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)
10/1987
10/14/1987EP0241065A2 Harmonic oscillator for measuring physical parameters
10/08/1987WO1987005998A1 Pressure sensor
10/08/1987WO1987005997A1 Pressure sensor
10/08/1987DE3611656A1 Hydraulic sensor for mining equipment, in particular for hydraulic face supports
10/07/1987EP0239933A2 Pressure transducer
10/06/1987CA1227663A1 Variable current pressure transducer system
09/1987
09/30/1987EP0239094A2 Semiconductor strain gauge bridge circuit
09/30/1987EP0238846A2 Axial pressure sensor
09/30/1987EP0238746A2 Gas pressure transducer
09/30/1987EP0041501B1 Piezoelectric transducer for fuel injection engine
09/29/1987US4696787 For long term storage and monitoring of nulcear fuel materials
09/29/1987US4696192 Fluid pressure sensor
09/29/1987CA1227354A1 Linearized capacitive pressure transducer
09/23/1987EP0238297A2 Gas pressure gauge
09/22/1987US4695817 Environmentally protected pressure transducers employing two electrically interconnected transducer arrays
09/22/1987US4694694 Solid state accumulating altimeter
09/22/1987CA1227062A1 Fiber optics condition sensor and method of making same
09/22/1987CA1227057A1 Fused silica diaphragm module for high temperature pressure transducers
09/15/1987US4694159 Optic sensor with reference and detecting optic circuits
09/15/1987US4693121 Differential-pressure measuring apparatus with improved overpressure protection
09/08/1987US4691709 Apparatus for measuring velocity of blood flow in a blood vessel
09/08/1987US4691575 Transducer inserts; methods of making them and sensors for measuring mechanical variables
09/08/1987US4691574 Capacitance transducer
09/08/1987US4691573 Pressure sensor
09/02/1987EP0234821A2 Detector for cracks in hollow blades
09/02/1987EP0234693A2 A device for measuring stresses in vacuum deposition coatings
09/01/1987US4690004 Variable-reluctance transducer
09/01/1987US4689999 Temperature compensated pressure transducer
08/1987
08/27/1987WO1987005104A1 Measuring element for hydraulic systems
08/26/1987EP0142560B1 Hollow cylindrical body for a measuring transducer used to measure the pressure of a fluid
08/26/1987CN86210439U Dual limits pressure alarm
08/20/1987DE3605344A1 Messgeber fuer hydrauliksysteme Transducers for hydraulic systems
08/20/1987DE3604608A1 Measuring method and design of a highly precise pressure gauge having a short time constant and large pressure ranges
08/19/1987EP0233166A2 A combined electromagnet and fluid pressure gauge
08/19/1987EP0233054A2 Gas pressure gauge
08/19/1987EP0232610A2 Force sensor using a vibrating element
08/18/1987US4687927 Pressure measuring system
08/18/1987US4686861 Gasket type pressure sensor
08/18/1987US4686858 Flight instrument using light interference for acceleration sensing
08/18/1987US4686764 Membrane protected pressure sensor
08/13/1987DE3604088A1 Pressure sensor
08/13/1987DE3604048A1 Device for electrical indication and limit-value-monitoring of a non-electrical quantity
08/12/1987EP0232142A2 Pressure transducer
08/11/1987US4685469 Piezoresistive pressure measuring cell
08/11/1987CA1225255A1 Pressure transducer
08/06/1987DE3602703A1 Pressure-controlled infrared low-pass filter having a variable lower pass energy
08/05/1987EP0231074A2 Lubrication pressure sensor apparatus
08/05/1987CN86204290U Hall effect ic pressure gauge
08/04/1987US4684842 Gas pressure transducer
08/04/1987US4683894 Disposable physiological pressure sensing system
08/04/1987US4683758 Device for measuring stresses in vacuum deposition coatings
08/04/1987US4683757 Axial pressure sensor
08/04/1987US4683755 Biaxial strain gage systems
08/04/1987US4683754 Capacitive displacement transducer
07/1987
07/29/1987EP0230084A1 Blister FET pressure sensor
07/29/1987EP0229822A1 Method and apparatus for sensing a measurand.
07/29/1987CN86100136A Oil-chamberless diaphragm type soil-pressure transducer
07/28/1987US4682502 Pressure sensor
07/28/1987US4682500 Pressure sensitive element
07/23/1987DE3601249A1 Pressure sensor for hydraulically operated devices in underground mining
07/21/1987US4680972 Pressure transducer
07/21/1987US4680971 Dual diaphragm differential pressure transducer
07/21/1987US4680970 Apparatus for measuring pressure
07/16/1987WO1987004300A1 Procedure for manufacturing a piezoresistive resistance element and apparatus applying said procedure, and pick-up manufactured by the procedure, in particular a pressure pick-up or equivalent
07/15/1987EP0228677A2 Optical pressure-sensing system
07/14/1987US4680606 Semiconductor transducer
07/14/1987US4680569 Semiconductor pressure sensor
07/14/1987US4679567 Pressure transducer
07/14/1987US4679438 High pressure transducer
07/14/1987CA1224057A1 Method and apparatus for obtaining electrical signals correlated with the position of a mercury mass in instruments and the like
07/14/1987CA1224056A1 Transducer
07/09/1987DE3600830C1 Tyre-pressure measuring and indicating device
07/07/1987US4678904 Optical measuring device using a spectral modulation sensor having an optically resonant structure
07/01/1987EP0227556A1 Optical sensor for physical magnitudes
06/1987
06/30/1987US4676108 Multilayer diaphragm for pressure transducer
06/30/1987CA1223463A1 Cylindrical force transducer beam
06/30/1987CA1223453A1 Pressure sensor with a substantially flat overpressure stop for the measuring diaphragm
06/30/1987CA1223452A1 Piezoelectric pressure frequency sensor
06/24/1987EP0226572A2 Measurement apparatus using a flexible piezoelectric film as sensor element
06/24/1987EP0226010A2 Pressure responsive assembly
06/23/1987US4675643 Pressure transducer utilizing a transduction element
06/23/1987US4675385 Chromatography
06/23/1987US4674900 Optoelectromechanical apparatus for measuring physical parameters, especially pressure or force
06/23/1987US4674335 Oil pressure sensor
06/18/1987WO1987003679A1 Fluid volume measurement device
06/16/1987US4672853 Apparatus and method for a pressure-sensitive device
06/11/1987DE3543261A1 Pressure sensor
06/10/1987EP0225216A1 Differential manometers for small gas pressures
06/10/1987EP0225095A2 Biaxial strain gage systems
06/10/1987EP0224575A1 Optical pressure sensor
06/10/1987EP0060256B1 Inductive pressure gauge
06/09/1987US4672411 Pressure sensor
06/09/1987US4672354 Fabrication of dielectrically isolated fine line semiconductor transducers and apparatus
06/09/1987US4672199 Fiberoptic temperature/pressure sensor system
06/09/1987US4671846 Method of bonding crystalline silicon bodies
06/09/1987US4671116 Fluid pressure transducer
06/09/1987US4670969 Method of making silicon diaphragm pressure sensor
06/02/1987US4670733 Differential pressure transducer
06/02/1987US4670730 Pressure sensor and a method of arranging a pressure sensor
06/02/1987US4669316 Differential-pressure apparatus employing a resonant force sensor