Patents
Patents for G01L 27 - Testing or calibrating of apparatus for measuring fluid pressure (2,533)
09/1996
09/25/1996EP0623210B1 A testing apparatus for pressure gauges
09/06/1996WO1996027124A1 Pressure transmitter with remote seal diaphragm and correction circuit therefor
09/04/1996CN2234613Y Automatic checking instrument for hemomanometer
08/1996
08/20/1996US5546795 Method and apparatus for diagnosis of trouble in supercharging pressure sensor
07/1996
07/23/1996US5537869 Integrated multichannel pressure measuring system and corresponding measuring process
07/18/1996DE19541900A1 Whole body plethysmograph with manometer calibration
07/10/1996CN2230924Y Integrated digital pressure and pressure difference meter checking instrument
07/03/1996EP0719448A1 Fiberoptic pressure sensor having drift correcting means for in situ calibration
06/1996
06/18/1996US5528214 Pressure-adjusting device for adjusting output of integrated pressure sensor
05/1996
05/15/1996DE19524377A1 Test pump for producing pressure for testing pressure measuring units
05/14/1996US5515711 Pressure measurement and calibration apparatus using gravity-induced diaphragm deflection
05/09/1996DE4439606A1 Testing and demonstrating of immersion computers inside pressure vessel
04/1996
04/10/1996CN2224413Y Gas-pressure defining device
01/1996
01/31/1996EP0694774A1 Apparatus and method for the calibration of a pressure responsive device
01/31/1996CN2218927Y Testing table for gas pressure part
01/23/1996US5485741 Vacuum calibration method for an optical fiber pressure transducer
01/17/1996CN2217795Y Oxygen-pressure meter convenient for detecting
12/1995
12/05/1995US5473152 Code symbol for marking plastic bottles
11/1995
11/23/1995DE4445534C1 Obtaining calibration value for piezoelectric vacuum pressure meter
10/1995
10/31/1995US5461901 Testing apparatus for pressure gauges implementing pneumatic feedback to control stepless regulating valve
10/24/1995US5461584 Semiconductor sensor device
09/1995
09/13/1995CN2207574Y Pressure changing conveyer check gauge
08/1995
08/22/1995CA2046404C Apparatus for rezeroing an in vivo pressure sensor and method for rezeroing
08/01/1995US5437284 System and method for in vivo calibration of a sensor
07/1995
07/06/1995WO1995017846A1 System and method for in vivo calibration of a sensor
07/06/1995CA2180151A1 System and method for in vivo calibration of a sensor
06/1995
06/06/1995US5422478 Fiberoptic pressure sensor having drift correction means for insitu calibration
06/06/1995US5421956 Method of fabricating an integrated pressure sensor
05/1995
05/30/1995US5419182 Pressure difference detector, a method for judging an abnormality of the detector, and a fuel vapor emission preventing employing the detector
04/1995
04/18/1995US5407501 Method of manufacture of pressure sensor having a laminated substrate
04/04/1995US5402666 Method and apparatus for precise measurement of differential pressures
03/1995
03/23/1995WO1995008183A1 Fiberoptic pressure sensor having drift correcting means for in situ calibration
03/15/1995EP0642658A1 Pressure transducer
02/1995
02/22/1995EP0383827B1 Transmitter with internal serial bus
02/08/1995EP0456811B1 Multi-variable sensor calibration
02/01/1995CN2188758Y Electric control self-adjusting check table for pressure gage
01/1995
01/18/1995EP0634185A2 Digital dual pressure guage
01/18/1995CN2187786Y Multiplex standard pressure signal generator
11/1994
11/22/1994US5365768 Sensor
11/09/1994EP0623210A1 A testing apparatus for pressure gauges.
11/01/1994US5361218 Self-calibrating sensor
09/1994
09/21/1994CN2177939Y Membrane oil-water separator
09/14/1994CN2177235Y Calibrating instrument of automatic metre
09/07/1994CN2176542Y Self adjusting piezometer with standard floating ball
09/06/1994US5345400 Method of calibrating mechanical pressure gauges
08/1994
08/24/1994CN2175419Y Desk like precision meter for measuring liquid pressure with luminous means
07/1994
07/27/1994CN2172866Y Intelligent testing and calibrating apparatus for general instruments
07/26/1994US5331838 Dead weight piston drive and control system
07/19/1994US5329818 Correction of a pressure indication in a pressure transducer due to variations of an environmental condition
07/13/1994CN2171852Y Checking device for breakout pressure meter
06/1994
06/28/1994US5324181 Precisely adjustable pneumatic calibration pump
06/14/1994US5319965 Multiple channel pressure recorder
06/14/1994US5319957 Method and apparatus for testing containers
06/08/1994CN1024947C Oil pump used for doublemeter pressure checker
06/07/1994US5317902 Method and apparatus for testing containers
05/1994
05/11/1994DE4237806A1 Gas pressure measurement and simulation arrangement - achieves optimal time characteristic selecting control type using manually or automatically defined gas press. and dynamically varied test press.
05/10/1994US5311452 Plasma processing apparatus using capacitance manometer and pressure control method thereof
05/03/1994US5307683 Transient temperature compensation for pressure gauges
04/1994
04/26/1994US5305642 Portable high precision pressure transducer system
03/1994
03/22/1994US5296817 Ionization gauge and method of using and calibrating same
03/16/1994CN1083924A Multi-channel standard pressure signal generator
02/1994
02/17/1994WO1994003787A1 Transient temperature compensation for pressure gauges
02/15/1994US5285690 Pressure sensor having a laminated substrate
02/03/1994WO1993024818A3 Correction for a pressure transducer
01/1994
01/26/1994EP0580462A1 Process and device for the correction of thermal errors in the acquisition of electric parameters
01/25/1994US5280718 Transducer health and offset calibration processing system
01/12/1994EP0578252A2 Semiconductor sensor device
01/04/1994US5275036 Relief valve testing apparatus
01/04/1994US5275035 Autocalibrating trip controller with dual adjustable trip points
12/1993
12/23/1993DE4220083A1 Reference force or pressure generator for calibration of meters - has pressure transmitting opening above liquid which surrounds heater-cooler, which acts as setting element of control loop, to enable use of dependency of vapour pressure of liquid on temp..
12/15/1993CN2149620Y Calibrating apparatus for gas pressure gauge
12/14/1993US5269311 Method for compensating errors in a pressure transducer
12/09/1993WO1993024818A2 Correction for a pressure transducer
12/09/1993CA2133732A1 Correction for a pressure transducer
12/08/1993CN2148956Y Performance tester for pneumatic meter
12/08/1993CN1079298A Correction for a pressure transducer
11/1993
11/18/1993EP0569608A1 Monitoring procedure for combustion engine cylinder pressure sensors
11/10/1993CN1078307A Mercury-free calibration apparatus for sphygmomanometer
11/09/1993US5259235 Pressure standard
11/02/1993US5257630 Pressure sensing probe with calibration capability
10/1993
10/28/1993WO1993021652A1 Drift correction for fiberoptic pressure sensors
10/19/1993US5255209 Method for determining the combustion chamber pressure in a cylinder of an internal-combustion engine with a pressure sensor
09/1993
09/21/1993US5247171 Drift correction for fiberoptic pressure sensors
08/1993
08/04/1993EP0553725A2 Apparatus and method of manufacture of pressure sensor having a laminated substrate
08/04/1993CN2139697Y Pressure meter parity checker with speed oil-filled device
06/1993
06/30/1993CN2137355Y Vacuometer with two pistons capable of being regulated independently
06/22/1993CA1319267C Transmitter with internal serial bus
06/16/1993CN2136009Y Combined bellows pressurizer for non-mercury tester of sphygmomanometer
05/1993
05/27/1993DE4239132A1 Integrated pressure sensor prodn. - comprising forming diaphragm on silicon wafer, connecting to socket, semi-cutting socket, adjusting resistance, and completely cutting wafer
04/1993
04/29/1993WO1993008454A1 A testing apparatus for pressure gauges
04/21/1993EP0537770A2 Ionization gauge and method of using and calibrating same
04/20/1993US5204623 Apparatus for evaluation of capacitive type pressure transducers using helmholtz coils
04/20/1993US5203340 Apparatus for rezeroing an in vivo pressure sensor and method for rezeroing
03/1993
03/31/1993EP0533831A1 Apparatus for testing leak detectors
02/1993
02/03/1993CN1068650A Method and apparatus for testing containers
01/1993
01/21/1993DE4124191A1 Physical parameter, e.g. pressure, sensor system with quasi-digital calibration - uses analogue components to calibrate computer which corrects measured parameters
01/19/1993US5179856 Pressure gauge
01/13/1993EP0522254A1 Method and apparatus for testing of containers
01/09/1993CA2070298A1 Method and apparatus for testing containers
01/07/1993EP0521694A1 Relief valve testing apparatus
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