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)
01/1989
01/24/1989EP0219543A4 Sealed cavity semiconductor pressure transducers and method.
01/18/1989EP0298966A1 Pressure sensor.
01/17/1989US4798093 Apparatus for sensor compensation
01/17/1989US4798089 Isolator apparatus
01/17/1989CA1249047A1 Fluid pressure sensor with temperature indicator
01/11/1989CN1030330A Piezoelectric transducer with multiple sensitive coaxial elements
01/04/1989EP0298012A1 Temperature and pressure probe
01/04/1989EP0297948A1 Piezoelectric transducer comprising several coaxial sensitive elements
01/03/1989US4795998 Sensor array
12/1988
12/29/1988DE3719842A1 Druckmesseinrichtung Pressure measuring device
12/28/1988EP0296375A2 Mechanic-electric differential pressure transducer and method for adjusting such a transducer
12/28/1988CN88211378U Pressure gange with self-hold contacts
12/28/1988CN88211371U Pressure sensor for dualisland-girder-membrane structure pressure transducer
12/28/1988CN88211370U Resistance pressure type pressure transducer piezoelectric pressure sensor for dumbbell shape girder and membrane structure
12/28/1988CN88211369U Semiconductor pressure sensor for girder and membrane structure
12/27/1988US4794365 Pressure sensor
12/27/1988US4793194 For converting mechanical movement into electrical signals
12/27/1988US4793188 Lubrication sensor apparatus
12/27/1988US4793187 Circuit arrangement for the compensation of temperature-dependent and temperature-independent drift and for the compensation of the sensitivity of a capacitive sensor
12/21/1988EP0296034A1 Batch fabrication procedure for capacitive pressure transducers
12/21/1988EP0295895A1 Piezoceramic composite
12/19/1988EP0303615A4 Measurement circuit.
12/15/1988WO1988009921A1 Modular transmitter
12/15/1988DE3817336A1 Druckmesswertaufnehmer mit digitaler kompensation Pressure transducer with digital compensation
12/13/1988US4791352 Transmitter with vernier measurement
12/13/1988US4790192 Silicon side by side coplanar pressure sensors
12/13/1988CA1246354A1 Optical measuring device using a spectral modulation sensor having an optically resonant structure
12/07/1988CN87103776A Enhanced superhigh pressure sensor and its process and equipment
12/06/1988US4788867 Differential pressure detector
12/01/1988WO1998059228A2 Capacitive pressure transducer with improved electrode support
11/1988
11/30/1988EP0292839A2 Pressure transducer
11/30/1988EP0292606A2 Pressure meter
11/29/1988US4788521 Temperature compensation system for piezoresistive pressure sensor
11/29/1988US4787396 Fiberoptic pressure transducer
11/29/1988US4787249 Differential pressure transducer
11/23/1988EP0291885A2 Absolute capacitance manometers
11/23/1988EP0291516A1 Electrohydraulic device for continuously monitoring the pressure of the hydraulic braking system of motor vehicles.
11/22/1988US4785671 Stress-sensitive sensors utilizing amorphous magnetic alloys
11/22/1988US4785669 Absolute capacitance manometers
11/17/1988EP0291393A1 Structure of a capacitive cell for measuring differential pressures
11/17/1988EP0291175A2 Temperature-compensated manometer
11/17/1988EP0290646A1 Fiber optical pressure transducer
11/17/1988EP0290574A1 Pressure transducer with integral digital temperature compensation
11/17/1988EP0290470A1 Pressure sensor.
11/15/1988US4784811 Method of constructing improved pressure-sensitive optrode
11/15/1988US4784576 Pump pressure sensor
11/15/1988CA1244970A1 Detector for helicopter blade crack indicator
11/10/1988DE3714131A1 Pressure sensor for an internal-combustion engine having an increased thermal load capacity
11/09/1988CN88101277A Improved pump pressure sensor
11/08/1988US4782704 Mercury manometer
11/03/1988WO1988008523A1 Sensor for converting pressure and/or expansion into an electrical signal
11/02/1988EP0288827A2 Device for measuring pressures
11/02/1988EP0288514A1 Fiber optic sensor apparatus
11/01/1988US4782319 Pressure sensor
11/01/1988US4781059 Method and apparatus for detecting combustion pressure in engine
10/1988
10/25/1988US4780699 Input/output terminal assembly for flexure-type pressure transducers
10/25/1988US4780572 Device for mounting semiconductors
10/25/1988US4779464 For measuring pressure
10/20/1988WO1988008127A1 Sensor construction
10/20/1988DE3711326A1 Sensor with Kerr effect
10/19/1988EP0286867A1 Semiconductive pressure transducer with a housing, and process for its production
10/18/1988US4778987 Optical measuring device using a spectral modulation sensor having an optically resonant structure
10/18/1988US4777827 Digital pressure gauge
10/18/1988US4777826 Twin film strain gauge system
10/18/1988CA1243363A1 Disposable transducer apparatus for an electromanometry system
10/12/1988CN87102483A Electric resistance strain tube with metal wire
10/11/1988US4776219 Pressure transducer
10/11/1988US4776218 Amorphous metal elastic diaphragm divider between fluids
10/11/1988CA1243121A1 Multi-pulse excitation linear-predictive speech coder
10/05/1988EP0285470A1 Process and device for supplying respiratory oxygen
10/05/1988EP0284633A1 Pressure medium tight modular built-in adapter for a pressure transmitter and method of manufacture thereof
10/04/1988US4776019 Diaphragm for use in condenser microphone type detector
10/04/1988US4775850 Thick-film sensor, particularly a pressure sensor
10/04/1988US4775816 For sensing a fluid pressure pulse
10/04/1988US4774843 Strain gage
09/1988
09/29/1988DE3709253A1 Fabry Perot sensor
09/28/1988EP0283688A1 X-ray emitter
09/28/1988EP0283524A1 Method of and device for measuring pressures in tubular bodies
09/27/1988US4774626 Pressure sensor with improved capacitive pressure transducer
09/27/1988US4773972 Bonding a doped semiconductors
09/27/1988US4773269 Media isolated differential pressure sensors
09/22/1988WO1988007185A1 Isolator apparatus
09/21/1988EP0199772B1 High pressure sensor
09/21/1988CN88101231A Isolator apparatus
09/21/1988CN87216425U Automatic mercury barometer
09/20/1988US4772983 Method and article for a nearly zero temperature coefficient pressure transducer
09/20/1988US4772786 Photothermal oscillator force sensor
09/20/1988US4772523 Gold layers next to solder layers give malleability; capacitive pressure sensors
09/20/1988US4771639 Semiconductor pressure sensor
09/20/1988US4771638 Semiconductor pressure sensor
09/14/1988EP0282324A2 Improved pump pressure sensor
09/14/1988EP0282251A2 Fluid transducer
09/13/1988US4771261 Method for achieving the electrical and mechanical interconnection of two bodies, particularly the diaphragm and the support of a thick-film pressure sensor, and devices made by this method
09/13/1988US4770050 Force or pressure measuring device
09/13/1988US4770045 Pressure sensor
09/07/1988EP0280905A2 A method for manufacturing semiconductor absolute pressure sensor units
09/06/1988US4769738 Electrostatic capacitive pressure sensor
09/06/1988US4768389 Apparatus for measuring the material pressure in a twin-screw extrusion device
09/01/1988DE3705321A1 Instrument for measuring differences in pressure
08/1988
08/30/1988US4768011 Joint structure for diamond body and metallic body