Patents
Sitemap › G01 - Measuring; Testing › G01L - Measuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure › 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
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)
11/1990
11/08/1990CA2014257A1 Snap-fit construction low cost pressure sensing device
11/07/1990EP0396191A1 Fibre-optic pressure transducer
11/06/1990US4967600 Manometer
11/06/1990CA1275824C Rate of ascent monitor
11/06/1990CA1275823C Stress reducing stop for unstretched pressure sensing diaphragm
11/01/1990WO1990013011A1 Process for producing a sensor for the measurement of compressive forces
11/01/1990WO1990013010A1 Process and arrangement for piezoelectric measurement
10/1990
10/31/1990EP0395622A2 Pressure sensor
10/31/1990EP0394664A2 Improved semiconductor pressure sensor means and method
10/31/1990EP0394632A1 Pressure sensor and method of fabricating the same
10/31/1990EP0394617A1 Measuring system for determining the pressure of concrete
10/31/1990EP0394287A1 Portable centrifuge apparatus.
10/30/1990US4966663 Method for forming a silicon membrane with controlled stress
10/30/1990US4966649 Hermetic sealing of recess gives self-oscillating hollow chamber; amplification
10/30/1990US4966039 Electrical force and/or deformation sensor, particularly for use as a pressure sensor
10/24/1990EP0393141A1 Silicon-based mass airflow sensor.
10/24/1990CN2064534U Silicon-based force sensitive components of film and thick film styles
10/23/1990US4965777 Very-high-pressure transducer, particularly for detecting the pressure of a hydraulic fluid
10/23/1990US4965697 Solid state pressure sensors
10/18/1990WO1990012298A1 Resonant pressure sensor
10/18/1990WO1990012296A1 Semiconductor transducer or actuator utilizing corrugated supports
10/18/1990DE3912280A1 Verfahren zum herstellen eines sensors zum bestimmen von druckkraeften A method of manufacturing a sensor for determining druckkraeften
10/17/1990EP0392897A2 Three-parameter optical fiber sensor and system
10/17/1990EP0392746A2 Transducer temperature compensation circuit
10/17/1990EP0392486A1 Pressure sensor for the combustion chamber of an internal combustion piston engine
10/17/1990EP0053976B1 A device to sense and determine the pressure of a fluid
10/17/1990CN2064053U Grid type pressure transducer
10/16/1990US4963954 Arrangement for reducing piezoelectric effects in an electrical component
10/14/1990WO1990012300A1 Pressure sensor
10/10/1990EP0390860A1 Medical devices fabricated from homopolymers and copolymers having recurring carbonate units.
10/10/1990CN1046039A Pressure transducer
10/09/1990US4961345 Vibration type transducer
10/04/1990WO1990011503A1 Differential pressure gauge
10/04/1990WO1990011500A1 Process and device for measuring mechanical deformation
10/03/1990EP0390619A2 A pressure sensor of the semiconductor-on-insulator type
10/03/1990EP0390617A1 Optical pressure sensor and procedure for realising such a sensor
10/03/1990CN2063318U Constant-current power supply for generating high-speed synchronous pulse
10/03/1990CN2063231U Detector for air pressure value in gas-filled cable
10/02/1990WO1990012299A1 A capacitive pressure sensor and a process for its manufacture
10/02/1990USRE33360 Disposable transducer apparatus for an electromanometry system
10/02/1990US4960127 Disposable transducer manifold
10/02/1990US4960000 Device for measuring a physical quantity
10/02/1990US4959999 Vacuum gauge of thermo-conductive type with quartz oscillator
09/1990
09/29/1990WO1990011501A1 Control device for fluid containers of flexible material
09/27/1990DE3933627A1 Sensor with permanent magnet system for measuring motion - has permanent magnet rings separated by weakly magnetic ring plate, coil arrangement
09/27/1990DE3916689C1 Pressure pick=up with two capsule parts - having outer edges forming mounting zone for diaphragm and sealed by two-component adhesive
09/26/1990EP0389071A2 Method for fabricating semiconductor diaphragms
09/26/1990EP0388622A1 Pressure transmitter
09/26/1990EP0316343A4 Media isolated differential pressure sensors
09/26/1990EP0312532A4 Differential pressure sensor
09/26/1990EP0311612A4 Capacitance pressure sensor
09/26/1990CN2062836U Pressure tester with single hydraulic pillar
09/25/1990US4958520 Digital piezoresistive pressure transducer
09/22/1990WO1990011610A1 Electrically conductive feedthrough and process for manufacturing it
09/22/1990WO1990011502A1 Capacitive pressure sensor, and process for the manufacture of the same
09/20/1990DE3908795A1 Verfahren und vorrichtung zur messung einer mechanischen verformung A method and apparatus for measuring a mechanical deformation
09/20/1990DE3907202A1 Pressure sensor
09/19/1990EP0387376A1 Pressure sensor
09/19/1990EP0323963A4 Flangeless transmitter coupling to a flange adapter union
09/12/1990EP0386959A2 Low cost wet-to-wet pressure sensor package
09/11/1990CA1273821A1 At-cut crystal resonator presssure transducer
09/11/1990CA1273814A1 High pressure capacitive transducer
09/05/1990EP0385574A1 Capacitive semiconductor sensor with hinged diaphragm for planar movement
09/05/1990EP0385573A2 Mesa fabrication in semiconductor structures
09/05/1990EP0384934A1 Pressure sensor
09/04/1990US4954925 Capacitive sensor with minimized dielectric drift
09/04/1990US4953393 Transducer
08/1990
08/31/1990CA2008788A1 Mesa fabrication in semiconductor structures
08/29/1990EP0383974A1 Plate shaped sensor element as well as pressure, force or acceleration sensor provided with it
08/28/1990US4951509 Use in a blood line
08/23/1990WO1990009677A1 Formation of microstructures with removal of liquid by freezing and sublimation
08/22/1990EP0383165A2 Pressure sender
08/22/1990EP0382829A1 Miniaturized pressure sensor
08/21/1990US4951236 Low cost high precision sensor
08/21/1990US4951174 Capacitive pressure sensor with third encircling plate
08/21/1990US4949581 Extended measurement capability transmitter having shared overpressure protection means
08/21/1990CA1273102A1 Piezoelectric resonator having an extremal sensitivityto external pressure constraints
08/16/1990EP0382217A2 Power source circuit and bridge type measuring device with output compensating circuit utilizing the same
08/16/1990EP0381775A1 Pressure sensor
08/09/1990WO1990008502A1 Fiber optic intravascular blood pressure transducer
08/09/1990DE3924185C1 Fibre=optic pressure sensor - has three=way coupler splitting incoming light for distribution to reference and sensor fibres for pressure diaphragm
08/08/1990EP0381046A2 Thin film material for sensing or actuating devices and process for producing the same
08/08/1990EP0380885A1 Capacitive sensor with minimized dielectric drift
08/08/1990EP0380661A1 Semiconducteur thin-film pressure sensor and method of producing the same
08/08/1990EP0380572A1 Generating speech from digitally stored coarticulated speech segments.
08/08/1990EP0342274B1 Arrangement for reducing the piezo effects in a semiconductor material that contains at least one piezo effect-sensitive electric device, and method of making the same
08/08/1990EP0290470B1 Pressure sensor
08/08/1990EP0270587B1 Cell holding a pressure pick-off particularly made of ceramic
08/07/1990US4947150 Pressure sender
08/07/1990US4945769 Semiconductor structure
08/07/1990US4945762 Silicon sensor with trimmable wheatstone bridge
08/07/1990CA1272390A1 Method and apparatus for sensing a measurand
08/01/1990EP0379840A2 Quartz tuning fork manometer
08/01/1990EP0379839A2 Quartz tuning fork manometer
08/01/1990EP0298966B1 Pressure sensor
07/1990
07/31/1990US4944187 Multimodulus pressure sensor
07/31/1990CA2045579A1 Fiber optic intravascular blood pressure transducer
07/26/1990WO1990007906A1 Miniaturized pressure sensor
07/24/1990US4942766 Transducer
07/24/1990CA1271930A1 Sealed cavity semiconductor pressure transducers and method of producing the same
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