| 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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| 07/04/1991 | DE3942020A1 Capacitive pressure-transducer for hydrostatic level measurement - has brittle membrane supported on double-S shaped surface under over-load |
| 07/03/1991 | EP0435611A2 Versatile, overpressure proof, absolute pressure sensor |
| 07/03/1991 | EP0435553A2 Optical sensing systems |
| 07/03/1991 | CA2032558A1 Solid state pressure sensor |
| 06/27/1991 | DE3942159A1 Anordnung zur verarbeitung von sensorsignalen An arrangement for processing sensor signals |
| 06/26/1991 | EP0434318A2 Low sheet resistance diffused contacts to buried diffused resistors using isolation regions and buried layer |
| 06/26/1991 | EP0434030A1 Pressure detector by use of quartz oscillator |
| 06/25/1991 | US5027015 Non-linear conversion of input from a sensor to an output with two different slopes |
| 06/25/1991 | US5025667 Hermetic pressure sensor |
| 06/21/1991 | WO1991009278A1 Arrangement for processing sensor signals |
| 06/18/1991 | US5024294 Differential pressure transducer |
| 06/18/1991 | US5024101 Power source circuit and bridge type measuring device with output compensating circuit utilizing the same |
| 06/18/1991 | US5024099 Pressure transducer with flow-through measurement capability |
| 06/18/1991 | US5024098 Pressure sensor useable in oil wells |
| 06/18/1991 | US5024097 Pressure sensor comprising a silicon body |
| 06/13/1991 | DE3940709A1 Pressure transducer with separation sensing - has distance piece between relatively displaceable elements |
| 06/12/1991 | EP0390860A4 Medical devices fabricated from homopolymers and copolymers having recurring carbonate units |
| 06/11/1991 | US5022270 Extended measurement capability transmitter having shared overpressure protection means |
| 06/11/1991 | US5022269 Resonance frequency position sensor |
| 06/11/1991 | CA1284731C Pressure transducer |
| 06/05/1991 | EP0430681A2 Thick diaphragm pressure transducer |
| 06/05/1991 | EP0430676A2 Capacitive pressure sensor |
| 06/05/1991 | EP0430445A2 Piezoelectric pressure sensor |
| 06/05/1991 | EP0349633A4 Polysilicon thin film process and product |
| 06/04/1991 | US5020377 Low pressure transducer using metal foil diaphragm |
| 06/04/1991 | US5020372 Pressure measurement devices |
| 05/29/1991 | DE3938782A1 Pressure compensator for sensor in braking system - contains air exchange body with elastic sealing ring that allows air exchange between sensor and atmosphere |
| 05/28/1991 | US5018529 Miniaturized sensor for physiological pressure measurements |
| 05/28/1991 | US5018388 Pressure sensor for infusion conduits |
| 05/23/1991 | DE3938371A1 Fibre optic displacement sensor - has 3-way coupler and branching transfer fibre into reference and sensing fibres with lenses directing light onto movable mirror |
| 05/22/1991 | EP0428263A1 Vibrating sensor |
| 05/22/1991 | EP0427930A2 Monolithic silicon membrane device and fabrication process therefor |
| 05/21/1991 | WO1991007645A1 Pressure transducer with flow-through measurement capability |
| 05/21/1991 | US5017847 Method and apparatus for adapting the sensitivity of a sensor system for the detection of precipitations during the control of wiping intervals of a screenwiper |
| 05/15/1991 | EP0427261A2 Semiconductor pressure sensor connected to a support element |
| 05/15/1991 | EP0427179A2 A semiconductor pressure sensor |
| 05/14/1991 | US5014557 Composite base for a pressure transducer |
| 05/14/1991 | US5014415 Manufacturing method of a detector using resistance elements |
| 05/12/1991 | CA2029686A1 Electrical devices for measuring hydraulic pressure |
| 05/08/1991 | EP0426171A2 Semiconductor pressing force sensor |
| 05/07/1991 | US5014224 Tactile sensor |
| 05/07/1991 | US5013693 Semiconductors |
| 05/07/1991 | US5013396 Cardiovascular pressure detector |
| 05/07/1991 | US5012679 Optical sensor |
| 05/07/1991 | US5012677 Differential pressure transmitter |
| 05/02/1991 | WO1991006125A1 Semiconductor sensor |
| 05/02/1991 | WO1991005575A1 Integral intracranial pressure monitor and drainage catheter assembly |
| 05/02/1991 | EP0424483A1 Pressure sensor. |
| 05/01/1991 | CN1012543B Piezoelectric transduce with multiple sensitive coaxial elements |
| 04/30/1991 | US5010770 Vibrating tube fiber optic pressure transducer with light-powered electro-magnetic drive |
| 04/24/1991 | EP0423903A2 Spectral modulation sensor having an optically resonant structure and optical measuring devices using the same |
| 04/24/1991 | EP0423273A1 Process and arrangement for piezoelectric measurement. |
| 04/24/1991 | CN2075780U Remote pressure gauge with magnetic sensitive sensor |
| 04/23/1991 | US5010248 Sampling hydrophone |
| 04/23/1991 | US5009108 Vibrating type transducer |
| 04/23/1991 | US5009107 Optical pressure sensor and a method and apparatus for making such a sensor |
| 04/18/1991 | WO1991005232A1 Capacitive pressure transducer system |
| 04/18/1991 | WO1991005231A1 Device for measuring mechanical forces and their dynamic effects |
| 04/18/1991 | DE3932618A1 Vorrichtung zur messung mechanischer kraefte und kraftwirkungen A device for measuring mechanical forces and force effects |
| 04/18/1991 | DE3920424C1 Measuring internal pressure in mould chamber - using pressure stamper whose front end comprises cylindrical shaft, coaxial cylindrical stamper member and measurement unit |
| 04/17/1991 | EP0422260A1 Method and device for simultaneously determining the oxygen content and the residual pressure in a package |
| 04/17/1991 | EP0380572A4 Generating speech from digitally stored coarticulated speech segments |
| 04/17/1991 | EP0371966B1 Tyre pressure sensor for motor vehicles |
| 04/16/1991 | US5007286 Solid-state transducer based dynamic fluid flow sensing system |
| 04/16/1991 | CA1283150C Pressure responsive switch |
| 04/11/1991 | DE4025883A1 Differential pressure manometer and thermal meter - has membrane maintained in position by capacitor whose voltage is proportional to thermal medium flow rate |
| 04/10/1991 | EP0421394A2 Differential pressure measuring device |
| 04/10/1991 | CN1050615A Vernier voltage to digital converter |
| 04/09/1991 | US5005584 Fiber optic pressure transducer |
| 04/09/1991 | US5005421 Joining by copper spacer |
| 04/04/1991 | WO1991004475A1 Pressure transmitter with flame isolating plug |
| 04/04/1991 | WO1991003989A1 Process and device for the production of an individual tooth replacement part |
| 04/03/1991 | EP0420569A2 Glass tube/stainless steel header interface for pressure sensor |
| 04/03/1991 | EP0420105A2 Differential pressure measuring device with autocontrol |
| 04/03/1991 | CN1050441A Pressure transmitter with flame isolating plug |
| 04/03/1991 | CN1050440A 差压传感器 Differential Pressure Sensor |
| 04/02/1991 | US5004996 Sensing pressure |
| 04/02/1991 | US5003827 Piezoelectric differential pressure vortex sensor |
| 04/02/1991 | US5003825 Digital pressure sensor |
| 03/30/1991 | WO1991005267A1 Vernier voltage-to-digital converter |
| 03/28/1991 | DE3931049A1 Pressure sensor esp. for monitoring motor vehicle tyre - has electric switch formed from contact rod and diaphragm welded to housing inside pressure chamber |
| 03/27/1991 | EP0419219A2 An improved pressure transducer and a method of making the pressure transducer |
| 03/27/1991 | EP0419021A2 Sensors with vibrating elements |
| 03/27/1991 | CN1012217B Semiconductive force transferring apparatus |
| 03/26/1991 | US5002901 Multilayer semiconductor transducers, a wafer with a dielectric layer on a glass surface, diffusion of a doped semiconductor layer |
| 03/26/1991 | US5001934 Solid state pressure sensor |
| 03/21/1991 | CA2059644A1 Pressure transmitter with flame isolating plug |
| 03/20/1991 | EP0417317A1 Differential pressure gauge |
| 03/20/1991 | EP0417171A1 A device for chronic measurement of internal body pressure. |
| 03/20/1991 | EP0417156A1 A pressure gauge. |
| 03/20/1991 | CN1012098B Improved pump pressure sensor |
| 03/19/1991 | US5001595 Two alumina ceramic disks joined and forming a sealed chamber, one as an elastic diaphragm, supports for capacitors, nickel coating forming a pattern connected to electronic circuits |
| 03/19/1991 | US5000048 Circuit arrangement for temperature compensation of capacitive pressure and differential pressure sensors |
| 03/19/1991 | US5000047 Pressure sensor |
| 03/06/1991 | EP0414872A1 Electrically conductive feedthrough and process for manufacturing it. |
| 03/06/1991 | EP0414871A1 Capacitive pressure sensor, and process for the manufacture of the same. |
| 03/06/1991 | EP0291516B1 Electrohydraulic device for continuously monitoring the pressure of the hydraulic braking system of motor vehicles |
| 03/06/1991 | CN1049718A Strain test element and pressure transducer using it |
| 03/05/1991 | US4998179 Capacitive semiconductive sensor with hinged diaphragm for planar movement |
| 02/26/1991 | US4996627 High sensitivity miniature pressure transducer |