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)
11/1982
11/30/1982US4361050 Device for measuring the flow rate of a fluid and air flow sensor system in an internal combustion engine utilizing such a device
11/30/1982US4361047 Differential pressure to electrical signal transducer
11/25/1982WO1982004125A1 High accuracy differential pressure capacitive transducer and methods for making same
11/24/1982EP0065511A1 Transducer with a piezo-electric sensitive element
11/23/1982US4360247 Evanescent fiber optic pressure sensor apparatus
11/17/1982EP0064807A2 Improvements in or relating to profile change sensors
11/16/1982US4359498 Transducer structure employing vertically walled diaphragms with quasi rectangular active areas
11/16/1982US4358960 Differential fiber optic proximity sensor
11/16/1982CA1135529A1 Semiconductor pressure detector apparatus with zero-point temperature compensation
11/11/1982WO1982003916A1 Pressure transducer
11/09/1982US4358814 Capacitive pressure sensor
11/09/1982US4358678 Fiber optic transducer and method
11/09/1982US4357834 Displacement converter
11/02/1982US4357606 Multi-station telemetry system using fibre optics cables
11/02/1982CA1134938A1 Remote acoustic wave sensors
10/1982
10/28/1982WO1982003694A1 Linear capacitive sensor system
10/28/1982WO1982003684A1 Apparatus for sensing the condition of a fluid
10/26/1982US4355537 Temperature compensation for transducer components
10/26/1982CA1134164A1 Force responsive transducer
10/19/1982US4354506 Intracranial pressure gauge
10/19/1982US4354389 Vapor pressure sensor and flow measuring devices
10/19/1982CA1134021A1 Pressure transducer having electrically shielded piezoresistive sensors
10/13/1982EP0062432A1 Vibrating vane pressure gauge
10/12/1982US4353148 Electric pressure switch
10/06/1982EP0061940A1 Differential pressure measuring system
10/05/1982US4353050 Displacement measuring transducer
10/05/1982CA1132810A1 Liquid filled pressure transducer
09/1982
09/29/1982EP0061359A1 Capacitive pressure transducer
09/29/1982EP0060859A1 Elektromechanical converter
09/28/1982US4352168 Diver's bottom timer/depth gauge or the like and direct digital input and tracking system therefor
09/28/1982US4352085 Pressure transducer
09/28/1982US4351191 Pressure sensor
09/22/1982EP0060418A1 Pressure transducer
09/22/1982EP0060256A1 Inductive pressure gauge.
09/16/1982WO1982003121A1 Bridge circuit compensation for environmental effects
09/15/1982EP0060217A1 Vibrating element for pressure detector, and pressure detector comprising such an element
09/15/1982EP0059769A1 Differential pressure detector
09/14/1982US4349881 Vibration instruments
09/14/1982CA1131759A1 Semiconductor absolute pressure transducer assembly and method
09/08/1982EP0059539A1 Pressure sensing device
09/08/1982EP0059488A1 Capacitive pressure sensor
09/07/1982US4348673 Instrumentation system with electric signal transmitter
09/07/1982US4347745 Pressure measuring apparatus
08/1982
08/31/1982US4347478 Capacitive gauge
08/31/1982CA1130610A1 Self-standardizing pressure sensor for use in an electronic fuel control system
08/24/1982US4345482 Fiber optical devices for measuring physical phenomenon
08/24/1982US4345477 Semiconduction stress sensing apparatus
08/24/1982US4345476 Differential pressure transducer with high compliance, constant stress cantilever beam
08/24/1982CA1130108A1 Electrooptic instruments
08/17/1982US4345299 Capacitive pressure transducer assembly with improved output lead design
08/10/1982US4343875 Method for the etching of silicon substrates and substrate for the execution of the method
08/05/1982WO1982002595A1 Reactance measurement circuit
08/04/1982EP0057125A1 Transducer for a digital pressure measuring device
08/03/1982US4342231 Differential pressure transmitter
08/03/1982US4342230 Pressure sensor and sensing method
07/1982
07/28/1982EP0056383A1 Sensor.
07/20/1982US4340877 Hall generator pressure transducer
07/20/1982US4340409 Capsules
07/20/1982US4339956 Pressure sensor
07/20/1982US4339955 Pressure sensor
07/07/1982EP0055604A2 Pressure regulating systems
07/06/1982US4338575 Process for compensating temperature variations in surface wave devices and pressure transducer utilizing this process
07/06/1982US4337665 Semiconductor pressure detector apparatus with zero-point temperature compensation
07/06/1982CA1127263A1 Improvements introduced in the detection of leakages of the cooling liquid in blastfurnace nozzles
07/06/1982CA1126975A1 Surface acoustic wave (saw) pressure sensor structure
06/1982
06/24/1982WO1982002093A1 Method for measuring the partial pressure of a gas and probe for implementing such method
06/22/1982US4336567 Differential pressure transducer
06/22/1982US4335608 Submersible pressure transducer device
06/22/1982CA1126049A1 Instrumentation system with electric signal transmitter
06/16/1982EP0053976A2 A device to sense and determine the pressure of a fluid
06/15/1982US4334426 Karman vortex type flow measuring apparatus
06/09/1982EP0053486A2 Stress sensing apparatus
06/08/1982US4333349 Binary balancing apparatus for semiconductor transducer structures
06/08/1982CA1125049A1 Silicon transducer
06/02/1982EP0052957A1 Method and apparatus for leak detection in pipelines
06/02/1982EP0052609A1 Apparatus for indicating quantity of liquified gas contained in a storage container.
05/1982
05/25/1982US4332000 Capacitive pressure transducer
05/25/1982US4331022 Sensor using two tunable oscillators connected to a frequency mixer comprising a device for calibrating the frequency of the output signal and a process for calibrating this frequency
05/18/1982US4330774 Tire pressure sensing system
05/18/1982US4329775 Pressure measuring apparatus using vibratable wire
05/12/1982EP0051289A1 Auto-zero system for pressure transducers
05/11/1982US4329732 Precision capacitance transducer
05/11/1982CA1123225A1 Compensated capacitive transducer demodulator circuit
04/1982
04/28/1982EP0050136A1 Silicon pressure sensor
04/28/1982EP0050135A1 Temperature compensating pressure sensor amplifier circuits
04/27/1982US4327350 Pressure transducer
04/27/1982US4326423 Pressure transducer with elastic surface waves and ignition system for internal combustion engine utilizing this transducer
04/27/1982US4326419 Electromechanical pressure transducer
04/27/1982CA1122429A1 Surface acoustic wave (saw) pressure sensor structure
04/21/1982EP0049955A1 Dual cavity pressure sensor
04/20/1982US4326171 Temperature compensating pressure sensor amplifier circuits
04/20/1982US4325382 Process and apparatus for the real time adaptive filtering of catheter pressure measurements
04/20/1982US4325260 Pressure transducer
04/15/1982WO1982001250A1 Capacitive pressure transducer with isolated sensing diaphragm
04/14/1982EP0049501A2 Arrangement for measuring the pressure evolution inside cylindrical hollow objects
04/14/1982EP0049344A2 Capacitive pressure transducers and methods of fabricating them
04/06/1982US4322980 Semiconductor pressure sensor having plural pressure sensitive diaphragms and method
04/06/1982US4322979 Optical device for measuring slight differences of pressure by means of a change in light intensity
04/06/1982US4322978 Optical device for measuring slight pressure differences by means of light intensity changes
04/06/1982US4322977 Pressure measuring system