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)
11/1985
11/05/1985US4550611 Electronic pressure transducer
11/05/1985US4550610 Resonator pressure transducer
10/1985
10/30/1985EP0159401A1 Measurement apparatus
10/29/1985US4549430 Sensor
10/22/1985US4548086 Deflecting spring
10/16/1985EP0158586A1 Pressure or differential-pressure measuring device
10/15/1985US4547691 Piezoelectric pressure and/or temperature transducer
10/15/1985US4546658 Piezoelectric force/pressure sensor
10/15/1985US4546653 Semiconductor differential pressure transducer
10/15/1985US4546651 Transducer coupling
10/10/1985WO1985004474A1 Pressure compensated differential pressure sensor and method
10/10/1985CN85103486A Direct-reading digital sensor
10/09/1985EP0157726A1 Pressure or differential-pressure measuring device
10/09/1985EP0157606A2 High temperature pressure transducers and systems for determining deflection of pressure transducer diaphragms
10/09/1985EP0157599A2 Pressure transducer
10/09/1985EP0157533A2 Pressure measuring apparatus, e.g. a barometer
10/08/1985US4545389 Disposable physiological pressure sensing system
10/08/1985US4545255 Low pressure transducer
10/08/1985US4545254 Quantum ferroelectric pyrochlore ceramics
10/08/1985CA1194708A1 Piezoelectric pressure and/or temperature transducer
10/08/1985CA1194707A1 Piezoelectric transducer notably for pressure measurement
10/02/1985EP0156757A2 Capacitive pressure sensor with low parasitic capacitance
10/02/1985EP0156081A1 Pressure transducer
10/01/1985US4544875 Variable current transducer system
10/01/1985US4543832 Overload protected pressure transducer
10/01/1985US4543831 Optical pressure transducer
09/1985
09/24/1985US4543116 Welding and fluid tightness process for the production of sensors
09/24/1985CA1194135A1 Pressure transducer catheter with piezoelectric polymeric membrane
09/24/1985CA1193879A1 Process control instrument using a pneumatically driven resonant element
09/17/1985US4542436 Linearized capacitive pressure transducer
09/17/1985US4542435 Pressure transducer and mounting
09/17/1985US4541288 Operating circuit for magnetoelastic force/pressure sensors
09/17/1985US4541284 Device for monitoring the pressure of fluid in a duct
09/17/1985US4541283 Pressure sensor
09/17/1985CA1193464A1 Semiconductor pressure transducer
09/10/1985US4539998 Pressure transducer assembly
09/03/1985US4538466 Capacitance pressure transducer and method of fabrication therefor
09/03/1985US4538465 Electronic transmitter for transmitting pressure values of industrial process fluids
08/1985
08/27/1985US4538063 Photo transducer circuit for setting minimum and maximum current flow between power terminals
08/27/1985CA1192418A1 Temperature controlled pressure transducer
08/21/1985EP0151868A2 Pressure monitoring of closed containers
08/21/1985EP0151575A1 Reactance measurement circuit with enhanced linearity.
08/20/1985US4536820 Electrical feedthrough means for pressure transducer
08/20/1985US4536719 Inductive pressure sensor using two oscillators
08/20/1985US4535633 Method and apparatus for the protection of analyzers and other sensitive components from soiling and corrosion
08/20/1985US4535632 Surface acoustic wave sensors
08/20/1985US4535631 Surface acoustic wave sensors
08/20/1985CA1192055A1 Pressure and differential pressure detectors and transmitter for use in hostile environment
08/13/1985US4534223 Surface acoustic wave sensors
08/13/1985CA1191710A1 Apparatus for conveying fluid pressures to a differential pressure transducer
08/07/1985EP0150827A2 Method of making silicon diaphragm pressure sensor
08/06/1985US4533795 Integrated electroacoustic transducer
08/06/1985US4532810 Device for the pick-up of measured values
08/06/1985US4532809 Pressure measuring systems with increased accuracy for a constant resolution
08/01/1985WO1985003381A1 Method and apparatus for forming hermetically sealed electrical feedthrough conductors
08/01/1985WO1985003358A1 Capacitive transducer and method
07/1985
07/31/1985EP0149620A1 Device for measuring the pressure in a gas medium
07/30/1985US4531416 Pressure transducer
07/30/1985US4531415 Differential pressure transducer
07/30/1985US4531267 Method for forming a pressure sensor
07/24/1985EP0148893A1 Integrated electroacoustic transducer.
07/23/1985US4531193 For measuring physical quantity/providing correspondence measurement data
07/23/1985US4530244 Semiconductor pressure transducer
07/23/1985CA1190764A1 Temperature compensated circuit
07/18/1985WO1985003127A1 Piezoelectric sensor
07/17/1985EP0148321A2 Pressure sensor with a resistor
07/16/1985US4530029 Capacitive pressure sensor with low parasitic capacitance
07/16/1985US4528855 Integral differential and static pressure transducer
07/16/1985CA1190406A1 Pressure transducer with an invariable reference capacitor
07/10/1985EP0147614A2 Pressure detector with a sensor quartz
07/09/1985US4527434 Cylindrical force transducer beam
07/09/1985US4527430 Transducer apparatus for measuring pressure of fluids
07/09/1985US4527428 Semiconductor pressure transducer
07/03/1985EP0146709A2 Pressure sensor
07/02/1985CA1189720A1 Digital pressure transducer
06/1985
06/26/1985EP0145861A1 Device for measuring pressures and temporal marches of pressure
06/25/1985US4525766 Method and apparatus for forming hermetically sealed electrical feedthrough conductors
06/25/1985US4525698 Pneumatic switch potentiometer
06/25/1985US4524626 Soil effective stress sensor and method of using same
06/25/1985US4524624 Pressure and differential pressure detectors and transmitter for use in hostile environment
06/25/1985CA1189352A1 Temperature compensation for diffused semiconductor strain devices
06/20/1985WO1985002677A1 Pressure transducer
06/20/1985WO1985002676A1 Pressure sensor with a substantially flat overpressure stop for the measuring diaphragm
06/19/1985EP0145146A2 Combustion pressure sensor
06/18/1985US4523964 Strain gauges insulated from diaphragm in miniaturized pressure transducer
06/18/1985US4523474 Capacitive pressure sensor
06/11/1985CA1188542A1 Disposable physiological pressure sensing system
06/05/1985EP0143738A1 Pressure sensor with a pressure-sensitive diaphragm
06/05/1985EP0143702A2 Inductive differential-pressure transducer
06/04/1985US4520675 Pressure or pressure difference measuring transducer
06/04/1985US4520657 Apparatus for determining the pressure of capillary water, especially in soil
05/1985
05/29/1985EP0142692A1 Mounting of semiconductor components on a circuit board
05/28/1985US4519401 For monitoring intracranial pressure in a subject
05/28/1985US4519256 Pressure transducer including a proximity sensor
05/28/1985US4519255 Pressure transducer
05/28/1985US4519254 High pressure transducer
05/28/1985US4519253 Reactance measurement circuit with enhanced linearity
05/28/1985CA1187714A1 High accuracy differential pressure capacitive transducer and methods for making same
05/21/1985CA1187308A1 Force transducer
05/15/1985EP0140992A1 Transducer element, method for its manufacture and its use in a pressure pick-up device