Patents
Patents for G01L 27 - Testing or calibrating of apparatus for measuring fluid pressure (2,533)
08/1999
08/19/1999DE19831600C1 Pressure sensor groups intactness assessment method
08/18/1999EP0936764A2 Method and apparatus for calibration of digital down converters in a signal processing system
08/11/1999EP0934511A1 Fluid pressure sensing unit incorporating diaphragm deflection sensing array
08/10/1999CA2259671A1 Method and apparatus for calibration of digital down converters in a signal processing system
07/1999
07/20/1999US5925824 Capacitive differential pressure detector
07/13/1999US5922966 Air-pack type contact pressure measuring method
07/08/1999WO1999034187A1 Method and device for monitoring the operation of a pressure sensor
06/1999
06/30/1999EP0925512A1 Method and circuit for monitoring the functioning of a sensor bridge
06/30/1999CN2326950Y Comprehensive calibrator for pressure instrument
06/29/1999US5916180 Calibrating pressure sensors
06/23/1999CN2325768Y Instrument for testing performance of apparatus for utilizing LPG raffinate
06/02/1999DE19752721A1 Manometer, e.g. for monitoring pressure of quick boiling pans.
05/1999
05/25/1999CA2090309C Transducer health and offset calibration processing system
05/20/1999WO1999024804A1 A strain gauge strip and applications thereof
05/11/1999US5902925 System and method for high accuracy calibration of a sensor for offset and sensitivity variation with temperature
05/06/1999WO1999022139A1 Pressure calibration pump apparatus
05/04/1999US5900530 Method for testing pressure sensors
04/1999
04/21/1999EP0909378A2 A system and method for high accuracy calibration of a sensor for offset and sensitivity variation with temperature
04/07/1999EP0906559A1 Impulse line blockage detector systems and methods
03/1999
03/24/1999CN1212052A Pressure sensor diagnostics in process transmitter
02/1999
02/10/1999EP0737043A4 System and method for in vivo calibration of a sensor
01/1999
01/14/1999WO1999001777A1 Method and circuit for monitoring the functioning of a sensor bridge
01/07/1999DE19728381A1 Verfahren und Schaltung zur Funktionsüberwachung einer Sensorbrücke Method and circuit for monitoring the operation of a sensor bridge
12/1998
12/10/1998WO1998040698A3 Hand held measurement instrument with touch screen display
12/09/1998EP0882221A1 Pressure sensor diagnostics in a process transmitter
12/03/1998DE19730991C1 Differential pressure sensor
11/1998
11/17/1998US5837881 Pressure gauge calibrating device
11/17/1998US5836063 Method for producing capacitive ceramic absolute pressure sensors sorted in zero-point long-term stability defect classes
09/1998
09/24/1998WO1998041834A1 Differential pressure transmitter with highly accurate temperature compensation
09/22/1998US5811690 Differential pressure transmitter with highly accurate temperature compensation
09/17/1998WO1998040698A2 Hand held measurement instrument with touch screen display
09/15/1998US5808204 Solving production downtime with parallel low pressure sensors
09/15/1998US5808189 For measuring an intake manifold pressure of an internal combustion engine
09/15/1998US5808176 For adjusting/replacing defective sensor used in semiconductor chambers
09/15/1998US5808175 Solving production down time with parallel low pressure sensors
09/08/1998US5805466 Electronic device
09/08/1998US5804736 Differential capacitive transducer
09/03/1998DE19648719A1 Testing manometric measuring
08/1998
08/27/1998WO1998037395A1 Method and device for measuring fluid pressure
08/20/1998DE19705799A1 Pressure sensor testing or measuring device
08/18/1998US5796008 Pressure gage device having a tube spring associated with a venting valve to adjust a preset
08/11/1998US5793297 Self-monitoring pressure detection apparatus and method
08/04/1998US5788642 In vivo rezero apparatus for a pressure transducer
07/1998
07/01/1998EP0642658B1 Pressure transducer
06/1998
06/18/1998WO1998026267A1 Method of determining a defective pressure sensor
06/18/1998WO1998026266A1 Judgement method of acceptance/rejection of pressure sensor
06/17/1998EP0835430A4 Gravity-induced diaphragm deflection for pressure measurement
06/09/1998US5764654 Semiconductor integrated circuit device having a test circuit
06/09/1998US5764541 Microprocessor controlled sensor signal conditioning circuit
06/03/1998EP0845660A1 Device and method for calibrating a signal
05/1998
05/19/1998US5753820 Fluid pressure sensing unit incorporating diaphragm deflection sensing array
05/07/1998WO1998019145A1 Fluid pressure sensing unit incorporating diaphragm deflection sensing array
04/1998
04/16/1998WO1998015809A1 Semiconductor sensor having diagnostic function and diagnostic method for semiconductor sensor
04/15/1998EP0835430A1 Gravity-induced diaphragm deflection for pressure measurement
03/1998
03/25/1998EP0831313A1 Air pack type contact pressure measuring method
03/25/1998CN1177398A Pressure transmitter with remote seal diaphragm and correction circuit therefor
03/19/1998DE19637140A1 Unit for determining physical size inside sealed room
02/1998
02/19/1998WO1998002721A3 Calibration of a sensor with temperature variations
02/11/1998CN1172949A Capacitive differential pressure detector
02/03/1998US5714673 Method and apparatus for monitoring engine control sensors
01/1998
01/22/1998WO1998002721A2 Calibration of a sensor with temperature variations
01/22/1998CA2259378A1 A system and method for high accuracy calibration of a sensor for offset and sensitivity variation with temperature
12/1997
12/31/1997CN2271710Y Hand pressure checker with booster
12/24/1997WO1997048974A1 Impulse line blockage detector systems and methods
12/18/1997DE19653213A1 Semiconductor acceleration sensor for motor vehicle airbag inflation
12/17/1997EP0813047A2 Transducer having redundant pressure sensors
12/17/1997EP0812414A1 Pressure transmitter with remote seal diaphragm and correction circuit therefor
12/16/1997US5698780 Method and apparatus for detecting a malfunction in an intake pressure sensor of an engine
12/11/1997CA2197897A1 Transducer having redundant pressure sensors
12/02/1997US5693871 Method for calibrating low differential pressure transducers
10/1997
10/30/1997DE19710196A1 Device for analysing gas in vacuum tube, e.g. cathode ray tube, lamp or fluorescent display
10/29/1997CN1163345A Fault diagnostic controller for pressure sensor
10/21/1997US5680109 Impulse line blockage detector systems and methods
10/14/1997US5677477 Hermetic pressure sensor test chamber
10/02/1997WO1997036156A1 Air pack type contact pressure measuring method
10/02/1997DE19712797A1 Disturbance diagnostic monitor for pressure sensor measuring suction pressure of IC engine
09/1997
09/30/1997US5672808 Transducer having redundant pressure sensors
09/24/1997EP0797084A1 Method of manufacturing capacitive ceramic absolute pressure sensors classified in zero-point long-term stability groups
09/16/1997US5668305 Method and apparatus for over pressure testing pressure sensitive devices on a wafer
09/10/1997EP0794418A1 Bourdon pressure gauge device
09/09/1997US5665899 Pressure sensor diagnostics in a process transmitter
08/1997
08/28/1997WO1997031252A1 Pressure sensor diagnostics in a process transmitter
08/28/1997CA2246613A1 Pressure sensor diagnostics in a process transmitter
07/1997
07/16/1997EP0783645A1 Apparatus and method for use in testing gas pressure reduction equipment
04/1997
04/22/1997US5623101 Process to correct a differential pressure signal
04/15/1997US5620005 Calibration apparatus for the pressure gauges of a whole-body plethysmograph
03/1997
03/30/1997CA2186770A1 Apparatus for measuring pressure
03/18/1997CA2026852C Fluid dam and pressure tester apparatus and method of use
03/05/1997EP0719448A4 Fiberoptic pressure sensor having drift correcting means for in situ calibration
02/1997
02/20/1997DE19531926A1 Correcting differential pressure signals obtained from measuring transducer
02/13/1997WO1997005417A1 Apparatus and method for use in testing gas pressure reduction equipment
02/13/1997CA2317965A1 Apparatus and method for use in testing gas pressure reduction equipment
01/1997
01/16/1997WO1997001747A1 Gravity-induced diaphragm deflection for pressure measurement
01/15/1997CN2245216Y Computer controlled pressure gage detector for car
01/07/1997US5591917 Semiconductor pressure sensor with rated pressure specified for desired error of linearity
01/02/1997DE19523652A1 Pressure sensor adjustment method esp. for door lock and close system in vehicle
12/1996
12/27/1996EP0749721A1 In vivo rezero apparatus for a pressure transducer
12/20/1996CA2176429A1 In vivo rezero apparatus for a pressure transducer
11/1996
11/12/1996US5574645 Manifold absolute pressure sensor emulator
10/1996
10/16/1996EP0737043A1 System and method for in vivo calibration of a sensor
1 ... 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26