Class / Patent application number | Description | Number of patent applications / Date published |
073100590 | With signal correction or processing | 19 |
20090199615 | INSPECTION SYSTEM FOR PRESSURE TRANSMITTING DEVICE OF PLANT - A pressure transmitting device inspection system for a plant includes a gauge calibration terminal used for inspection of a pressure transmitting device of a plant, a determining unit which automatically downloads a gauge specification of the pressure transmitting device, monitors an applied pressure, automatically collects inspection data and automatically determines an inspection result, a remote server for gauge calibration which generates a result sheet based on the determination result, and a control unit for centrally controlling the gauge specification, the inspection result and an inspection history. | 08-13-2009 |
20120247175 | METHOD AND SYSTEM TO COMPENSATE FOR TEMPERATURE AND PRESSURE IN PIEZO RESISTIVE DEVICES - A method and system to calibrate temperature and pressure in piezo resistive devices for non-linear sensors having two variables, where a piezo resistive device such as a piezo resistive transducer (PRT) used for example in a pressure sensor system is calibrated to calculate actual/ambient temperature and pressure even though the PRT impedance is unbalanced relative to pressure. | 10-04-2012 |
20140102169 | Calibration Method of Air Pressure for a Mobile Device, Calibration Device, and Mobile Device - A calibration method of air pressure for a mobile device, a calibration device and a mobile device, where the calibration method includes acquiring self-location data of the mobile device; acquiring air pressure information from a web site or a web service according to the self-location data; performing calibration of air pressure for the mobile device by using the air pressure information. Through the embodiments of the present invention, dynamic calibration of air pressure is performed; furthermore, another barometer is not needed in the mobile device. | 04-17-2014 |
20140182353 | METHOD AND SYSTEM TO COMPENSATE FOR TEMPERATURE AND PRESSURE IN PIEZO RESISTIVE DEVICES - A method and system to calibrate temperature and pressure in piezo resistive devices for non-linear sensors having two variables, where a piezo resistive device such as a piezo resistive transducer (PRT) used for example in a pressure sensor system is calibrated to calculate actual/ambient temperature and pressure even though the PRT impedance is unbalanced relative to pressure. | 07-03-2014 |
20140238103 | PRESSURE SENSOR WITH INTEGRATED HEALTH MONITORING AND COMPENSATION - A pressure sensor may measure gas or liquid pressure. A chamber may have an inlet that receives the gas or liquid. A flexible diaphragm may be within the chamber that has a surface exposed to the gas or liquid after it flows through the inlet. A pressure sensor system may sense changes in the flexible diaphragm caused by changes in the pressure of the gas or liquid. A pressure-insensitive sensor system may sense changes in the flexible diaphragm that are not caused by changes in the pressure of the gas or liquid. The pressure-insensitive sensor system may be insensitive to changes in the flexible diaphragm caused by changes in the pressure of the gas or liquid. | 08-28-2014 |
20140331739 | METHOD AND SYSTEM FOR SETTING OFFSET OF OIL PRESSURE SENSOR - A technique for setting offset of a hydraulic pressure sensor which senses operation oil pressure is provided herein. In particular, ignition-off is detected and an ignition-off time point and remaining pressure of the object to be sensed are stored. The remaining pressure is sensed by the hydraulic pressure sensor at the ignition-off time point and stored accordingly. Additionally, whether an ignition is turned on or not after the ignition-off is also detected and an ignition-on time point is stored, when the ignition-on is detected after the ignition-off. A time lapse between the ignition-on from the ignition-off time point is then calculated along with the reduced pressure corresponding to the time lapse due to the time lapse. As a result, a value obtained by subtracting the reduced pressure from the remaining pressure of the hydraulic pressure sensor is set and applied as the offset of the hydraulic pressure sensor. | 11-13-2014 |
20150052969 | Calibrating a Device - The present disclosure involves methods, systems and computer program products for calibrating a measuring device to ensure that its overall accuracy is improved. The method includes generating a profile of a first and second device. The profiles may be generated using one or more profiling scenarios. The method includes comparing a profile of the second device against a profile of the first device, automatically adjusting the profile of the second device such that it substantially matches the profile of the first device, and transferring the adjusted profile to the second device. The transferring of the adjusted profile to the second device causes the second device to provide substantially the same output as the first device in response to the same input parameter. | 02-26-2015 |
20150135798 | METHOD FOR ASCERTAINING AN OFFSET OF AN OUTPUT SIGNAL OF AN EVALUATION CIRCUIT INTEGRATED IN A SENSOR, PREFERABLY OF A PRESSURE SENSOR INSTALLED IN A COMBUSTION CHAMBER OF AN INTERNAL COMBUSTION ENGINE, AND SENSOR - In a method for ascertaining an offset of an output signal of an evaluation circuit integrated in a sensor, the output signal is supplied to a control unit which analyzes the output signal, and a reset of the evaluation circuit for the adjustment of the output signal to a base level is performed prior to each measuring operation of the sensor, and the control unit ascertains the offset of the output signal of the evaluation circuit upon an occurrence of a start signal output by the evaluation circuit. | 05-21-2015 |
20150308913 | UNKNOWN - The invention relates to a device for monitoring a probe for measuring the pressure of a flow; the probe comprising an internal volume; the device comprising: an acoustic transmitter and receiver, connection means intended to connect the device to the probe, for the transmitter to transmit an acoustic signal in the internal volume and for the receiver to pick up an acoustic signal in the internal volume. The device also comprises an electronic module comprising: an audio transmission and reception circuit, linked to the transmitter and to the receiver by analog link, a non-erasable memory comprising a digital encryption key, an erasable read-only memory, a digital communication interface, configured to transmit or receive digital signals between the outside of the device and the audio circuit, the non-erasable memory and the erasable read-only memory. | 10-29-2015 |
20160018281 | Selfcalibration of Capacitive Pressure Sensors with Electrostatic Forces - A pressure sensor calibration system comprises one or more pressures sensors for calibrating sensor parameters based on a membrane deflection or a membrane displacement from an electrostatic force. A measuring component measures capacitance values corresponding to applied voltages at the electrodes of the one or more pressure sensors. Sensor parameters are derived from capacitance measurements and a pressure measurement, which are utilized by a calibration component for calibration and recalibration of the one or more pressure sensors. | 01-21-2016 |
20160109259 | BAROMETRIC CALIBRATION OF USER EQUIPMENT - Techniques of barometric calibration of altitude determination by user equipments in a mobile communications network are discussed. In various embodiments, for a plurality of the user equipments, at least one subset of the user equipments is established. Barometric calibration data is determined for the established at least one subset and sent to the user equipments. | 04-21-2016 |
073100630 | With reference source or attachment therefor | 8 |
20080236243 | Pressure Monitor Optimization of Fluid Path Utilization - A device comprising a pressure monitor and a control means that receives a signal representing measured pressure at the pressure monitor and controls the controllable elements of a fluid system is utilized to monitor a fluid system for error conditions, to optimize operations and to diagnose the fluid system. By following a testing protocol that selectively enables parts of the system, the control means narrows the list of possible failing components. Comparing the measured pressure against normal pressures allows the device to identify error conditions. Determining the volume of fluid being transported and controlling the duration of the flow optimizes operation of the fluid system. | 10-02-2008 |
20090293584 | SENSOR ASSEMBLY AND METHOD - Described herein is the sensor assembly and method for rapidly obtaining accurate readings of a variable. The sensor assembly comprises a plurality of sensors which are connected to a microcontroller that processes the signals of the individual transducers to the microcontroller. The microcontroller contains software that maximizes the refresh rate and/or minimizes the time it takes to process the outputs of each of the transducers. The microcontroller that is coupled to the sensor assembly selectively measures the outputs of each transducer so as to speed up the refresh rate of the sensor. | 12-03-2009 |
20130125613 | Blood Pressure Monitor Calibration - A blood pressure monitor, particularly of the type having an inflatable cuff communicating with a pressure sensor and suitable for home use, may be calibrated by applying a sealed canister containing gas at a known pressure to a port so as to apply the known pressure to the pressure sensor, and comparing a pressure signal from the pressure sensor with the known pressure so as to determine a calibration error of the sensor and/or adjust the calibration of the sensor, e.g. by electronically adjusting the sensor. Several canisters may be used to calibrate the sensor across a range of pressures, each canister having a different known pressure. Each canister is preferably ruptured when attached to the port and is not re-usable, and may comprise an identifier such as an electronically readable identifier which is stored in a memory in association with the value of the known pressure within the canister. Temperature sensing means may be provided whereby the pressure reading is adjusted to compensate for temperature, e.g. of the gas released from the canister. The monitor may comprise means for sensing mechanical shock and alerting a user or remote monitoring personnel to provide an indication that recalibration is required. | 05-23-2013 |
20140165692 | ONLINE SENSOR CALIBRATION FOR ELECTROHYDRAULIC VALVES - An online method for reconfiguring pressure and position sensors in a hydraulic system is disclosed. In one step, a sensor drift condition, a recalibration request, or an unisolated fault condition is detected. In another step, a system pressure sensor or another sensor, such as a load-sense pressure sensor, is verified as a trusted master reference sensor. Another step includes measuring and recording a first pressure reading at the master reference sensor and first voltage readings associated with first, second, third, and fourth pressure slave sensors at a first pump pressure set point. Another step includes, repeating the previous step at a second pump pressure set point. A new gain and offset for each of the first, second, third, and fourth pressure sensors can be calculated based on a comparison of the recoded first and second pressure readings and the recorded first and second voltage readings. | 06-19-2014 |
20140182354 | MULTI-RANGE FIELD FULL-AUTOMATIC PRESSURE AND ELECTRIC SIGNAL CALIBRATION INSTRUMENT - A multi-range on-site full-automatic pressure and electric signal calibration instrument includes a housing, a power switch, a plurality of interfaces, a display, a keyboard, a gas pressure generation unit, a power supply unit, a pressure detection unit, a gas pressure control unit and an electric signal detection unit. A pressure output port of the pressure control unit is in parallel connection with pressure connectors used for installation of a plurality of pressure standard devices with different ranges and a calibrated gauge. The pressure control unit is in signal connection with the pressure standard device. The electric signal detection unit is in signal connection with the pressure control unit and the calibrated gauge; and the power supply unit can supply power by batteries. The calibration instrument does not need to be externally connected with a gas cylinder or an alternating current power supply. | 07-03-2014 |
20140298884 | SELF-CALIBRATING PRESSURE SENSOR SYSTEM WITH PRESSURE SENSOR AND REFERENCE SENSOR THAT SHARE COMMON SEALED CHAMBER - A self-calibrating pressure sensor system may measure the pressure of a gas or liquid. The system may include a pressure sensor, a reference sensor, and a drift compensation system. The pressure sensor may include a pressure-sensing flexible diaphragm with one side exposed to the gas or liquid and another side forming a wall of a sealed chamber. The reference sensor may include a reference flexible diaphragm that has two sides that are both within or exposed to the same sealed chamber. The drift compensation system may produce information that is indicative of the pressure of the gas or liquid based on the signal from the pressure sensor, and compensate for drift in this signal based on changes in the signal from the reference sensor. The pressure-sensing flexible diaphragm and the reference flexible diaphragm may be made at substantially the same time by depositing or growing a single layer of material in a single continuous step. | 10-09-2014 |
20150075251 | DETECTING PRESSURE SENSOR OFFSET IN A PHEV FUEL TANK - A method for determining pressure sensor offset values in an evaporative emission control system. The method is performed during initial vehicle power up, and the method begins by receiving a reference signal indicating existing atmospheric pressure, as well as a check signal from a fuel tank pressure sensor indicating pressure within the fuel tank, at a time when the fuel system is open to atmosphere. A controller then calculates a sensor offset value based upon the reference signal and the check signal, and the controller stores the sensor offset value in a system memory location. During operation of the evaporative emission control system, the controller modifies pressure values received from the fuel tank pressure sensor by applying the sensor offset value. Whenever the system employs a reading from the fuel tank pressure sensor, that reading is corrected by applying the stored offset value. | 03-19-2015 |
20150323409 | MULTI-RANGE ON-SITE FULL-AUTOMATIC PRESSURE CALIBRATION INSTRUMENT - Provided is a multi-range field full-automatic pressure and electric signal calibrating instrument, comprising: control components such as a shell, a power switch, multiple-interfaces, a display, a keyboard, and a gas pressure generating unit, a power supply unit, a pressure detecting unit, a gas pressure control unit and an electric signal detecting unit; the pressure output end of the pressure control unit is in parallel connection with pressure joints which are used for installing multiple pressure standard meters and detected meters with different ranges; the pressure control unit is in signal connection with the pressure standard meters; the electric signal detecting unit is in signal connection with the pressure control unit and the detected meters; the power supply unit can supply power by batteries. The calibrating instrument does not need to be externally connected with a gas cylinder and an alternating current power supply and can automatically generate a gas pressure and generate an accurate standard pressure; the design of the multi-range pressure standard meter can be suitable for various detected meters; the double detection and calibration for pressure and electric signals can be implemented; the weight and volume of the instrument are small; and the multi-range field full-automatic pressure and electric signal calibrating instrument is convenient to carry in the field and can carry out automatic calibration on various field pressure instruments. | 11-12-2015 |