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)
02/1984
02/29/1984EP0101669A2 Measuring device using a temperature-compensated piezoelectric resonator
02/28/1984US4434451 Pressure sensors
02/28/1984US4433580 Pressure transducer
02/21/1984US4433321 Pressure transducer
02/21/1984US4432372 Two-lead power/signal multiplexed transducer
02/21/1984US4432238 Capacitive pressure transducer
02/21/1984CA1162413A1 Tilt invariant pressure sensing device
02/15/1984EP0100429A2 Transducer
02/14/1984US4431981 Pressure unit assembly
02/14/1984US4430900 Pressure responsive switching device particularly pressostat or thermostat
02/14/1984US4430899 Fluid pressure sensor, particularly diesel engine injection pump pressure sensor
02/02/1984WO1984000291A1 Disposable physiological pressure sensing system
01/1984
01/31/1984US4428239 Differential pressure measuring apparatus
01/31/1984CA1161273A1 Differential pressure transducer with high compliance, constant stress cantilever beam
01/25/1984EP0099330A2 Pressure-sensitive element and pressure transducer using such an element
01/24/1984US4426952 Temperature compensated differential pressure indicating device
01/24/1984US4426768 On silicon wafer bonding doped silicon layer, borosilicate glass and second doped silicon layer, then stripping silicon wafer
01/18/1984EP0098796A1 Sensitive element for a stress transducer, and transducer employing it
01/17/1984US4426673 Capacitive pressure transducer and method of making same
01/17/1984US4426406 Method of fabricating a pressure sensor
01/17/1984US4425800 Means for ascertaining the internal pressure in a pressure pipe system
01/17/1984US4425799 Liquid capacitance pressure transducer technique
01/10/1984US4424717 Force transducer
01/10/1984US4424713 Silicon diaphragm capacitive pressure transducer
01/10/1984CA1160348A1 Pressure measuring system
01/04/1984EP0097479A2 Adjustable process variable transmitter
01/04/1984EP0097339A2 Multiple range capacitive pressure transducer
01/03/1984US4423638 Capacitive system for manometric detection and measurement of differential pressures
12/1983
12/27/1983US4422335 Pressure transducer
12/27/1983CA1159524A1 Method of fabricating a pressure sensor
12/22/1983WO1983004435A1 Transducer calibration system
12/20/1983US4422125 Pressure transducer with an invariable reference capacitor
12/20/1983US4420980 Arrangement for measuring the pressure in cylindrical cavities
12/13/1983US4420790 High sensitivity variable capacitance transducer
12/08/1983WO1983004308A1 Liquid capacitance pressure transducer technique
12/07/1983EP0095966A1 Pressure transducer with an invariable reference capacitor
12/06/1983US4419620 Linearizing circuits for a semiconductor pressure transducer
12/06/1983CA1158061A1 Industrial process control instrument employing a resonant sensor
12/01/1983EP0070301A4 Reactance measurement circuit.
11/1983
11/23/1983EP0094446A1 Pressure detector with a membrane and an overload stopper
11/23/1983EP0094429A1 Apparatus for conveying fluid pressures to a differential pressure transducer.
11/22/1983US4416156 High pressure electrical feedthru
11/21/1983EP0050135A4 Temperature compensating pressure sensor amplifier circuits.
11/16/1983EP0094315A2 Apparatus for measuring and displaying a level and/or other analogous characteristic of a liquid in a reservoir, particularly of oil in an engine crank-case of an automotive vehicle
11/15/1983US4415948 Electrostatic bonded, silicon capacitive pressure transducer
11/15/1983US4414853 Pressure transmitter employing non-linear temperature compensation
11/15/1983US4414851 Gauge pressure sensor
11/15/1983US4414840 Knock detecting apparatus for internal combustion engines
11/15/1983US4414837 Apparatus and methods for the shunt calibration of semiconductor strain gage bridges
11/09/1983EP0093450A2 Differential pressure apparatus
11/08/1983US4413528 Miniature pressure transducer
11/08/1983US4413527 Semiconductor pressure sensor
11/08/1983CA1156487A1 Auto-zero system for pressure transducers
11/01/1983US4413202 Transducer with a flexible sensor element for measurement of mechanical values
11/01/1983US4412454 Pressure sensing unit for a pressure sensor
10/1983
10/26/1983EP0092505A1 Fibre-optical transducer
10/25/1983US4412203 Housing and interconnection assembly for a pressure transducer
10/25/1983US4411158 Apparatus for sensing the condition of a fluid
10/19/1983EP0091725A2 Measuring instrument using a pneumatically driven resonant element
10/18/1983US4410871 Semiconductor transducers employing ion implantation terminal configurations
10/18/1983US4409840 Vibrating vane pressure gauge
10/18/1983US4409816 Knock detecting apparatus for an internal combustion engine
10/12/1983EP0091396A1 Pressure or pressure difference measuring transducer
10/12/1983EP0090872A1 High pressure detector
10/12/1983EP0090871A1 High-pressure detector
10/11/1983US4408496 Pressure-sensing transducer
10/11/1983US4408481 Pore pressure probe assembly and two-stage emplacement thereof
10/06/1983EP0041501A4 Piezoelectric transducer for fuel injection engine.
10/04/1983US4407296 Integral hermetic impantable pressure transducer
10/04/1983CA1154611A1 Apparatus for indicating quantity of liquified gas contained in a storage container
09/1983
09/29/1983WO1983003301A1 Capacitance manometer with digital output
09/27/1983US4406993 Oil filled pressure transducers
09/27/1983US4406992 Semiconductor pressure transducer or other product employing layers of single crystal silicon
09/27/1983US4406157 Feedback method and apparatus for testing the internal pressure of a sealed container
09/27/1983CA1154545A1 Semiconductor variable capacitance pressure transducer assembly
09/27/1983CA1154502A1 Semiconductor variable capacitance pressure transducer
09/20/1983US4405970 Silicon-glass-silicon capacitive pressure transducer
09/20/1983US4404854 Transducer device for measuring mechanical values on hollow bodies
09/14/1983EP0088362A1 Nonintrusive pressure measurement
09/14/1983EP0088270A2 Pressure sensor
09/13/1983US4404539 Semiconductor strain gauge
09/13/1983US4404481 Capacitance to voltage conversion apparatus
09/13/1983US4403513 Capacitive differential pressure transducer
09/13/1983US4403512 Servo-type capsule-equipped instrument
09/13/1983CA1153833A1 Method for manufacturing variable capacitance pressure transducers and an intermediate article of manufacture produced thereby
09/07/1983EP0087612A2 Pressure-to-frequency transducer
09/06/1983US4402226 Ice stress gauge
08/1983
08/30/1983US4400869 Process for producing high temperature pressure transducers and semiconductors
08/30/1983CA1152775A1 Vapor pressure sensor and flow measuring device
08/24/1983EP0086462A2 Pressure sensor employing semiconductor strain gauge
08/23/1983US4400682 Pressure sensor
08/23/1983US4400681 Semiconductor pressure sensor with slanted resistors
08/23/1983US4399707 Stress sensitive semiconductor unit and housing means therefor
08/23/1983US4399706 Pressure indicator for measurement of hot pressure mediums
08/23/1983US4399606 Method of making a responsive control device
08/16/1983US4399515 Self-correcting electronically scanned pressure sensor
08/16/1983US4398427 Thin shell pressure sensor
08/16/1983US4398426 Linear capacitive pressure transducer system
08/16/1983CA1152180A1 Pressure transducer
08/09/1983US4398194 Differential pressure sensing apparatus