| Patents for G01L 27 - Testing or calibrating of apparatus for measuring fluid pressure (2,533) |
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| 03/07/1989 | US4809536 Method of adjusting bridge circuit of semiconductor pressure sensor |
| 02/15/1989 | CN2032714U Digital electric transferring device checker |
| 01/26/1989 | WO1989000399A1 Calibration system for blood pressure transducer |
| 01/04/1989 | EP0197043B1 Apparatus and method for calibrating span of pressure measuring instruments |
| 01/04/1989 | EP0197042B1 Reference pressure devices for calibrating pressure-measuring instruments |
| 11/17/1988 | WO1988008966A1 Standardized pressure instrument |
| 10/18/1988 | US4777716 Method for low pressure testing of a solid state pressure sensor |
| 10/11/1988 | US4776201 Method and apparatus for calibrating a differential pressure transducer |
| 10/04/1988 | CA1242592A1 Reference-pressure devices for calibrating pressure- measuring instruments |
| 08/10/1988 | CN87212862U Pressure standard meter |
| 08/02/1988 | US4760730 Calibration system for blood pressure transducer |
| 07/12/1988 | US4756193 Pressure sensor |
| 06/28/1988 | US4753105 Electronic pressure scanner |
| 06/21/1988 | CA1238206A1 Apparatus and method for calibrating span of pressure measuring instruments |
| 05/18/1988 | CN87210426U Air-controlled standard piston pressure gauge |
| 05/11/1988 | EP0266681A2 Method of adjusting bridge circuit of semiconductor pressure sensor |
| 05/04/1988 | CN87204683U Tester for safety valve and pressure gauge |
| 03/29/1988 | US4734873 Method of digital process variable transmitter calibration and a process variable transmitter system utilizing the same |
| 03/29/1988 | US4733553 Method and apparatus for low pressure testing of a solid state pressure sensor |
| 03/23/1988 | CN87208441U Hand-swing weight-adding device |
| 01/12/1988 | US4718278 Pressure transducer with improved calibration |
| 01/07/1988 | EP0251766A1 Apparatus for providing calibrated gas pressure |
| 11/24/1987 | US4708012 Method and apparatus for high pressure testing of solid state pressure sensors |
| 11/24/1987 | US4708010 Apparatus and method for calibrating span of pressure measuring instruments |
| 11/11/1987 | EP0245031A2 Low cost high precision sensor |
| 11/03/1987 | CA1228924A1 Method of digital process variable transmitter calibration and a process variable transmitter system utilizing the same |
| 10/31/1987 | CN86211057U Electrical controlled standard piston type pressure gauge |
| 10/13/1987 | US4698998 Pressure calibration systems and control valve assemblies |
| 10/13/1987 | US4698997 Oscillation pressure device for dynamic calibration of pressure transducers |
| 10/01/1987 | DE3610170A1 Method for calibrating a measurement circuit |
| 08/26/1987 | EP0233176A1 Sensor for measuring physical magnitudes and method for adjusting the sensor. |
| 06/30/1987 | US4676255 Telemetric in-vivo calibration method and apparatus using a negative pressure applicator |
| 06/19/1987 | DE3544095A1 Device for calibrating analog real-time signals |
| 06/16/1987 | US4672974 Method and apparatus for "zeroing" and calibrating a catheter-tip gauge-pressure transducer |
| 06/02/1987 | US4669317 Devices for the very accurate measurement of fluid pressures |
| 05/05/1987 | CA1221247A1 Automatic calibration of sensor circuits in gear shapers |
| 04/22/1987 | CN86106973A Electrically controlled standard piston-type pressure vacuum gauge |
| 04/21/1987 | US4658829 Method and apparatus for pressure transducer calibration and simulation |
| 04/08/1987 | EP0217509A2 Self-zeroing transducer assemblies |
| 04/07/1987 | US4655074 Self-zeroing pressure transmitter with automatic pressure manifold |
| 02/03/1987 | USH206 Dynamic pressure calibrator |
| 01/27/1987 | US4638656 Apparatus and method for calibrating span of pressure measuring instruments |
| 11/26/1986 | EP0202970A1 Device with piston for the very precise measurement of fluid pressures |
| 10/28/1986 | US4619135 Apparatus and method for calibrating environment control systems |
| 10/21/1986 | US4617826 Test system for air data sensor |
| 08/27/1986 | CN85107259A Improved reference pressure devices for calibrating pressure-measuring instruments |
| 08/20/1986 | EP0191065A1 Portable pressure gauge tester |
| 08/12/1986 | US4604891 Reference pressure devices for calibrating pressure-measuring instruments |
| 08/05/1986 | US4603574 Blood pressure transducer tester |
| 07/30/1986 | EP0188909A2 Device and method for compensating for sensor error in system calculating dynamic pressure |
| 07/16/1986 | CN85107047A Apparatus and method for calibrating span of pressure measuring instruments |
| 07/08/1986 | CA1207162A1 Transducer calibration system |
| 07/03/1986 | WO1986003831A1 Sensor for measuring physical magnitudes and method for adjusting the sensor |
| 07/01/1986 | US4598381 Pressure compensated differential pressure sensor and method |
| 06/17/1986 | US4594877 Pneumatic deadweight tester incorporating dampening means |
| 05/27/1986 | US4590791 Self calibrating pressure transducer |
| 04/24/1986 | WO1986002449A1 Apparatus and method for calibrating span of pressure measuring instruments |
| 04/24/1986 | WO1986002448A1 Reference pressure devices for calibrating pressure-measuring instruments |
| 04/23/1986 | EP0178368A2 Process variable transmitter and method for correcting its output signal |
| 03/18/1986 | US4576035 Self-calibrating differential condition sensor |
| 03/12/1986 | EP0174236A1 Semiconductor integrated circuit device having a test circuit |
| 03/12/1986 | EP0173825A1 Improvements in the pressure-gauges for fire-extinguishers, permitting to check the efficiency of said extinguishers |
| 03/11/1986 | CA1201608A1 Precision pressure gauge |
| 03/04/1986 | USH34 Aircraft cabin pressurization control system tester |
| 02/27/1986 | WO1986001292A1 Portable pressure gauge tester |
| 01/29/1986 | EP0169284A2 Automatic calibration of sensor circuits in gear shapers |
| 01/28/1986 | US4566309 Apparatus and method for monitoring a pressure sensor |
| 01/28/1986 | US4566308 Portable pressure gauge tester |
| 01/07/1986 | US4562845 Methods and apparatus for testing a blood pressure monitoring system of the hydraulic type |
| 10/22/1985 | US4549180 Process variable transmitter |
| 09/24/1985 | US4542638 Automatic calibration of sensor circuits in gear shapers |
| 08/27/1985 | US4537078 Precision pressure gauge |
| 08/27/1985 | US4537065 Device for detection of abnormality in pressure detector for internal combustion engine |
| 04/23/1985 | US4512179 Instrument for calibrating pressure gauges |
| 03/28/1985 | WO1985001347A1 Automatic calibration of sensor circuits in gear shapers |
| 03/26/1985 | US4506539 Dynamic pressure comparator |
| 03/19/1985 | US4506338 Method and apparatus for judging the state of operation of an intake passage pressure detecting device for an engine |
| 03/12/1985 | CA1183956A1 Process variable transmitter having a non-interacting operating range adjustment |
| 02/19/1985 | US4499903 Methods and apparatus for testing a blood pressure monitoring system of the hydraulic type |
| 02/19/1985 | US4499751 Dynamic pressure generator |
| 01/15/1985 | US4494183 Process variable transmitter having a non-interacting operating range adjustment |
| 11/20/1984 | US4483299 Method for detecting abnormality in sensor means for detecting a parameter relating to intake air quantity of an internal combustion engine |
| 09/18/1984 | US4471646 Blood pressure cuff calibration system |
| 07/17/1984 | CA1171178A1 Temperature compensated measuring system |
| 07/04/1984 | EP0112647A1 Precision pressure gauge |
| 06/05/1984 | CA1168466A1 Calibration adjustment for gauge instruments |
| 05/08/1984 | US4446715 Transducer calibration system |
| 02/14/1984 | US4430884 Method for testing hydraulic releases |
| 01/04/1984 | EP0097479A2 Adjustable process variable transmitter |
| 12/22/1983 | WO1983004435A1 Transducer calibration system |
| 11/08/1983 | US4413526 Device for accurately measuring fluid pressure with display of the measured pressure |
| 11/08/1983 | CA1156487A1 Auto-zero system for pressure transducers |
| 05/24/1983 | US4384470 Method and apparatus for testing blood vessel catheters |
| 05/24/1983 | CA1147063A1 Sensor output correction circuit |
| 05/17/1983 | US4383431 Auto-zero system for pressure transducers |
| 04/19/1983 | US4380166 Testing apparatus for a dual pressure indicator and control unit for pasteurization equipment |
| 04/06/1983 | EP0075847A2 Hydraulic device for generating a normalised force |
| 03/29/1983 | US4378523 Metering and control system |
| 03/22/1983 | US4377851 Method for calibrating a transducer for converting pressure variation to frequency variation |
| 02/08/1983 | US4372148 Generating apparatus for a variable fluid pressure |