Class / Patent application number | Description | Number of patent applications / Date published |
073100730 | Liquid level or volume measuring apparatus | 54 |
20080245129 | System for detecting failures in fuel systems - A diagnostic system and method for detecting failures in a fuel system of a vehicle includes a fuel level monitoring module that determines a first change in a first fuel level of a first fuel tank based on data received from a first fuel level sensor and determines a second change in a second fuel level of a second fuel tank based on data received from a second fuel level sensor. A sensor diagnosing module evaluates operation of the second fuel level sensor based on the first change in the first fuel level. | 10-09-2008 |
20080245130 | System for detecting failures in fuel systems - A diagnostic system and method includes a fuel level sensor that senses a fuel level in a fuel tank and a sensor diagnostic module that monitors a fuel transfer mechanism for a time period, that calculates a change in the fuel level, and that evaluates operation of the first fuel level sensor based on the change and the predetermined period. | 10-09-2008 |
20080271516 | LIQUID LEVEL SENSOR - A liquid level sensor system actuated by a column pressure includes a hollow member having a distal open end adapted to be positioned into a liquid reservoir to a depth below a liquid surface level, and a sensor head unit. The sensor head unit is responsive to the column pressure to provide an indication of a liquid level in the reservoir. | 11-06-2008 |
20080295569 | Method and Arrangement For Calibration of a System For Determining the Amount of Liquid in a Reservoir - A method for calibration of a system for determining the amount of fuel in a fuel tank includes a first step of initiating a start of the calibration, a second step which includes detection of a level of a fuel-level sensor and detection of a point in time at which the level was detected, and further steps corresponding to a periodical repetition of the second step. The calibration is carried out during addition of fuel to the fuel tank at a generally constant flow velocity. An arrangement for such a calibration is also provided. | 12-04-2008 |
20090007627 | System And Method For Measuring Content Of A Bin - A system for measuring the height of bin content includes a transmitter for transmitting an acoustic pulse towards the upper surface of the content, a non-collinear receiver array for receiving an echo of the pulse and producing signals in response to the echo, and a processing apparatus for computing one or more directions of arrival of the signals from the upper surface to the array along with corresponding measured distances. Preferably, the receivers are transducers that also serve as transmitters. Two or more such measured distances constitute a map of the upper surface for estimating the quantity of the bin content. Preferably, the system includes a pulse shaper and repeater for optimizing the pulse shape relative to the signals. | 01-08-2009 |
20090064757 | SELF-CALIBRATING LIQUID LEVEL TRANSMITTER - The present disclosure generally relates to a capacitance sensing apparatus equipped with self-calibrating capacity and method of use thereof. The disclosure contemplates the determination using a secondary means of precise fluid levels according to five possible embodiments, and the use of the determined fluid level to recalibrate the capacitance sensing apparatus along its continuous analog level, namely, a variation of the thickness of the insulation of a capacitance sensing apparatus, the variation of the surface geometry of the capacitance sensing apparatus, the use of a dual-probe sensor including a probe with a varied surface geometry, the use of an electromagnetic sensor adjoining the capacitance sensor, and the variation of the electromechanical sensor to serve as a capacitance sensing apparatus. The disclosure also contemplates methods for using the sensing apparatus previously disclosed to measure a fluid level using a self-calibrating capacitance sensing apparatus. Finally, the present disclosure contemplates the use of an improved mathematical method associated with a variability measurement, such as an exponential smoothing method, to determining locally discrete changes in the variability measurement of the capacitance in order to determine a fixed fluid level. | 03-12-2009 |
20090120159 | Liquid Level Sensor and Estimation Method - A sensor for detecting a liquid level, including a measurement capacitor, a reference capacitor, an integrating capacitor, a calibration capacitor, a controller, an amplifier, a comparator, and a complementary calibration capacitor. The controller implements operations, over accumulation periods and for given target and discharge capacitors, of a target capacitor charging, a charge transfer, a decision, a conditional discharge, and a return. The target and discharge capacitors given at each period are taken from pairs of capacitors, including the measurement and calibration capacitors and the reference and complementary calibration capacitors. A method estimates the liquid level using the sensor in a vehicle. | 05-14-2009 |
20090139301 | APARATUS AND METHOD FOR CALIBRATING THE SENSITIVITY OF A MOISTURE SENSOR - A water moisture sensor calibration apparatus, comprising: a moisture sensor probe whose surface is marked with graduated lines, text or other markings, whereby the probe may be inserted to calibrate the sensitivity or the dry/moist threshold value of the sensor to a defined level. | 06-04-2009 |
20090199616 | SYSTEMS AND METHOD FOR MONITORING UREA LEVEL - A sensor diagnostic system comprises first, second, and third dosing agent sensors and a control module. The first, second, and third dosing agent sensors indicate whether a dosing agent is present at first, second, and third volumetric levels of a dosing agent tank, respectively. The second volumetric level is greater than the first volumetric level and the third volumetric level is greater than the second volumetric level. The control module selectively diagnoses a sensor fault in at least one of the first, second, and third dosing agent sensors based on the indications of the first, second, and third dosing agent sensors. | 08-13-2009 |
20090205402 | MEASURING LIQUID FLOW RATE FROM A NOZZLE - An apparatus for measuring a rate of liquid flow through a spray nozzle includes a container with an opening in a top thereof adapted to receive a liquid discharge from a spray nozzle. A level sensor comprises an electrical capacitor oriented substantially vertically in the container and configured such that as liquid rises in the container, a capacitance of the capacitor changes. A processor circuit is connected to the capacitor and is operative to measure the change in capacitance of the capacitor and convert the change in capacitance into a rate of liquid flow into the container, and a display is operative to display the rate of liquid flow. The apparatus is applicable to an agriculture or industrial application whereby an operator can periodically check the flow to determine wear or plugging of a spray nozzle. | 08-20-2009 |
20090260414 | METHOD OF CALIBRATING MEASUREMENT SYSTEMS - There is provided a method of calibrating a measurement system for measuring a position (h) of a meniscus of a liquid fuel included within a marine fuel tank and therefrom generating a corresponding content signal indicative of a proportion of the tank filled with fuel. The method includes steps of: (a) from a first time instance when the tank is substantially empty, filling during a calibration phase the tank with the fuel at a substantially constant rate whilst simultaneously recording corresponding values (h(t)) of a meniscus position indicative signal generated by the measurement system; (b) at a second time instance after said first time instance, terminating filling of the tank with fuel when the position indicative signal corresponds to the tank being substantially filled with fuel; and (c) subsequently, after the calibration phase, applying signal processing to the position indicative signal to generate the content signal indicative of the proportion of the tank filled with fuel, the signal processing accounting for the tank during the calibration phase being filled at the substantially constant rate. | 10-22-2009 |
20090282892 | METHOD AND APPARATUS FOR REAL-TIME CALIBRATION OF A LIQUID STORAGE TANK LEVEL GAUGE - A system and method are provided that receive a signal representing a reflection of an electromagnetic wave from a liquid and from one or more reference pins in a storage tank. A sensed distance to the liquid and one or more sensed distances to the pins are calculated from the signal, and the sensed distances to the pins are compared to one or more reference distances. A correction factor is calculated based on the comparison of the sensed distances and the reference distances, and a corrected distance to the liquid is calculated based on the correction factor and the sensed distance to the liquid. While the storage tank is empty, a reference signal representing a reflection of an electromagnetic wave from the reference pins may be obtained and reference sensed distances to the reference pins calculated and stored as the reference distances. | 11-19-2009 |
20100037673 | APPARATUS AND METHOD FOR MONITORING TANKS IN AN INVENTORY MANAGEMENT SYSTEM - A method includes lowering a sensor unit in a tank, where the tank is capable of receiving a material. The method also includes determining a first distance between the material and the sensor unit and determining a second distance between the sensor unit and a main unit that lowers the sensor unit. In addition, the method includes determining a level of the material in the tank using the first and second distances. The method could further include calibrating the sensor unit to compensate for variations in a medium within the tank, where the sensor unit transmits wireless signals through the medium to determine the first distance. Determining the first distance could include using an ultrasonic measurement technique, and determining the second distance could include using a non-contact servo measurement technique. | 02-18-2010 |
20100212397 | Method and Apparatus for Forming the Calibration Chart for the Underground Fuel Tanks - The invention relates to the method and apparatus for forming the calibration chart used to measure the amount of fuel inside the fuel tanks ( | 08-26-2010 |
20110277533 | SYSTEM AND METHOD FOR DETERMINING A VOLUME OF A TORQUE CONVERTER CLUTCH AND CALIBRATING A TRANSMISSION - A system for calibrating a transmission includes a slip generation module, a volume determination module, and a calibration control module. The slip generation module generates transmission slip. The volume determination module, after the transmission slip has been generated, applies a torque converter clutch (TCC) and determines a volume of the TCC based on a period for the TCC to fill with hydraulic fluid. The calibration control module generates a calibrated volume based on the determined volume and calibrates a control module based on the calibrated volume, wherein the control module controls the transmission. | 11-17-2011 |
20120073354 | APPARATUS AND METHODS FOR AUTOMATICALLY TESTING A SERVO GAUGE IN AN INVENTORY MANAGEMENT SYSTEM - A method includes initiating a test of a servo gauge by causing the servo gauge to attempt to move a displacer of the servo gauge, where the servo gauge uses a drum to move the displacer in a tank. The method also includes measuring a torque associated with the drum during or after the attempt to move the displacer and identifying a mechanical problem with the servo gauge based on the measured torque. For example, a stuck displacer can be identified when the measured torque exceeds an upper expected value. A lost displacer or a stuck drum can be identified when the measured torque is below a lower expected value. | 03-29-2012 |
20120167660 | Self-Calibrating Capacitive Transducer for Determining Level of Fluent Materials - A capacitive transducer for detecting the level of liquids and other materials has one or more antenna probes connected to an integrated chip normally associated with touch-screen displays. Each antenna probe operates independently and senses the level condition of wet or dry flowable materials such as water, oil, fuel, grain, and so on. The antenna probes may be formed as insulated conductive wires or conductive traces between layers of a stiff or flexible substrate, such as a PCB, with the substrate material serving as the insulating layers. Each antenna probe has a different length representing different depths of the material being measured to provide dynamic calibration of the level condition independent of the material type and ambient conditions. | 07-05-2012 |
20120234074 | MEASUREMENT DEVICE AND METHOD FOR DETERMINING A FLUID FILL LEVEL IN A FUEL TANK - The invention relates to a measurement device ( | 09-20-2012 |
20120304732 | Method and Device for Testing a Capacitively Operating Measuring Device, Which Is Designed for the Detection of Phase Boundaries, and Correspondingly Equipped Laboratory Apparatus - A device has at least one channel for detecting the phase boundary between media in a liquid container and has a probe which can be fed in the direction of the phase boundary and a circuit which processes a signal of the probe to detect a capacitance change. The device includes a testing module which executes an infeed movement of the probe. The testing module performs an analysis of the signal of the channel, and makes a connection statement about the electrical connection between the probe and the measuring circuit. The testing of the electrical connections is performed in a dry manner, i.e., a phase boundary does not have to be searched for or penetrated for the testing. | 12-06-2012 |
20130167613 | Devices and Systems for Liquid Level Detection in Hematology Instruments, and Methods Related Thereto - A hematology instrument with liquid level detection for liquid in a container is provided. The hematology instrument includes a probe disposed next to a container site. The probe is displaceable relative to the container site to enter a container when positioned at the container site. Further, the probe is electrically grounded. The hematology instrument includes a capacitive sensor having at least one capacitive electrode disposed next to the container site. The capacitive sensor also has a detection module to detect capacitive changes at the at least one capacitive electrode when the probe contacts liquid in the container. The hematology instrument also includes a calibration module configured to calibrate the capacitive sensor a plurality of times as the probe displaces relative to the container site to enter the container. Kits and methods related thereto are also provided. | 07-04-2013 |
20130174637 | Ultrasonic Reactor Water Level Measuring Device and Evaluation Method - An ultrasonic reactor water level measuring device and an evaluation method are provided and prevent a reduction in the measurement accuracy of a water level that is in a wide measurement range. The ultrasonic reactor water level measuring device includes an upper tube extending from a gas phase portion in a reactor, a lower tube extending from a liquid phase portion in the reactor, measurement tubes connected to each other and arranged at multiple stages between the upper tube and the lower tube, and units for generating and receiving ultrasonic waves, the units being arranged at bottom portions of the measurement tubes. The ultrasonic reactor water level measuring device measures levels of water within the measurement tubes and calculates a water level within the reactor from the sum of the measured water levels, the sum excluding an overlapped part of the measurement tubes. | 07-11-2013 |
20130233047 | LIQUID CONSUMPTION DEVICE AND LIQUID RESIDUAL DETERMINATION METHOD - A liquid consumption device includes a replaceable liquid container, a sensor, a fault finding section, an estimation section and a determination section. The sensor detects whether or not liquid has reached a predetermined amount. The fault finding section finds whether there is a fault in the sensor. The estimation section calculates an estimated value of a consumption amount of the liquid. The determination section carries out determination based on the estimated value of the liquid container and a threshold value which is specified based on threshold value information when a fault in the sensor has been found. The determination section carries out the determination based on the sensor when a fault in the sensor has not been found and to calculate the threshold value information based on the estimation value when the sensor detects that the liquid has reached the predetermined amount. | 09-12-2013 |
20130269414 | Method and apparatus for orienting a measuring device - A measuring device featuring ascertaining and monitoring optimized orientation of the measuring device. Thus, the invention provides a measuring device for determining and/or monitoring limit level or fill level of a medium in a container, comprising at least one sensor unit and a measurement transmitter unit, wherein at least one inclination sensor is integrated in the measuring device for ascertaining orientation of the measuring device and/or the sensor unit on the container | 10-17-2013 |
20140047896 | Apparatus and method for correcting an offset - An offset determination apparatus and a method are for correcting an offset by supplying a switch-off signal outside a predefinable measuring range of time-expanded sampling values of a reflection signal, which switch-off signal can deactivate a transmitter device at least intermittently in order to generate a predefinable quiescent range within the time-expanded sampling values of the reflection signal and in that, by evaluating at least one sampling value of the time-expanded sampling values which is determined within the quiescent range, a value of an amplitude offset of the time-expanded sampling values of the reflection signal from a normal value is determined and is supplied at an output of the offset provision device. | 02-20-2014 |
20140137631 | VAPOR ELIMINATION LIQUID PROVING SYSTEM WITH TOP FILL AND BOTTOM DRAIN PROVER - A liquid proving system is provided with a small volume liquid prover draining into a liquid holding tank that has capacity for multiple proving measurements. The small volume liquid prover is top-filled and bottom-drained. A liquid holding tank baffle assembly contains saturated vapor from an initial number of fills of the liquid holding tank within the small volume prover to improve overall accuracy of the proving measurements. When liquid is pumped into the prover evaporation of the liquid being pumped into the prover, and release of vapors from the prover and into the entire holding tank, is inhibited due to the saturated vapor environment established by a saturated vapor volume in the prover, which results in a more accurate prover measurement of liquid pumped into the prover. The saturated vapor volume is contained with a vapor tank baffle assembly in the liquid holding tank; a vapor conduit connecting the interior of the liquid holding tank to the interior of the prover; and the interior volume of the prover. | 05-22-2014 |
20140137632 | DEVICE FOR CHECKING THE CALIBRATION OF CATCHING INSTRUMENTS MEASURING RAINFALL INTENSITY | 05-22-2014 |
20140260520 | Fuel Level Sensor - An electronic fuel sensor which utilizes the characteristics of fluid (such as gasoline) to dissipate heat more readily than a gas. Specifically the fuel sensor utilizes a linear array of sensors comprising a couple heat detector and heat source which can determine which of the sensors are in fluid and which are in air. | 09-18-2014 |
20140260521 | METHOD AND APPARATUS FOR IN-SITU CABLIBRATION AND FUNCTION VERIFICATION OF DIFFERENTIAL TEMPERATURE FLUID LEVEL SENSOR - An in-situ method and apparatus for calibrating and verifying the operational accuracy of a fluid level sensor. | 09-18-2014 |
20140298885 | GAUGING METHOD FOR A PLASTIC FUEL TANK OF A HYBRID VEHICLE - A gauging method for a plastic fuel tank mounted on a hybrid vehicle, the tank including a reservoir including a gauge for measuring an amount of fuel in the tank, the method including: measuring the amount of fuel in the tank using the gauge; estimating deformation of the tank using at least one sensor onboard the vehicle; and correcting the amount measured by the gauge based on the estimated deformation. | 10-09-2014 |
20140326037 | Measuring Apparatus and Measuring Method - Provided are a measuring apparatus and method for obtaining a measurement value from a response to a signal applied to a sample, wherein the measuring apparatus includes a first measuring unit that measures a first electric response to a first signal that is input to a first pair of electrodes that can come into contact with a sample, a second measuring unit that measures a second electric response to a second signal that is input to a second pair of electrodes that can come into contact with the sample, the second signal changing its value from a first level to a second level and thereafter maintaining the second level for a certain period of time, as a peak value of a response signal with respect to the change in the second signal, and a control unit that corrects a value indicating the amount of a measuring target component of the sample, the value being obtained from the first electric response, based on the peak value of the response signal. | 11-06-2014 |
20140326038 | In Situ Calibration of a Level Measuring Device - A calibration system for a level meter comprising a tank having a sidewall and a bottom defining a tank interior, and a stilling well coupled to said tank, said stilling well having a sidewall, proximal and distal ends and a stilling well interior, and the distal end in fluid communication with the tank interior near the tank bottom, said proximal end of said stilling well being sealingly coupled to said level meter, said stilling well having a calibration fluid path allowing fluids to flow out of said stilling well interior; said stilling well having a vent opening that is sealingly closable near said proximal end; and a source of pressurized gas connectable to said stilling well interior, said stilling well having a measurement configuration where said vent opening is opened allowing said proximal end to vent gases in said stilling well interior, and a calibration configuration, where said pressurized air source is connected to said stilling well and flowing into said stilling well interior, where said pressurized gas may exit said stilling well interior only at said calibration flow path. | 11-06-2014 |
20140352402 | FILL LEVEL MEASURING DEVICE - Fill level measuring device having a control unit, which contains a high-frequency generator for generating a transmission signal, an amplifier, an amplifier and an evaluation unit, and a spatially remote probe, which contains a measuring impedance, a reference impedance, a first rectifier and a second rectifier, as well as a connecting line between the control unit and the probe, wherein the rectifier detects the voltage of the transmission signal in the probe, and this voltage is transmitted to the control unit as a first DC voltage signal, and the rectifier converts the probe current in the probe into a second DC voltage signal via measuring resistors, and both signals are supplied to the control unit for the purpose of determining the fill level, wherein the rectifiers are thermally coupled to one another. | 12-04-2014 |
20150013428 | CONNECTOR MOUNTING STRUCTURE, MOUNTING-RESULT INSPECTION TOOL, AND MOUNTING-RESULT INSPECTION METHOD - A connector is used to bring a harness from a level sensor that is arranged in the oil pan and detects a level of oil in the oil pan, out of the oil pan. The connector includes a contact that is electrically connected to the level sensor, and a housing that retains the contact. The housing includes a housing portion that is housed in the connector mounting hole, and a clip attaching groove and a flange portion that are arranged sandwiching the housing portion. A clip and the flange portion sandwich the oil pan, such that the connector is attached to the oil pan, by the housing portion being housed in the connector mounting hole, and the clip being attached to the clip attaching groove. | 01-15-2015 |
20150027201 | Multi-Chamber Calibration Cup For Gauging A Food Product Dispensing Device - A calibration cup for use in calibrating a quantity of a dessert dispensed from a product dispensing machine includes a body portion having an interior cavity, the interior cavity including a first chamber adjacent to at least a second chamber being disposed along a longitudinal width of the body portion, the first and the at least one second chamber being configured for receiving a quantity of the dessert from the product dispensing machine; and at least one opening on the body portion, the at least one opening being configured for receiving a nozzle coupled to the product dispensing machine; where the body portion is configured for self-aligning the first chamber and the at least a second chamber to the product dispensing machine. | 01-29-2015 |
20150047413 | ANALYSIS - A method of verifying the performance of a size standard, formed of a plurality of size standard elements, used in a nucleic acid analysis method is provided. The verification is achieved by introducing the size standard to an analysis stage and performing a size based separation on the size standard. The size based separation defines an experimental position for each size standard element. A comparison is made as to whether or not the experimental position for the size standard element corresponds with expected position. The comparison allows a decision to be made on whether or not to use the size standard, which is dependent upon whether or not the experimental position of the size standard element corresponds with the expected position. | 02-19-2015 |
20160003666 | METHOD AND SYSTEM FOR FILTERING NOISE OF LIQUID LEVEL MEASUREMENTS FROM A RESERVOIR - The method generally has the steps of: measuring a measured liquid level value in a reservoir; generating a filtered liquid level value including applying a first noise filtration stage to the measured liquid level value to limit the change of the filtered liquid level value compared to previous liquid level value measurements; determining a variation of the generated filtered liquid level value over a given period of time; comparing the determined variation to a threshold value; when the determined variation is above the threshold value, entering a sloshing mode, the sloshing mode including generating an outputted liquid level value corresponding to a filtered liquid level value generated prior to entering the sloshing mode, the sloshing mode being maintained until the determined variation is below the threshold value; and when the determined variation is below the threshold value, generating an outputted liquid level value corresponding to the filtered liquid level value. | 01-07-2016 |
20160033318 | EDDY CURRENT MOLD LEVEL MEASURING DEVICE AND MOLD LEVEL MEASURING METHOD - The measuring device includes: a detecting section including a coil which detects a change in a value of impedance caused by a change in a mold level; an amplifying section which amplifies an output of the detecting section; a pre-pouring calibration section which determines a reference value of a positive feedback ratio of the amplifying section in environmental conditions before pouring of molten metal; and a mold oscillation signal calibration section which obtains a standard value of difference in an output of the measuring device, the standard value of difference corresponding to a known value of amplitude of mold oscillation when the positive feedback ratio is the reference value, obtains a deviation of measurement based on a difference between the maximum value and the minimum value of the output in mold oscillation and the standard value, and corrects the positive feedback ratio within a predetermined range including the reference value. | 02-04-2016 |
20160041025 | REMOVABLE MAGNETOSTRICTIVE PROBE WITH AUTOMATIC CALIBRATION - A magnetostrictive sensing instrument comprises a probe including a tube having a near end and a distal end. A magnetostrictive wire is in the tube. An adaptor at the tube near end includes a probe circuit comprising a drive circuit for the magnetostrictive wire, a pickup sensor, a preamplifier and a memory circuit storing calibration parameters for the probe. An instrument housing includes a control circuit. A connector is operatively disposed between the instrument housing and the adaptor and comprises electrical conductors for connecting the control circuit to the probe circuit. | 02-11-2016 |
20160047687 | SELF-CALIBRATING ULTRASONIC-BASED MONITORING SYSTEM - Systems, methods, and devices for determining distances inside a liquid filled container such as an oil tank. A combined ultrasonic signal receiver/transmitter with an attached reflector is immersed in the liquid. An ultrasonic signal is then transmitted from the receiver/transmitter and reflected ultrasonic signals are then received. One of the reflected signals is reflected off of the attached reflector and this reflected signal is then used to determine the signal's velocity and to thereby self-calibrate the system. Once the velocity in the liquid is known, the other reflected signals can then be used to determine the distance between the receiver/transmitter and at least one point of interest in the container. | 02-18-2016 |
20160061646 | METHOD OF CALIBRATING A LEVEL SENSOR - A method of calibrating a level sensor is provided. The level sensor includes a tube, a lower part of which communicates with a liquid volume, an upper part not being filled with the liquid; and a device for measuring a level of the free surface of the liquid along the tube. The method includes placing the upper part of the inner space at a predetermined pressure; computing a theoretical level of the surface of the liquid; acquiring the measured level measured by the measuring device; comparing the theoretical level and the measured level; and repeating the steps for computing a theoretical level, acquiring a measured level and comparing the theoretical and measured levels after placing the upper part of the inner space at least at a second predetermined pressure. | 03-03-2016 |
20160138964 | Method for Calibration or Adjustment of any Oscillatable Unit - A method for calibration or adjustment of any oscillatable unit with a mathematical model describing the oscillatable unit, wherein the oscillatable unit interacts with a medium located in a container, comprising the steps as follows: exciting the oscillatable unit via a real input signal to execute oscillations; the real output signal of the oscillatable unit is ascertained; the real output signal is digitized and a real output sequence is produced; the real input signal is digitized and a digital input sequence is produced; the digital input sequence is fed to a function block, which provides the mathematical model of the oscillatable unit in interaction with the medium. The mathematical model is defined by at least two sensor-specific variables; a virtual output sequence is produced via the mathematical model. The virtual output sequence is compared with the real output sequence; in the case of a deviation, the sensor-specific variables of the mathematical model are adaptively changed, until the deviation between the virtual output sequence and the real output sequence of the oscillatable unit lies within a predetermined tolerance range. | 05-19-2016 |
20190143316 | ENCODED MEDIA FOR DISPENSING LOCATION | 05-16-2019 |
073100740 | Volumetric dispenser (e.g., pipette) | 12 |
20080223108 | Pipette and sealing mechanism for plunger - A pipette includes a tubular body ( | 09-18-2008 |
20090000350 | Hybrid manual-electronic pipette - A hybrid manual-electronic pipette combines a manually driven piston with real-time electronic measurement of liquid volume and piston displacement while compensating for both pipette-specific and pipette model-specific variations. The hybrid nature of the pipette facilitates increased accuracy and improved ease of use, and enables additional functionalities not practicable with traditional manual pipettes. | 01-01-2009 |
20090000351 | Hybrid manual-electronic pipette - A hybrid manual-electronic pipette combines a manually driven piston with real-time electronic measurement of liquid volume and piston displacement while compensating for both pipette-specific and pipette model-specific variations. The hybrid nature of the pipette facilitates increased accuracy and improved ease of use, and enables additional functionalities not practicable with traditional manual pipettes. | 01-01-2009 |
20090007628 | Method for checking the condition of a sample when metering liquid - A method for controlling the dispensation of a liquid volume sample when metering amounts of liquid by sucking into a tube, probe or tip a volume of a liquid to be displaced and ejecting the sample to a different vessel. According to the method the metering act is performed normally and the liquid to be metered is, displaced thereafter in a desired vessel. During the metering act and after a desired amount of liquid is sucked into the metering line, a supplementary suction step is performed wherefrom the success of the metering act can be deduced. The pressure function of the supplementary suction step is measured and this function is compared with a calibration function. | 01-08-2009 |
20090211332 | Calibratable Pipette - The invention relates to a pipette having a piston and a barrel with variable diameter at least in the portion passing by the sealing point. | 08-27-2009 |
20090288470 | METHOD OF CONTROLLING A PIPETTING PROCESS - A method of controlling a pipetting process for a liquid by the use of a pipetting device is suggested, the pipetting process including a calibration process and a dosing process being performed in accordance with a set of process variables wherein, before starting the dosing process for the liquid, the calibration process is carried out to determine the set of the process variables specifically for the liquid, the calibration process comprising the steps of: performing a preliminary dosing process for the liquid using a predefined reference set of the process variables, detecting a preliminary time characteristic of at least one state variable of a medium present in the pipetting device during the preliminary dosing process, and comparing the detected preliminary time characteristic of the state variable with a reference time characteristic of the state variable obtained in advance by performing a dosing process for a predefined reference liquid using the reference set of process variables. In the calibration process according to the comparison between the preliminary time characteristic of the state variable with a reference time characteristic of the state variable a new set of process variables is created which is to be used for dosing the liquid specifically. Preferably, also the volume of liquid dosed in the preliminary dosing process and/or the dosing process is detected and compared with a target volume. | 11-26-2009 |
20100139361 | CALIBRATION ARRANGEMENT FOR AN APPARATUS THAT PREPARES A BEVERAGE FROM WATER AND AN INSTANT PRODUCT - The invention relates to a calibration arrangement ( | 06-10-2010 |
20110000276 | METHOD FOR CHECKING THE STATE OF A PIPETTE, PIPETTING METHOD, PIPETTING DEVICE, AND SUCTION TUBE FOR A PIPETTING DEVICE - The invention relates to a method for checking the state of a pipette, which comprises a suction tube and a pipette tip. According to the invention, ultrasound is coupled into the wall of the suction tube and the damping of the ultrasonic signal is measured as a function of the frequency. The measured frequency-dependent damping is compared with at least one reference measurement or a calibration curve based on the reference measurements, in order to determine whether the pipette is in a functional condition and/or whether the pipette contains or has made contact with fluid. Furthermore, the invention relates to a pipetting method, which uses the inventive method for checking the state, a suction tube arrangement for a pipetting device for pipetting fluid and a pipetting device, with which the inventive methods can be carried out. | 01-06-2011 |
20130283884 | HIGH RESOLUTION PIPETTE - A pipette includes a movable piston and a diaphragm that at least partly defines a fluid chamber enclosing a volume of working fluid. The piston displaces a volumetric amount of the working fluid in the chamber when moved. In response, the diaphragm displaces a smaller volumetric amount of fluid outside the chamber. A deamplification ratio is defined by the ratio of the volume displaced by the diaphragm to the volume displaced by the piston. The deamplification ratio is adjustable by adjusting or changing the diaphragm and/or by adjusting the size of the fluid chamber. The deamplifying pipette enables measuring and dispensing of very small volumes of liquid and is easily adapted to commercially available pipette components. Pipette components such as a pipette tip or adaptor may include a diaphragm to enable deamplification of the nominal volume capacity of a given pipette device. | 10-31-2013 |
20140150522 | Dispensed Liquid Measurement Device - A measurement device containing one or more capillaries to measure the volume of a dispensed fluid and determine the volumetric accuracy of the dispensing device. The measurement device can contain a reservoir containing the fluid to be measured and there may be an additional reservoir for a secondary fluid. A viewing window is necessary to complete a manual measurement and may include a magnifying lens. The liquid well by the capillary inlet may be shaped such that the measurement fluid is directed toward the capillary. The well may have features designed to position the dispensing device toward the capillary, or to position the well proximal to the capillary after it is filled. The well may also have surfaces or coatings which attract or do not attract various types of substances. The measurement device may interface with sensors to output measurement data. | 06-05-2014 |
20140208824 | Calibration System and Method - The invention regards a method for calibrating a sample distribution apparatus for distribution of liquid samples (e.g. a hand held pipettor or a pipetting robot). The method comprises the steps of transferring a volume of liquid from the sample distribution apparatus to a container with a temperature sensor, measuring a first temperature value via, the temperature sensor, changing, the temperature of the liquid in the container, measuring a second temperature value via the temperature sensor, and determining from the first and second temperature values the volume of the liquid in the container. | 07-31-2014 |
20160250628 | BALANCE FOR CALIBRATING PIPETTES | 09-01-2016 |