| Patents for G01L 9 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means (16,396) |
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| 06/01/1989 | WO1989004953A1 A pressure responsive potentiometer |
| 05/31/1989 | EP0317664A1 Measurement cell, particularly for measurements of relative and differential pressure |
| 05/31/1989 | EP0242353B1 Electric pressure detector provided with a leak indicator |
| 05/30/1989 | US4833922 Modular transmitter |
| 05/30/1989 | US4833920 Differential pressure sensor |
| 05/30/1989 | CA1254951A1 Magnetic detection of physiopathological parameters |
| 05/24/1989 | EP0317163A2 Cylinder pressure sensor for an internal combustion engine |
| 05/24/1989 | EP0316473A1 Device for holding an optical fibre |
| 05/24/1989 | EP0316343A1 Media isolated pressure sensors. |
| 05/24/1989 | EP0151575B1 Reactance measurement circuit with enhanced linearity |
| 05/24/1989 | CN2038234U Pressure gauge of large capacity with electrical contact point |
| 05/18/1989 | DE3821693A1 Capacitive pressure transducer and method for the production of this pressure transducer |
| 05/17/1989 | EP0316257A2 Piezoelectric sensor |
| 05/17/1989 | EP0190270B1 Transducer for the electrical measurement of forces, torques, accelerations, pressures and mechanical stresses |
| 05/16/1989 | US4831492 Capacitor construction for use in pressure transducers |
| 05/16/1989 | US4831304 Sensors |
| 05/16/1989 | US4829828 Pressure transducer |
| 05/16/1989 | US4829827 Pressure transducer |
| 05/16/1989 | US4829826 Differential-pressure transducer |
| 05/16/1989 | US4829825 Multiple diaphragm probe seal |
| 05/16/1989 | CA1254058A1 Fluid pressure transducer |
| 05/11/1989 | DE3737059A1 Measurement converter with a capacitative sensor |
| 05/09/1989 | US4827922 Process and device for supplying respiratory oxygen |
| 05/05/1989 | WO1989004089A1 Transmitter with internal serial bus |
| 05/05/1989 | WO1989003981A1 Process and sensor for measuring mechanical stresses in elements composed of magnetizable materials |
| 05/02/1989 | US4827240 Force measuring device |
| 05/02/1989 | US4825876 Encapsulated blood pressure transducer |
| 05/02/1989 | US4825685 Pressure transducer |
| 05/02/1989 | US4825684 Method of testing semiconductor pressure sensor |
| 04/27/1989 | EP0311613A4 Pressure transducer with stress isolation for hard mounting. |
| 04/27/1989 | DE3733766A1 Method for the production of a pressure sensor |
| 04/26/1989 | EP0312532A1 Differential pressure sensor. |
| 04/26/1989 | CN1004025B Detecting device for the moving requlation of gas valve, on air compressor |
| 04/25/1989 | US4823619 Sensor and transducer apparatus |
| 04/25/1989 | US4823605 Semiconductor pressure sensor with casing and method for its manufacture |
| 04/25/1989 | US4823603 For measuring changes in pressure |
| 04/20/1989 | WO1989003592A1 Semiconducteur thin-film pressure sensor and method of producing the same |
| 04/20/1989 | WO1989003573A1 Generating speech from digitally stored coarticulated speech segments |
| 04/19/1989 | EP0312332A2 Barometric meter |
| 04/19/1989 | EP0312197A2 Pressure sensor and method of manufacturing the same |
| 04/19/1989 | EP0311636A1 Miniaturized sensor for physiological pressure measurements |
| 04/19/1989 | EP0311613A1 Pressure transducer with stress isolation for hard mounting. |
| 04/19/1989 | EP0311612A1 Capacitance pressure sensor. |
| 04/18/1989 | US4823230 Pressure transducer |
| 04/18/1989 | US4823117 Electronic oil pressure sensor circuit |
| 04/18/1989 | CA1252646A1 Measuring transducer |
| 04/11/1989 | US4821011 Amorphous metal strain gage protected by silicon oxide film; durable |
| 04/11/1989 | US4820953 Rate of ascent monitor using piezoelectric transducer |
| 04/11/1989 | US4819487 High pressure transducer |
| 04/11/1989 | CA1252556A1 Catheter tip pressure transducer |
| 04/05/1989 | EP0310225A2 Method for the series production of capacitive pressure sensors |
| 04/04/1989 | US4818994 Transmitter with internal serial bus |
| 04/04/1989 | US4817419 Fluid pressure sensor circuit |
| 03/29/1989 | EP0308522A1 Solid state accumulating altimeter |
| 03/28/1989 | US4816713 Piezoelectric sensor with FET amplified output |
| 03/28/1989 | US4815472 Multipoint pressure-sensing catheter system |
| 03/28/1989 | US4815471 Catheter assembly |
| 03/28/1989 | CA1251841A1 Stall surge detector |
| 03/28/1989 | CA1251840A1 Pressure responsive assembly |
| 03/23/1989 | WO1989002578A1 Modular switch device |
| 03/23/1989 | WO1989002512A1 Pressure sensor system |
| 03/22/1989 | CN2034690U Median range numerical type measuring pressure gauge |
| 03/21/1989 | US4814856 Integral transducer structures employing high conductivity surface features |
| 03/21/1989 | US4814845 Capacitive transducers employing high conductivity diffused regions |
| 03/21/1989 | US4814662 Piezoelectric resonator with either minimal or extreme sensitivity to external pressure stresses |
| 03/21/1989 | US4813286 Mechanical-electrical transducer |
| 03/21/1989 | US4813272 Semiconductor pressure sensor |
| 03/21/1989 | US4813271 Resonator device |
| 03/21/1989 | CA1251337A1 Non-compliant pressure cell |
| 03/14/1989 | US4812888 Suspended gate field effect semiconductor pressure transducer device |
| 03/09/1989 | WO1989002061A1 Compact air data sensor |
| 03/09/1989 | WO1989001827A1 Portable centrifuge apparatus |
| 03/07/1989 | USH606 Pressure sensor assembly |
| 03/07/1989 | US4809709 Pressure-sensing catheter system with compensation for atmospheric and configuration variations |
| 03/07/1989 | US4809704 Catheter type sensor |
| 03/07/1989 | US4809555 Pressure sensor |
| 03/07/1989 | US4809536 Method of adjusting bridge circuit of semiconductor pressure sensor |
| 02/28/1989 | US4808549 Method for fabricating a silicon force transducer |
| 02/28/1989 | US4807479 Transducer for detecting pressure changes in pipes |
| 02/28/1989 | US4807478 Pressure transducer |
| 02/28/1989 | US4807477 Capacitive temperature compensation for a pressure sensor |
| 02/28/1989 | CA1250446A1 Differential pressure transmitter |
| 02/23/1989 | DE3727221A1 Sensor for pressure (compressive) force |
| 02/22/1989 | EP0303615A1 Measurement circuit. |
| 02/21/1989 | US4806901 Motion transducer |
| 02/21/1989 | US4806783 Transducer circuit |
| 02/21/1989 | US4805630 Monitoring pressure of blood within a vessel |
| 02/21/1989 | US4805449 Apparatus and method for measuring differential pressure while drilling |
| 02/09/1989 | WO1989001132A1 Heated semiconductor measurement of fluid flow |
| 02/08/1989 | EP0302654A2 Method of sealing an electrical feedthrough in a semiconductor device |
| 02/08/1989 | CN2032319U Piezomagnetic sensor and composed gauges (pressure gauge and orifice bottom pressure gauge) therewith |
| 02/07/1989 | US4803483 Downhole pressure and temperature monitoring system |
| 02/07/1989 | US4802952 Method for manufacturing semiconductor absolute pressure sensor units |
| 02/07/1989 | US4802370 Transducer and sensor apparatus and method |
| 01/31/1989 | US4800759 Semiconductor pressure converter |
| 01/31/1989 | US4800758 Pressure transducer with stress isolation for hard mounting |
| 01/26/1989 | WO1989000511A1 Tyre pressure sensor for motor vehicles |
| 01/25/1989 | EP0300833A1 Differential pressure indication in fluid flow units |
| 01/25/1989 | EP0300196A1 Transducer for length or distance variations, especially for the contactless measurement of torque in rotating axes |
| 01/24/1989 | US4799751 Detection device using fiber optic techniques |