Class / Patent application number | Description | Number of patent applications / Date published |
073100790 | Displacement, motion, distance, or position | 87 |
20080202200 | Calibrating tracking systems to remove position-dependent bias - A method for removing position-dependent bias from tracking systems computes invertible transformations between a tracking system and a reference system, and applies an inverse of the transformation to measurements in the tracking system to estimate the locations of reference points in the reference system and to determine relative bias at the measured points. | 08-28-2008 |
20080202201 | DEVICE AND METHOD FOR AUTOMATIC DETECTION OF INCORRECT MEASUREMENTS BY MEANS OF QUALITY FACTORS - What is disclosed is a device ( | 08-28-2008 |
20080250842 | Method for Optical Chassis Measurement - For optical chassis measurement of motor vehicles at a testing site that has at least one measuring unit having at least two imaging devices associated with one another in position and location, the measuring units are oriented with respect to the testing site with reference characteristics located fixedly at the testing site, evaluation in an evaluation device is effected on a basis orientation data and associated data obtained, for determining chassis data of a motor vehicle, in addition to the reference characteristics located fixedly at the testing site, at least one reference device is positioned which is usable in mobile fashion at the testing site with reference characteristics, and with a totality of reference characteristics in the evaluation device, the orientation data and the association data of the measuring units are obtained, and thus a common measuring station coordinate system is defined. | 10-16-2008 |
20080264143 | Method for Setting, Calibrating, and Verifying an Occupation Classification System Threshold - The invention is directed to a method for setting an occupant classification system threshold for a vehicle occupant detection system, the method comprising collecting occupant classification system data for a seat, the data being indicative of occupant weight, analyzing the data to determine where a separation exists between an occupant for which a restraint should be suppressed and an occupant for which the restraint should be deployed, and analyzing the data to determine a worst case child suppression weight and shape, which is based at least on where the separation exists. The worst case child suppression weight and shape define the occupant classification system threshold. | 10-30-2008 |
20080295570 | POSITIONING APPARATUS AND SCANNING PROBE MICROSCOPE EMPLOYING THE SAME - There is provided a scanning probe microscope employing a positioning apparatus M | 12-04-2008 |
20090019916 | Method for calibrating a measuring system - The invention relates to a method for calibrating measuring system ( | 01-22-2009 |
20090071227 | METHOD FOR DETERMINING THE TIRE DIAMETERS OF A MOTOR VEHICLE - A method and control for determining the tire diameters of a motor vehicle by comparing at least two opposite wheels. To provide the lowest possible measuring effort while simultaneously ensuring the highest possible precision, a driving maneuver including at least one cornering operation is defined as calibration drive, and the change in the vehicle orientation in the calibration drive is determined. The control includes sensors to determine the change in the vehicle orientation in a calibration drive. | 03-19-2009 |
20090107209 | SELF-CALIBRATING SENSOR DEVICE - A self-calibrating sensor includes a housing, an input lever coupled to the housing and configured to contact a device to be sensed, and an actuating element configured to automatically reposition an output device to a calibrated position. The sensor also includes a cam ring that is configured to move the output device to the calibrated position based on an input received from the actuating element and a lock ring coupled to the input lever. In one exemplary embodiment, the output device is an electrical contact assembly that is slidably engaged with the cam ring. During operation, the cam ring is configured to reposition the electrical contact assembly based on the input received from actuating element. | 04-30-2009 |
20090113986 | VERIFYING THE CALIBRATION STATUS OF AN OPTICAL TRACKING SYSTEM - The invention relates to a method for verifying the calibration status of an optical tracking system ( | 05-07-2009 |
20090120160 | ANALYZING METHOD FOR A SENSOR SYSTEM DETERMINING THE POSITION OF A SHIFTING FORK IN A CHANGE GEAR TRANSMISSION - An analyzing method for a sensor system determining the position of a shifting fork in a shift transmission is suggested wherein a shifting fork can be moved from a neutral position into at least one gear position. The position of the shifting fork is determined by a sensor system comprising at least one magnet and at least one magnetic field sensor that can be moved relative to the magnet. The method includes storing a base diagram for a base output signal in relation to position s and correcting the measured output signal so that the base diagram can be used for determining with high accuracy the position of the shifting fork. | 05-14-2009 |
20090183550 | Method and apparatus for measurement and/or calibration of position of an object in space - The invention concerns a method of and apparatus for measurement and/or calibration of the position of an object in space in such embodiment where the apparatus contains at least one moving arm fitted to the frame on one end and on the other end fitted to a platform, where the platform can be attached to the object to be measured or calibrated; during the motion of the object with the platform attached the relative positions of individual members of at least one moving arm, frame and platform are read and the measured data is used for determination of the position of the object or for its calibration. Upon attaching the platform of the measurement and/or calibration apparatus to the measured or calibrated object, these joined parts perform an arbitrary motion within object's operating space actuated by the drives of the object, while the quantities corresponding to relative positions of individual members of the apparatus are collected and used for determination or calibration of position of the object in space. The number of measured quantities during the motion of the platform with the measured or calibrated object is higher than the number of degrees of freedom of the apparatus by at least one | 07-23-2009 |
20090205403 | Calibration of an instrument location facility with an imaging apparatus - A method is proposed for calibrating an instrument location facility with an imaging apparatus. The instrument location apparatus and the imaging apparatus are synchronized temporally with one another. According to such synchronization at least three points of the position of a medical instrument relative to a tracking coordinate system of the instrument location apparatus and/or relative to an image coordinate system of the imaging apparatus are measured simultaneously both by the instrument location apparatus and by the imaging apparatus. The instrument and/or the imaging apparatus are moved relative to one another between the measurements. The measured points parameterize a predetermined transformation rule for mapping the tracking coordinate system onto the image coordinate system. | 08-20-2009 |
20090241634 | Micromachined accelerometer and method with continuous self-testing - Micromachined accelerometer and method in which a proof mass is suspended above a substrate for movement in response to acceleration, electrodes form capacitors which change in capacitance in response to movement of the proof mass, processing circuitry responsive to the changes in capacitance provides an output signal corresponding to movement of the proof mass, a test signal is applied to the electrodes during use of the accelerometer to produce additional movement of the proof mass and a corresponding test signal component in the output signal, and the output signal is monitored to determine whether the accelerometer is operating normally by the presence of the test signal component in the output signal. | 10-01-2009 |
20090282893 | INERTIAL SENSOR MISALIGNMENT AND COMPENSATION - An apparatus for providing information pertaining to the orientation of a vehicle to which the apparatus is coupled includes a chassis having a first interior surface and an inertial-sensor assembly disposed within the chassis and having a first exterior surface. A first sensor element is mounted on the first interior surface, and a second sensor element is mounted on the first exterior surface. At least one of the first and second sensor elements is configured to generate a first signal corresponding to an angle of displacement of the second sensor element with respect to the first sensor element. | 11-19-2009 |
20090282894 | INERTIAL SENSOR MISALIGNMENT AND COMPENSATION - An apparatus for providing information pertaining to the orientation of a vehicle to which the apparatus is coupled includes a chassis having a first interior surface and an inertial-sensor assembly disposed within the chassis and having a first exterior surface. A first sensor element is mounted on the first interior surface, and a second sensor element is mounted on the first exterior surface. At least one of the first and second sensor elements is configured to generate a first signal corresponding to a distance of displacement of the second sensor element with respect to the first sensor element. | 11-19-2009 |
20090320553 | Surface Measurement Probe - Apparatus and method of determining drift for a surface measurement probe. The surface measurement probe has a housing, a surface contacting stylus, a vibration generator which causes vibration of the stylus, a sensing device for determining a parameter related to change in vibration of the stylus, and a comparator for determining the relationship of the parameter with a threshold. Readings of the parameter are taken when the stylus is not in contact with a surface and average over a time t, which is significantly larger than the transition time when touching a surface. The average of the readings of the parameter is compared to a reference parameter. The comparison is used to determine whether there has been significant drift of the parameters. Thus drift due to temperature change is corrected. | 12-31-2009 |
20100005852 | Method of error compensation in a coordinate measuring machine - A method of calibrating an articulating probe head comprising the steps of measuring an artefact of known dimensions with the workpiece sensing probe mounted on the articulating probe head, in which the articulating probe head is unlocked. An error functional map is generated corresponding to the difference between the measured and known dimensions of the artefact. Subsequent workpieces are measured with the articulating probe head unlocked and the corresponding correction applied. The true dimensions of the artefact may be determined by measuring it with a probe mounted on an articulating probe head in which the axes of the articulating probe head are locked. A mechanical lock is provided to lock the axes of the articulating probe head. | 01-14-2010 |
20100018285 | Calibration - A method of calibrating a device comprising:
| 01-28-2010 |
20100018286 | Calibration apparatus, contact judging method and semiconductor testing apparatus - A calibration apparatus for probe contact conformity judgment is applicable to multiple pin measurement at a low cost with an easy operation. The calibration apparatus is provided with a calibration robot for bringing a probe into contact with a prescribed position on a performance board and a judging means for judging conformity of the contact. The calibration robot is provided with a calibration module having a driver for outputting an inspection signal and a comparator for inputting a reflected wave. The judging means judges conformity of the contact based on the timing at which a reflected wave is inputted into the comparator through the probe after the inspection signal is outputted to the probe from the driver. | 01-28-2010 |
20100058830 | Fault Detection for a Resistive Position Sensor - Circuits for detecting faults in variable resistive position feedback sensors common in the use of motion control systems, provide a filter coupled to an output signal of the variable resistive position sensor for processing the signal to detect noise indicative of intermittent faults. A memory stores occurrences of signals from the filter. The memory can activate an alarm which indicates that a failure is detected. The circuits are particularly applicable to medical imaging systems such as SPECT, PET or MRI systems which contain a multiplicity of moving components that require accurate motion control and positioning. | 03-11-2010 |
20100064767 | Atom-Interferometric, Stepped Gravity Gradient Measuring System - A full-tensor, gravity gradient measuring system is disclosed that is based on atom interferometry. Each axis in the three-axis measuring system is served by a different gravity gradiometer, where each gradiometer comprises three pairs of atom interferometric (AI) accelerometers. The accelerometers in each pair are mounted on opposite sides of the gradiometer's rotation axis from each other. The three AI accelerometer pairs are step-rotated, instead of being continuously rotated, thereby providing enhanced signal-to-noise performance. The three gradiometers in the overall measuring system are mounted orthogonally with respect to one another on a local-level platform, in order to achieve a full-tensor measuring system. The measuring system can be step-rotated as an overall unit around an axis perpendicular to a local level reference. The multiple levels of stepped rotation, as enabled by the atom interferometry being utilized, yields improved results with lower costs than what is achievable with some prior-art techniques. | 03-18-2010 |
20100077830 | ELECTRONIC SELF-CALIBRATION FOR SENSOR CLEARANCE - Self-calibration of a multiple channel clearance sensor system, which in one embodiment includes at least one sensor for measuring at least one clearance parameter signal between a stationary object and a rotating object of a rotating machine. The sensor output is processed as a clearance parameter by an offset correction section configured to determine an offset error in the clearance parameter signal which is used by a level shifter. The level shifter is also switchably coupled to the clearance parameter signal wherein the output of the level shifter, which may be amplified and digitally converted, is processed by a signal level analyzer to determine a channel gain signal. | 04-01-2010 |
20100154508 | Apparatus For Measuring Volumetric Or Mass Fluid Flow - Apparatus and method are provided for accurately measuring the volumetric or mass fluid flow, especially when fluid flows in a non-continuous manner using a float. A preferred embodiment comprises a tube for accumulating liquid that is periodically drained and a float confirmed within the tube that floats on the accumulating liquid. The float has magnetic properties that can be sensed so as to measure the position of the float in the tube. A controller controls a valve provided in the bottom of the tube and opens the valve so as to allow drainage of the accumulated liquid according to the positioning of the float within the tube. The valve is opened when the position of the float is in a predetermined position within the tube so that the mass or volume of the drained liquid is known. | 06-24-2010 |
20100206040 | METHOD FOR CALIBRATING PARAMETER OF ARTICULATED COORDINATE MEASURING APPARATUS - In a parameter calibration method of an articulated coordinate measuring apparatus of the present invention, a standard unit ( | 08-19-2010 |
20110000277 | METHOD AND APPARATUS FOR PROBE TIP DIAMETER CALIBRATION - A method for determining probe tip diameters with improved accuracy and reliability that includes performing a routine for determining probe tip diameter multiple times with the arm of the coordinate measurement machine in different machine positions. Diameter values associated with each of the calibration routines may be combined in a manner that provides more accurate diameter measurements. | 01-06-2011 |
20110041585 | Rotary Encoder Comprising Internal Error Control And Method Therefor - The invention relates to a rotary encoder comprising internal error control with a monitoring unit comprising at least a computing module, a verification means, a memory unit and an alarm unit. The invention also relates to a method for checking a rotary encoder when said encoder is in operation, the rotary encoder generating at least one measuring signal pair representative of the amount of rotation. In order to be able to determine the functioning of the rotary encoder, even when said rotary encoder is stationary, it is provided according to the present invention that a characteristic value should be created in the monitoring unit from current amplitude values of the measuring signal pair, said characteristic value being used in a comparison with at least one quality value representative of the functional states of the rotary encoder. | 02-24-2011 |
20110048102 | Circuits and Methods for Calibration of a Motion Detector - A circuit to detect a movement of an object has a calibration time period that ends when peak detectors in the circuit stop updating for a predetermined amount of time. A method associated with the circuit is also described. | 03-03-2011 |
20110048103 | Method and System for Motion Tracking - A method and a system for motion tracking, capable of tracking a trajectory of a movable object by an architecture having at least three accelerometers arranged in a predefined structure. The trajectory, displacement and rotational angle of the movable object are determined by ways of extrapolation, numerical calibration and vector transformation according to the acceleration signals detected by the at least three accelerometers. | 03-03-2011 |
20110048104 | TEST APPARATUS - A test sample is provided for testing performance of measuring and monitoring equipment for production lines, for example for foodstuffs or pharmaceuticals, and in particular, contamination monitoring equipment employing X-rays and/or metal detectors to spot foreign bodies in packaged products. The test sample may comprise a laminated card enclosing a standardised test piece such as a metal particle of specified size. The card or other sample bears at least one identification containing a barcode, readable by an optical scanner. To test the equipment, a card is placed on a product package passing through the equipment, the optical scanner reads the barcode to confirm that the correct test sample has been submitted, and the results for the test sample are recorded in a computer log. If the results do not match those expected from the particular test sample submitted, the equipment fails the test and requires recalibration or repair. | 03-03-2011 |
20110061441 | GANTRY STAGE ORTHOGONALITY ERROR MEASUREMENT METHOD AND ERROR COMPENSATION METHOD FOR POSITION PROCESSING - A gantry stage orthogonality error measurement method and error compensation method for homing processing includes: decoding and storing an encoder value of a current position of the Gantry stage that structurally matches an orthogonality; monitoring at least one of (a) sensors for homing processing and (b) encoder index signals respectively set on a master axis and a slave axis of the Gantry stage while the Gantry stage is driven at low speed; and in the event that the index signal is detected, decoding a linear encoder value of at least one of (a) the master axis and (b) slave axis. | 03-17-2011 |
20110083489 | DEVICE FOR PLACING A STOPPER WHILE SIMULTANEOUSLY CHECKING THAT THE STOPPER IS CORRECTLY POSITIONED - A device places a plug and simultaneously checks a correct position alignment of the plug with a holding element for fixing a hollow body. The device has at least one first and one second opening and a plug placement mechanism with which the plug is be inserted into the second opening of the hollow body. The device has a measuring head that is traversed by at least one channel. The channel can be fluidically connected to the first opening of the hollow body. The device can further include a pressure sensor which can be fluidically connected to the channel of the measuring head. | 04-14-2011 |
20110088448 | INSTRUMENT FOR CALIBRATING AN ALTIMETRIC DEVICE - Calibration instrument for an altimetric device delivering an indication of the altitude of the location where it is located on the basis of an atmospheric pressure measurement, characterized in that it includes means for transmitting a signal carrying data representative of the altitude at which it is placed. The invention also concerns a device delivering an indication of the altitude of the place where it is located on the basis of an atmospheric pressure measurement and a calibration system including a calibration instrument and an altimetric device. | 04-21-2011 |
20110132065 | System and Method for Calibrating an Automated Materials Handling System - A method of calibrating positions within a materials handling system, wherein the materials handling system includes multiple stations for carrying out tasks and a carrier that is movable between the multiple stations, includes the steps of: providing calibration points at a plurality of the multiple stations; moving the carrier to at least some of the calibration points; contacting the calibration points; recording the locations of the calibration points; and determining locations of key components of the stations based on the locations of the calibration points. In some embodiments, the method includes contacting the calibration points with a calibration tool, which may include: a cylindrical body; a groove in the cylindrical body sized and configured to receive jaws from the carrier; and a cylindrical upper flange positioned on an upper end of the cylindrical body. In this configuration, the tool can be gripped by the carrier and employed to perform a variety of calibration functions. | 06-09-2011 |
20110132066 | System and Method for Calibrating an Automated Materials Handling System - A method of calibrating positions within a materials handling system, wherein the materials handling system includes multiple stations for carrying out tasks and a carrier that is movable between the multiple stations, includes the steps of: providing calibration points at a plurality of the multiple stations; moving the carrier to at least some of the calibration points; contacting the calibration points; recording the locations of the calibration points; and determining locations of key components of the stations based on the locations of the calibration points. In some embodiments, the method includes contacting the calibration points with a calibration tool, which may include: a cylindrical body; a groove in the cylindrical body sized and configured to receive jaws from the carrier; and a cylindrical upper flange positioned on an upper end of the cylindrical body. In this configuration, the tool can be gripped by the carrier and employed to perform a variety of calibration functions. | 06-09-2011 |
20110146371 | METHOD FOR CALIBRATING A TRANSDUCER ARRAY - An iterative method for calibrating a transducer array characterized by calibration parameters, based on time delay measurements between transducer pairs, comprising the steps of: creating a distance data set that includes pairwise distances between estimated positions of transducer; forming a time delay measurement data set that includes time delay measurements between transducer pairs; generating from the time delay measurement data set an estimate of at least one calibration parameter; modifying the time delay measurement data set and the distance data set based on the estimated calibration parameters; denoising the modified distance data set with an iterative algorithm; updating the estimated positions of transducers based on the denoised modified distance data set; and repeating at least a portion of the steps until the difference between the estimated positions of transducer pairs and updated estimated positions of transducers satisfies a stopping criterion. | 06-23-2011 |
20110174050 | Support device for probe - Support device ( | 07-21-2011 |
20110174051 | CALIBRATION OF A SENSOR FOR PROCESSING VALUE DOCUMENTS - The invention relates to a method for calibrating a sensor which is configured for checking value documents. The sensor senses measurement signals of a calibration medium which is transported past the sensor. From the sensed measurement signals there are determined reference data of the calibration medium and there is moreover determined a transport property of the calibration medium, e.g. the transport speed or the transport position of the calibration medium. From the transport property there is ascertained at least one correction value which is employed for correcting the sensed reference data of the calibration medium. After the calibration, the corrected reference data are compared with target data of the calibration medium. Optionally there is then effected an adjustment of the sensor using the corrected reference data. | 07-21-2011 |
20110179851 | MOUTH GUARD FORMATION METHODS - A method for producing a mouth guard having an encapsulated sensor module. The method includes vacuum forming a first sheet of thermoplastic material using a mold to produce a first mouth guard layer, attaching a sensor module to the first mouth guard layer with a hot melt adhesive, vacuum forming a second sheet of thermoplastic material over the sensor module to produce a second mouth guard layer, storing a default threshold level in the sensor module, and calibrating the sensor module to account for sensor alignment. In an example embodiment, the first and second layers are formed such that they define an open area that allows a user's tongue to touch their upper palate after the mouth guard has been inserted and such that the layers define a channel for accepting a plurality of teeth, including the incisors of a user. | 07-28-2011 |
20110247391 | METHOD FOR CALIBRATING TWO INTERACTING WORKING ROLLERS IN A ROLLING STAND - The invention relates to a method for calibrating a rolling stand ( | 10-13-2011 |
20110271736 | SYSTEM FOR DETERMINING A SETPOINT ASSOCIATED WITH THE POSITION OF A PEDAL IN AN AUTOMOBILE - A system for determining a setpoint associated with a position of a pedal in an automobile of type that includes two sensors each measuring a value associated with the pedal position. The system includes a mechanism capable of switching between a first and second state on a predetermined switching position of the pedal, and a mechanism generating the setpoint on the basis of the measures from the two sensors and of a current state of the switching mechanism. The generation mechanism is capable of selecting the measure corresponding to the smallest of the pedal positions when the switching mechanism is in the first state, and selecting the measure corresponding to the largest of the pedal positions when the switching mechanism is in the second state. | 11-10-2011 |
20110277534 | Method of error compensation in a coordinate measuring machine - A method of calibrating an articulating probe head comprising the steps of measuring an artefact of known dimensions with the workpiece sensing probe mounted on the articulating probe head, in which the articulating probe head is unlocked. An error functional map is generated corresponding to the difference between the measured and known dimensions of the artefact. Subsequent workpieces are measured with the articulating probe head unlocked and the corresponding correction applied. The true dimensions of the artefact may be determined by measuring it with a probe mounted on an articulating probe head in which the axes of the articulating probe head are locked. A mechanical lock is provided to lock the axes of the articulating probe head. | 11-17-2011 |
20120000269 | Position measuring system and method for assembly - A method for mounting a substrate of a measurement graduation and a scanning head of a position measuring system on a first machine part and a second machine part. The method including fastening a substrate of a measurement graduation and a scanning head on first and second portions, respectively, of a mounting aid. The method including adjusting a location of the first portion relative to the second portion in a first degree of freedom that differs from a measurement direction in which a relative position of the first machine part relative to the second machine part is to be measured. The method including fastening the substrate and the scanning head on the first and second machine parts, respectively, at the mounting position. The method further including removing the mounting aid. | 01-05-2012 |
20120067106 | METHOD AND DEVICE FOR CORRECTING THE ACTUAL LIMIT VALUE OF A SENSOR - A controlling unit and a method of correcting an actual limit value of a sensor signal is described, wherein above or below the limit value a specific state of the sensor is recognized, the method comprises the steps of determining a new limit value of the sensor, determining a stability criteria to decide whether the actual limit value is corrected with said new limit value and approaching the actual limit value to the new limit value when the conditions are fulfilled to correct the actual limit value for said sensor. | 03-22-2012 |
20120079869 | Sort Gap Control - A sortation conveyor includes a method of calibrating the control system to provide a calibration value indicative of the spacial correlation between the sort induct sensor and the first shoe sensor. | 04-05-2012 |
20120144895 | DEVICE FOR DETECTING AT LEAST ONE ZERO POSITION - A device for detecting at least the zero-point position of at least one moving component. The device comprises at least one detection device that is fixedly supported relative to the zero-point position of the component. The component has at least one recess in the area of the zero-point position to be detected. The detection device has at least first and second sensors which form a sensor pair. The sensor pair is associated with the recess, in the area of the zero-point position, in order to detect a change of state so that the zero-point position can be detected without moving the component. | 06-14-2012 |
20120151988 | MACHINE CALIBRATION ARTIFACT - A calibration artifact includes an elongated body made substantially entirely of ceramic material and having a direction of elongation. A plurality of measurement elements comprising the ceramic material are integrally formed with the elongated body, each measurement element comprising a first planar measurement surface facing in a first direction. The first planar measurement surface of each measurement element is parallel to the first planar measurement surface of each of the other measurement elements of the plurality of measurement elements. The calibration artifact may be a unitary step gauge formed with a single piece of ceramic material. | 06-21-2012 |
20120160007 | METHOD AND CALIBRATION MASK FOR CALIBRATING A POSITION MEASURING APPARATUS - A method for calibrating an apparatus for the position measurement of measurement structures on a lithography mask comprises the following steps: qualifying a calibration mask comprising diffractive structures arranged thereon by determining positions of the diffractive structures with respect to one another by means of interferometric measurement, determining positions of measurement structures arranged on the calibration mask with respect to one another by means of the apparatus, and calibrating the apparatus by means of the positions determined for the measurement structures and also the positions determined for the diffractive structures. | 06-28-2012 |
20130086973 | AUTO-CALIBRATION SYSTEMS FOR COIN COUNTING DEVICES - Systems and methods for calibrating a coin sensor are disclosed herein. An auto-calibrating coin sensor configured in accordance with one embodiment of the disclosure includes a movable carrier holding at least one test coin or other test object. The carrier can move the test object past or through the coin sensor to calibrate the coin sensor. Embodiments of the present technology can include rotatable and linearly moveable carriers that are configured to move an attached test object through a coin sensor. Additionally, auto-calibrating coin sensors in accordance with the present technology can be configured to initiate an auto-calibration based on the commencement of a coin counting session, a set schedule, a temperature change, and/or other events. | 04-11-2013 |
20130125615 | Calibration device for Measurement Gauges of the Diameter and other Geometrical Characteristics of Cylinders - A calibration device for gauges for the measurement of the geometrical characteristics of cylinders, such as the diameter, profile, rotundity and eccentricity errors, wherein such gauges include a pair of movable opposing arms equipped with feelers or sensors at their free ends, includes a pair of abutments reciprocally approachable and/or withdrawable by means of motors until a sample measure is obtained, as desired, within the measuring range of the gauge, on which the calibration device is assembled, revealed by means of measuring means cooperating with the abutments, such that consequently the feelers or sensors are respectively abutted or approached to the abutments to reveal the sample measure. | 05-23-2013 |
20130205867 | Automatic rectifying system for machine tools - An automatic rectifying system for machine tools includes a carrier platform, a contact type probe, a control device and a driving mechanism. The carrier platform may carry a work piece and a calibrator. The contact type probe is fitted to a main axle. In use, the contact type probe may touch the calibrator. The position of the calibrator corresponds to at least a trigger parameter so as to define a reference point. Such trigger parameter is fed to the control device. Then, the control device generates a control signal. Next, the control signal is fed to the driving mechanism, which in turn may move the carrier platform to offset the displacements or deviations of the carrier platform. | 08-15-2013 |
20130269415 | CRANK SIGNAL ERROR DETECTION USING A CAM SIGNAL INTERVAL - A method of detecting a crank signal error that includes incrementing a crank tooth counter in response to detecting a crank signal, comparing the crank tooth counter to an expected value when a cam signal is detected, and indicating a crank signal error if the crank tooth counter is not substantially equal to the expected value. This method is advantageous because a cam interval used to determine when to start and stop counting crank tooth pulses is automatically adjusted for variations in engine speed, while the prior art time based methods must adjust the time interval for variations in engine speed. | 10-17-2013 |
20130305805 | DEVICE, SYSTEM AND METHOD FOR CALIBRATION OF CAMERA AND LASER SENSOR - Disclosed are a calibration device, a calibration system and a calibration method. The calibration device includes a camera configured to capture image information, a laser sensor configured to capture image information, a laser sensor configured to detect distance information, and a calibration module configured to perform a calibration of the camera and the laser sensor by obtaining a relation between the image information and the distance information, wherein the calibration module includes a plane member disposed to intersect a scanning surface of the laser sensor such that an intersection line is generated, and disposed within a capturing range by the camera so as to be captured by the camera, and a controller configured to perform coordinate conversions with respect to the image information and the distance information based on a ratio between one side of the plane member and the intersection line, and based on a plane member image included in the image information. Under these configurations, a calibration is performed through direct coordinate conversions with respect to image information and distance information. | 11-21-2013 |
20130319077 | Method for the validation of solar altitude-dependent measured values of several measurement channels - A method for the validation of solar altitude-dependent measured values of several measurement channels ( | 12-05-2013 |
20140060148 | METHOD FOR ESTIMATING AND CORRECTING MISREGISTRATION TARGET INACCURACY - Aspects of the present disclosure describe systems and methods for calibrating a metrology tool by using proportionality factors. The proportionality factors may be obtained by measuring a substrate under different measurement conditions. Then calculating the measured metrology value and one or more quality merits. From this information, proportionality factors may be determined. Thereafter the proportionality factors may be used to quantify the inaccuracy in a metrology measurement. The proportionality factors may also be used to determine an optimize measurement recipe. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. | 03-06-2014 |
20140083161 | SYSTEM AND METHOD FOR CALIBRATING REFERENCE SYSTEM FOR VEHICLE MEASUREMENT - A measuring station system for calibrating a reference system for vehicle measurement has at least one image recording device, a calibration device having multiple calibration device reference features, and a calibration frame having at least three support points which are designed for accommodating a reference system carrier for the reference system to be calibrated. The calibration frame has at least three calibration frame reference features. The positions of the support points and of the calibration frame reference features in a shared coordinate system are known. | 03-27-2014 |
20140083162 | Measuring Device - A measuring device for in-process measurement of test pieces during a machining operation on a machine tool, in particular a grinding machine, has a base body, and a measuring head movable between a neutral position and a measuring position and which is connected to the base body via a rod assembly which is configured and set up in such a way that the measuring head in the measuring position follows orbital rotations of a test piece about a rotational axis. The measuring head has a measuring sensor which is deflectable along a linear axis for recording measured values during a measuring operation. A control apparatus is provided for controlling the measuring operation. The control apparatus is configured and set up in such a way that the measuring device may be calibrated in a calibration mode. | 03-27-2014 |
20140083163 | ELECTRIC INPUT KEY - An electric input key has an actuating surface and a plurality of displacement sensors which are each designed to generate a displacement signal when the actuating surface is touched. The input key also has an evaluation unit for evaluating the displacement signals and outputting a determined switching state. The input key has at least one analog displacement sensor, at least one digital displacement sensor, and a calibration device for calibrating the analog displacement sensor by using displacement signals measured by the digital displacement sensor. The evaluation unit is designed to carry out self-diagnosis by using calibrated and measured displacement signals. | 03-27-2014 |
20140130571 | SYSTEM AND METHOD FOR OFFSETTING MEASUREMENT OF MACHINE TOOL - A method and a system, for offsetting measurement of machine tool, includes following steps. A tool seat is chosen, a first coordinate is set based on a first datum mark of the tool seat. There is a total tool seat assembling length in between the first datum mark and the tool seat. A tool is chosen, assembled in the tool seat, and includes a total tool length. A second coordinate is set based on a second datum mark of a measuring unit. The tool seat is moved to make a machining end of the tool contact with the second coordinate to obtain a relative total length in between the first and the second coordinate. The total tool length subtracts from the relative total length equals an assembled offset length. The total tool seat assembling length subtracts from the relative total length equals and obtains a tool assembling length. | 05-15-2014 |
20140157861 | METHOD AND APPARATUS FOR INSPECTING WORKPIECES - A series of nominally identical production workpieces is measured on a measuring apparatus. To correct for temperature variations, one of the workpieces forms a master artefact, the dimensions of which are known. The artefact is measured on the measuring apparatus at two or more temperatures, producing two or more corresponding sets of measured dimensional values of the master artefact at the respective temperatures. One or more error maps, look-up tables, or functions are generated which relate the measured dimensional values of the artefact to the known dimensions of the artefact. The error map(s), look-up table(s) or function(s) are dependent on the respective temperatures at which the artefact was measured. Correction values derived from the error map(s), look-up table(s) or function(s) are used to correct the measurements of production workpieces in the series. These correction values are determined in dependence upon the temperature at which the workpiece measurements were obtained. | 06-12-2014 |
20140165693 | CONSTRUCTION MACHINE WITH SETUP ASSISTANCE SYSTEM FOR A SENSOR UNIT - A construction machine includes a sensor unit having a measurement range. The sensor unit is variable in its orientation relative to the construction machine, whereby position or orientation of the measurement range relative to the construction machine is also variable. The sensor unit is configured for detecting position of an external reference. The construction machine further includes a setup assistance system including a display configured to indicate to an operator while the sensor unit is oriented relative to the reference in which direction the sensor unit has to be moved in order for the reference to be located in the measurement range. The sensor unit is configured to detect a position of the reference relative to the sensor unit in at least two dimensions, and the display is configured to display the position of the reference relative to the measurement range for the at least two detected dimensions simultaneously. | 06-19-2014 |
20140174149 | CALIBRATION METHOD FOR TRIGONOMETRIC-BASED RANGING SYSTEMS IN MULTIPLE MEDIA - A method of calibrating a trigonometric-based ranging system in first and second transmissive media including, in each of the first and second media, determining a sensor matrix for a sensor of the system therein. Rotation and translation of a sensor axis of the sensor is measured relative to an ideal sensor axis, by determining the rotation and translation of a sensor co-ordinate system of the sensor in each of the first and second media concurrently, to provide a rotation/translation matrix for a field of view of the sensor in each of the first and second media. Rotation of a device axis of a structured signal-emitting device relative to an ideal device axis is measured by determining a relative change in the structured signal in the first medium and in the second medium, to generate a device rotation matrix to be applied to the structured signal. | 06-26-2014 |
20140202229 | SYSTEMS AND METHOD FOR GYROSCOPE CALIBRATION - A mechanism by which a MEMS gyroscope sensor can be calibrated using data gathered from other sensors in a system incorporating the MEMS gyroscope sensor is provided. Data gathered from an accelerometer and a magnetometer in fixed orientation relative to the gyroscope is used to calculate changes in orientation of a system. A constant acceleration vector measured by the accelerometer and a constant magnetic vector measured by the magnetometer are used as reference vectors in a solution to Wahba's problem to calculate a rotation matrix providing the system's orientation with respect to those two constant vectors. By comparing changes in orientation from one time to a next time, measured rates of angular change can be calculated. The measured rates of angular change can be used along with observed gyroscope rates of angular change as input to a linear regression algorithm, which can be used to compute gyroscope trim parameters. | 07-24-2014 |
20140245810 | SINGLE MOTOR DYNAMIC CALIBRATION UNIT - A calibration unit, system, and method for calibrating a device under test are provided. The calibration unit, system, and method use a single axis rotational unit to calibrate devices under test on a test head. The single axis rotation unit is configured to extend at an angle from a known axis. The test head can be designed in the shape of a frustum with multiple sides. The calibration unit, system, and method can use combinations of gravitational excitation, Helmholtz coil excitation, and rotational rate excitation for calibrating the device under test. The calibration unit, system, and method can calibrate a 3 degree for freedom or higher MEMS devices. | 09-04-2014 |
20140260522 | HOME POSITION INDICATOR, ENCODER POSITION MEASUREMENT SYSTEM INCLUDING A HOME POSITION INDICATOR, AND A METHOD OF DETECTING A HOME POSITION - A home position indicator that enhances the functionality of an incremental encoder with characteristics of an absolute encoder includes a target flag having a plurality of marks. In one embodiment, pairs of adjacent marks of the plurality of marks define sections between each adjacent pair of marks of the plurality of marks. Each section has a width, wherein one of the sections has a width greater than a width of another of the sections. A sensor sequentially senses two adjacent marks of said plurality of marks to determine a width of the section defined between the two adjacent marks. | 09-18-2014 |
20140326039 | APPARATUS AND METHOD FOR ASSISTING HYDRAULIC CYLINDER STROKE INITIAL CALIBRATION WORK - The present invention includes a stroke sensor which is arranged on a hydraulic cylinder and measures a stroke length of the hydraulic cylinder; a rotary encoder and a magnetic force sensor which measure a reset reference point to reset a value of the stroke length measured by the stroke sensor; a stroke end detection processing unit which detects a stroke end position of the hydraulic cylinder; a calibration processing unit which calibrates the measured value of the stroke length when the reset reference point and/or the stroke end position is detected; an HMI monitor which displays an entire work machine mounted with the hydraulic cylinder when an initial calibration work for the hydraulic cylinder is carried out; and a highlight display processing unit that highlights a moving portion to drive a hydraulic cylinder to be calibrated along with an indication of a driving direction. | 11-06-2014 |
20140326040 | DEVICE FOR PLACING A STOPPER WHILE SIMULTANEOUSLY CHECKING THAT THE STOPPER IS CORRECTLY POSITIONED - A device places a plug and simultaneously checks a correct position alignment of the plug with a holding element for fixing a hollow body. The device has at least one first and one second opening and a plug placement mechanism with which the plug is be inserted into the second opening of the hollow body. The device has a measuring head that is traversed by at least one channel. The channel can be fluidically connected to the first opening of the hollow body. The device can further include a pressure sensor which can be fluidically connected to the channel of the measuring head. | 11-06-2014 |
20140345359 | GAUGE ARTEFACT AND METHOD FOR CHECKING A COORDINATE POSITIONING MACHINE - This invention concerns a gauge artefact including a base for mounting on a table of a coordinate positioning machine and a platform including at least two portions having a nominally identical geometric property. The platform is locatable relative to the base in at least two positions such that each of the at least two portions having the nominally identical geometric property can be presented at a common location relative to the base. The platform may be arranged such that the positions of the portions having a nominally identical geometric property can be interchanged by movement of the platform between at least two distinct positions. The positions may be interchanged through rotation of the platform. The invention also concerns a method of checking a coordinate measuring machine. | 11-27-2014 |
20150059431 | Calibration Control Device for Metrology Tools - A calibration control device for being coupled to a measuring device such as a caliper, micrometer, or gauge is provided. The calibration control device includes a circuit portion and couples to a coupling feature on the measuring device. A calibration limit portion defines a parameter limit as related to a usage limit for which the measuring device is certified as calibrated. A controller operates a host-side data connection portion of the calibration control device to output measuring data in a first mode when the usage limit is not exceeded, and operates the calibration control device to perform a calibration limit function when the usage limit is exceeded. The calibration limit function may include stopping the output of the measuring data through the host-side data connection or providing an out-of-calibration warning to the host, or the like. | 03-05-2015 |
20150068272 | INTERFERENCE DETERMINATION METHOD AND INTERFERENCE DETERMINATION DEVICE FOR MACHINE TOOL - An interference determination method for machine tools which determines whether or not there will be interference between elements that move relative to each other, the method including: a setting procedure for setting a machine tool model obtained by combining the shape model of each of the elements including a work model corresponding to the work; a measurement procedure for measuring the position of the work attached to the work attachment part; a correction procedure for acquiring, at a predetermined timing, the position of the work measured in the measurement procedure, and correcting the machine tool model set in the setting procedure; and a determination procedure for determining whether or not there will be interference between the elements on the basis of the machine tool model corrected in the correction procedure. | 03-12-2015 |
20150338247 | Encoder Aligning Apparatus - An encoder aligning apparatus includes: a first support member connected to a moveable unit moved along a base; a second support member connected to the first support member through a resilient member, the second support member being provided with an encoder facing a linear scale attached to said base; and an adjustment member penetrating the first support member to contact the second support member for adjusting the distance and the angle between the first support member and the second support member so as to properly align the encoder with the linear scale. | 11-26-2015 |
20160084647 | METHOD FOR ACQUIRING SENSOR DATA AND ELECTRONIC DEVICE THEREOF - An example electronic device calibrates a center of a sensor for acquiring sensing data differently according whether the electronic device is worn on a part of a user body or not, and provides data sensed based on a result of the calibrating to the user, so that more exact and/or accurate data and a better sense of use can be provided to the user. | 03-24-2016 |
20160123780 | METHODS AND APPARATUS FOR ERROR DETECTION IN A MAGNETIC FIELD SENSOR - A magnetic field sensor for detecting motion of an object includes error detection circuiting and processing. Magnetic field sensing elements are configured to generate at least two magnetic field signals in response to a magnetic field associated with the object which signals are used by detectors to generate right and left channel signals with edges indicative of motion of the object. A direction calculation processor responsive to right and left channel signals generates a direction signal having a state indicative of a direction of motion of the object and an output signal generator generates an output signal having a pulse indicative of the direction of motion of the object in response to the direction signal. An error detection processor responsive to the output signal and to the direction signal is configured to detect an error in at least one of the direction signal and the output signal. | 05-05-2016 |
20160131476 | DEVICE AND METHOD FOR CALIBRATING A COORDINATE-MEASURING DEVICE - A device calibrates a coordinate-measuring device. The device contains at least one calibrating element and the calibrating element has a plurality of surface sections. The surface sections that butt against each other form an edge. The device further contains at least one retaining device and the calibrating element is arranged on a surface section of the retaining device. The surface sections of the calibrating element are arranged in relation to each other in such a manner that the calibration element has at least one edge that does not overlap any other edge of the calibrating element when the edges are projected into a common projection plane. The projection plane is oriented orthogonally to a normal vector of the surface section of the retaining device. | 05-12-2016 |
20160138911 | CALIBRATION OF A CONTACT PROBE - A method of calibrating a contact probe having a contact element includes measuring with the contact probe a first geometric property of a calibrated artefact and a second geometric property of the or a further calibrated artefact. The first and second geometric properties are such that a deviation between a measured value and the expected value, resulting from a difference between an effective diameter of the contact element and an assumed diameter used for determining the measured value, has the opposite sign for each of the first and second geometric properties. The method further includes identifying a difference in the effective diameter of the contact element from the assumed diameter including comparing deviations of the measured value to the expected value for each of the first and second geometric properties to determine whether there is a difference in the deviations. | 05-19-2016 |
073100810 | Length, width, or height | 13 |
20090056412 | METHOD FOR CALIBRATION OF MEASURING EQUIPMENT AND MEASURING EQUIPMENT - A method for the calibration of measuring equipment, and measuring equipment. The measuring equipment comprises at least one first sensor, at least one second sensor and at least one reference piece. When the measuring equipment is calibrated, a moving web is supported against the reference piece and the reference piece with the moving web supported thereto is moved to different distances from the first sensor and the second sensor. Further, a distance between the first sensor and the moving web and a distance between the second sensor and the reference piece is measured at least for two different distances, and the first sensor and the second sensor are calibrated to be uniform in relation to the movement of the reference piece. | 03-05-2009 |
20090100900 | Optical method and system for generating calibration data for use in calibrating a part inspection system - An optical method and system for generating calibration data are provided. The calibration data is for use in calibrating a part inspection system. The method includes supporting a calibration device having a central axis and a plurality of regions which are rotationally symmetric about the axis. The method further includes scanning the device with an array of spaced planes of radiation so that the device occludes each of the planes of radiation at spaced locations along the central axis to create a corresponding array of unobstructed planar portions of the planes of radiation. Each of the unobstructed planar portions contains an amount of radiation which is representative of a respective geometric dimension of the device. The method still further includes measuring the amount of radiation present in each of the unobstructed planar portions to obtain measurement signals. The method includes processing the measurement signals to obtain calibration data for calibrating the system. The calibration data is capable of converting raw data to calibrated data. | 04-23-2009 |
20090100901 | Calibration device for use in an optical part measuring system - A calibration device for use in an optical, part measuring system is provided. The device has a central axis and a plurality of regions which are rotationally symmetric about the axis. The device includes a series of step-shaped portions defining a multi-step region having a plurality of step edges. A profile of the multi-step region contains information for calibrating the system. The device further includes a plurality of cylindrically-shaped portions spaced apart along the axis and defining constant diameter regions containing information for calibrating the system. The device still further includes a frustum-shaped portion defining a pair of spaced, slope edge regions and a sloped region having boundaries marked by the pair of slope edge regions. The frustum-shaped portion has first and second diameters at its boundaries which define a range of diameters of parts capable of being measured in the system. A profile of the slope edge regions and the sloped region contains information for calibrating the system. | 04-23-2009 |
20100107724 | Method and Apparatus for Calibrating a Metrology Tool - A method and apparatus for calibrating a metrology tool are disclosed. The apparatus includes a substrate having at least one calibration site formed thereon. The calibration site includes a pattern of cells that have at least one feature disposed in a surface of the substrate. The feature provided for measurement by a step height metrology tool and a phase metrology tool to calibrate the step height and phase metrology tools. | 05-06-2010 |
20110056266 | Method For Calibrating Stack Height Sensing In A Media Stack Height Monitoring System In An Image Forming Machine - A method of calibrating stack height sensing in a media stack height monitoring system in an image forming machine includes sensing the angular position of a pick mechanism arm, generating electrical signals having levels correlated to the pick mechanism arm angular positions that correspond to different stack height levels, measuring and storing at least one value corresponding to the level of the electrical signal at least at one of two calibration points: “full load” and “stack out” conditions of the media stack, estimating either the amount or percent of media sheets remaining in the media stack corresponding to measured and stored value of the electrical signal level at the at least one calibration point, and indicating either of the amount or percent of media sheets remaining in the media stack. | 03-10-2011 |
20110162434 | COMPOSITE CALIBRATION/VERIFICATION GAUGE AND METHOD OF ITS MANUFACTURE - The present invention relates to a combination calibration/verification gauge for calibrating measuring instruments with a measurement precision. More particularly, the present invention relates to a multi-function, multi-dimension length standard and works as a working standard to compare various measuring instruments on the shop floor. | 07-07-2011 |
20130061650 | Optical Aberration Correction for Machine Vision Inspection Systems - A system and method for correcting surface height measurements for optical aberration is provided. Heights determined by an autofocus tool, which may depend on surface feature angles in a focus region of interest (ROI) and on the ROI location in the field of view, are corrected based on a novel error calibration. Error calibration data includes height corrections for different feature angles in images, and for multiple locations in a field of view. Height corrections are determined by weighting and combining the angle dependent error calibration data, e.g., based on a gradient (edge) angle distribution determined in the ROIs. When Z-heights are determined for multiple ROIs in a field of view, storage of image data from particular images of a global image stack may be efficiently controlled based on determining early in processing whether a particular image is a sufficiently focused “near-peak” focused image or not. | 03-14-2013 |
20140245811 | Fluid Percussion System And Method For Modeling Penetrating Brain Injury - A fluid percussion system for modeling penetrating brain injury includes a fluid percussion device that takes inputs in the form of pressurized gas and electrical signals from a computer and outputs a single hydraulic pulse, or multiple hydraulic pulses in quick succession. The fluid percussion device may include a pneumatic cylinder assembly and a hydraulic cylinder assembly that is actuated by the pneumatic cylinder assembly to produce the hydraulic pulse(s) of pressurized fluid. Each pulse may be used to rapidly inflate and deflate an attached balloon (representing a brain penetrating device). The balloon may be inserted in a test specimen, and the rapid inflation and deflation of the balloon creates a lesion that simulates a penetrating brain injury. A calibration system that employs an optical sensor may be used to determine maximum balloon diameter achieved during rapid inflation. | 09-04-2014 |
20150089994 | PHOTO SCALING GUIDE CONFIGURED TO SCALE WOUNDS OR OBJECTS - A photo scaling guide or system configured to scale both the area and linear dimensions of wounds or objects at the same time with one device. | 04-02-2015 |
20150121991 | MULTI-INSTRUMENT CALIBRATION STANDARD - A calibration standard includes a base and an outside measurement gage block disposed in a recess of the base such that edges and calibration surfaces of the outside measurement gage block are protected by the base and allow access to the calibration surfaces by a caliper. A method for calibrating calipers using the calibration standard is also provided. | 05-07-2015 |
20150143871 | DAILY CHECKING AND CALIBRATING METHOD OF LENGTH MEASURING MACHINE - A daily checking and calibrating method of a length measuring machine is disclosed. The method includes the following steps. Step (1) is for detecting a state of the length measuring machine at a predetermined daily check time. Step (2) is for stopping the transportation of substrates upon determining the length measuring machine is in an idle state. Step (3) is for measuring coordinates of positioning marks on a substrate-carrying platform to generate a measured data file and comparing the measured coordinates of the positioning marks with predetermined standard coordinates. Step (4) is for automatically calculating a calibration value when a difference between the measured coordinates of the positioning marks and the predetermined standard coordinates is smaller than a predetermined value and updating the calibration value to a coordinate parameter file to complete automatic calibration. Otherwise, an alarm is activated. Step (5) is for determining follow-up measures when the difference between the measured coordinates of the positioning marks and the predetermined standard coordinates is larger than the predetermined value. The determination is made in accordance with a predicted reason causing the difference. The follow-up measures include automatic calibration, no calibration, and additional measurements of large-scale substrate. | 05-28-2015 |
20160091703 | Method of Calibrating a Nanometrology Instrument - A method of calibrating a topography metrology instrument using a calibration reference, which includes a substrate and a plurality of bi-layer stacks. Each bi-layer stack includes a plurality of bi-layer steps. At least one bi-layer step of the plurality of bi-layer steps includes two materials. The at least one bi-layer step of the plurality of bi-layer steps includes an etch stop layer and a bulk layer. The calibration reference includes a calibration reference step profile includes a plurality of predetermined bi-layer stack heights. The calibration reference step profile and the predetermined bi-layer stack heights are measured using a topography metrology instrument. The topography metrology instrument is calibrated based on the measured calibration reference step profile and the measured bi-layer stack heights. | 03-31-2016 |
20160249997 | FORCE-ASSISTING CALIBRATION DEVICE | 09-01-2016 |