Patents
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)
06/1994
06/15/1994CN2169129Y Hydraulic pressure sensor
06/14/1994US5320705 Electrical isolation
06/14/1994US5319980 Board construction for resistive strain gauge pressure sensors
06/14/1994US5319979 Load cell pressure sensor for pump cassette
06/14/1994US5319978 Optical pressure transducer
06/09/1994DE4341120A1 Press. sensor, esp. capacitive press. sensor for vehicle fuel system - has substrate and membrane carrying electrodes, separated by distance piece and held by elastic clamp
06/09/1994DE4241175A1 Pressure measuring system using float manometer - uses measuring rod attached to vertically displaced float cooperating with electrical, magnetic or photoelectric detector
06/08/1994EP0600491A2 Method and apparatus for testing fluid pressure in a sealed vessel
06/07/1994US5318652 Wafer bonding enhancement technique
06/07/1994US5317948 Pressure transducer using permanent magnet and opposing variable magnetic field
06/07/1994US5317923 Pressure transducers
06/07/1994US5317922 Capacitance transducer article and method of fabrication
06/07/1994US5317921 Resistive strain gauge pressure sensor
06/07/1994US5317920 Resistive strain gauge pressure sensor with increased sensitivity
06/07/1994US5317919 A precision capacitor sensor
06/07/1994US5317918 High resolution pressure sensor
06/07/1994US5317917 Resonant pressure transducer
06/01/1994EP0370013B1 Isolator apparatus
06/01/1994CN1024842C Strain test element and pressure transducer using it
05/1994
05/31/1994US5316619 Capacitive surface micromachine absolute pressure sensor and method for processing
05/31/1994US5315878 Measuring head for a pressure-measuring device with a pressure sensor for the simultaneous actuation of a switching contact
05/31/1994US5315877 Low cost versatile pressure transducer
05/31/1994US5315875 Pressure sensor for detecting the pressure in the combustion chamber of internal-combustion engines
05/31/1994CA1329881C High performance glass to metal solder joint
05/26/1994WO1994011719A1 Method of fabricating membranes mounted on a frame
05/26/1994DE4239546A1 Pressure measuring device for flow medium - uses oscillation body in feedback oscillation system employing cooperating coil and permanent magnet
05/25/1994EP0598644A1 Capillary rheometer plunger pressure transducer and measurement technique
05/25/1994EP0598343A2 Force sensor, temperature sensor and temperature/force sensor device
05/24/1994US5315110 For use in a wellbore to measure pressure
05/24/1994US5313957 Guide wire mounted pressure transducer
05/24/1994US5313839 Transducer assembly and method
05/19/1994DE4238545A1 Pressure sensor e.g. for diesel engine, high-pressure lines or industrial processes - comprises heterostructure semiconductor diode with double barrier resonant tunnel or simple barrier tunnel structure
05/19/1994DE4238113A1 Semiconductor chip mounting arrangement for fragile semiconductor element - includes silicon rubber encapsulation on all sides of chip within plastics package
05/18/1994EP0597302A2 Etching method for silicon substrate
05/18/1994EP0597145A1 Pillow type pressure detector
05/18/1994CN2165438Y High precision capacitance type pressure transducer
05/18/1994CN1024592C Transducer for Measuring pressure
05/18/1994CA2103317A1 Capillary rheometer plunger pressure transducer and measurement technique
05/17/1994US5313023 Load cell
05/17/1994US5312334 Peristaltic pump apparatus having an improved misloaded IV tube detecting circuit
05/11/1994WO1994010548A1 Resistive strain gauge pressure sensor
05/11/1994EP0596711A2 Capacitive pressure transducer apparatus
05/11/1994EP0596456A1 Method of manufacturing an integrated capacitive transductor
05/11/1994DE4333753A1 Capacitive difference pressure sensor - has carrier supporting counter-electrodes between facing membranes carrying capacitor electrodes
05/11/1994DE4244459C1 Druckmeßumformer Pressure transducer
05/10/1994US5311452 Plasma processing apparatus using capacitance manometer and pressure control method thereof
05/10/1994US5311014 Optical transducer for measuring pressure
05/10/1994US5310610 Silicon dioxide, aluminum dioxide
05/10/1994US5309772 Self-exciting optical strain gage
05/10/1994US5309767 Pressure sensor using liquid crystals
05/10/1994CA1329326C Fluid-pressure detector
05/04/1994EP0483188B1 Pressure and heat flow sensor for the combustion chamber of internal combustion engines
05/04/1994EP0437476B1 Vibrating strip transducer
05/04/1994CN2164035Y High-precision viscous flow pressure sensor
05/04/1994CN1024435C Secondary prepressing-type pressure-measuring instrument
05/03/1994US5307684 Stop mechanism for a diaphragm pressure transducer
04/1994
04/27/1994EP0594331A1 Piezoelectric sensor
04/27/1994EP0593889A1 Piezoelectric pressure sensor and method of assembling same
04/27/1994EP0593676A1 Method and apparatus for measurement of forces and pressures using tensioned bellows
04/27/1994EP0458931B1 Arrangement for processing sensor signals
04/27/1994EP0177491B2 Pressure compensated differential pressure sensor and method
04/27/1994CN1086012A Pulsed pressure sensor circuit and method therefor
04/26/1994US5305643 Pressure micro-sensor
04/26/1994US5305642 Portable high precision pressure transducer system
04/21/1994DE4335588A1 Press. sensor, e.g. for measuring combustion press. in IC engine - has metal membrane covering housing opening, and non- compressible medium transferring press. to semiconducting membrane
04/19/1994US5303595 Pressure sensor utilizing magnetostriction effect
04/19/1994US5303594 Pressure transducer utilizing diamond piezoresistive sensors and silicon carbide force collector
04/19/1994US5303593 Strain gauge distribution for resistive strain gauge pressure sensor
04/14/1994WO1994008076A1 Heteroepitaxially deposited diamond
04/14/1994DE4244460C1 Druckmeßumformer Pressure transducer
04/14/1994DE4234290A1 Crystalline membrane pressure sensor assemmbly has flush sealed face - uses tapered sensor fixing hole to compress gasket suited for food and medical processing
04/13/1994EP0515416B1 Integratable capacitative pressure sensor and process for its manufacture
04/13/1994EP0354229B1 Hydrophonic probe
04/12/1994US5301554 Differential pressure transducer
04/07/1994DE4233085A1 Heteroepitaktisch abgeschiedenes Diamant Heteroepitaxial diamond deposited
04/06/1994EP0590292A2 Pulsed pressure sensor circuit and method therefor
04/06/1994CN2160897Y Distance-transmission pressure gauge
04/05/1994US5299868 Crystalline transducer with ac-cut temperature crystal
04/05/1994US5299460 Circuit for pulse width modulating a sensor
03/1994
03/31/1994DE4315041C1 Sensor cell, e.g. for force and press. measurement - contains press. sensor with air=tight membrane and reference cap with further membrane on carrier with conducting tracks
03/29/1994US5297720 Method of assembling a mechanical part including a sensitive element on a support to define a variable capacitor, a mechanical part, and a tool for implementing the method
03/29/1994US5297437 Device for manometric measurement of the esophagus
03/24/1994DE4231120A1 Pressure sensor for gases or liquids - has carrier plate connected to diaphragm, and electrode surfaces of plate and diaphragm on opposite sides
03/23/1994EP0587850A1 A device with bonded conductive and insulating substrates and method therefor
03/23/1994EP0587708A1 Determination of induced change of polarization state of light
03/23/1994EP0436588B1 Low stress polysilicon microstructures
03/23/1994EP0395671B1 Compact air data sensor
03/22/1994US5296730 Semiconductor pressure sensor for sensing pressure applied thereto
03/22/1994US5296408 Fabrication method for vacuum microelectronic devices
03/22/1994US5295395 Diaphragm-based-sensors
03/22/1994CA1327895C Pressure sensor and method for the manufacture thereof
03/17/1994WO1994005988A1 Pedestal mount capacitive pressure sensor
03/17/1994WO1994005987A1 Transducer assembly and method
03/17/1994WO1994005986A1 High overpressure low range pressure sensor
03/17/1994CA2141688A1 High overpressure low range pressure sensor
03/16/1994EP0587054A2 Device for measuring pressure
03/16/1994EP0586828A2 Hydrophone
03/16/1994EP0447545B1 Integral intracranial pressure monitor and drainage catheter assembly
03/10/1994DE4229487A1 Signal evaluation for vehicle pressure sensor - passing fluid-pressure signal from fluid-pressure sensor located in tank ventilation chamber to band=pass filter for acceleration measurement and to low=pass filter for pressure measurement
03/08/1994US5293448 Speech analysis-synthesis method and apparatus therefor