Patents
Patents for G01L 13 - Devices or apparatus for measuring differences of two or more fluid pressure values (2,634)
08/1994
08/11/1994DE4402085A1 Kapazitiver, an seiner Oberfläche mikrobearbeiteter Differenzdrucksensor und Verfahren zu dessen Herstellung Capacitive, micro-machined on its surface differential pressure sensor and method for its production
08/04/1994WO1994017383A1 Pressure sensor
08/03/1994EP0608355A1 Method and apparatus for capacitance temperature compensation and manufacturability in a dual plate capacitive pressure transmitter
07/1994
07/26/1994US5332469 Capacitive surface micromachined differential pressure sensor
07/19/1994US5329818 Correction of a pressure indication in a pressure transducer due to variations of an environmental condition
06/1994
06/28/1994US5323656 Overpressure-protected, polysilicon, capacitive differential pressure sensor and method of making the same
06/23/1994DE4244257A1 Pressure and difference pressure measuring transducer
06/14/1994US5319981 Differential pressure device
06/01/1994EP0370013B1 Isolator apparatus
05/1994
05/25/1994CN2166435Y Head loss measuring apparatus for filter chamber
05/18/1994CN1024592C Transducer for Measuring pressure
05/11/1994DE4333753A1 Capacitive difference pressure sensor - has carrier supporting counter-electrodes between facing membranes carrying capacitor electrodes
05/04/1994CN2164036Y 位移式测量压力传感器 Displacement sensors to measure pressure
04/1994
04/27/1994EP0593676A1 Method and apparatus for measurement of forces and pressures using tensioned bellows
04/27/1994EP0177491B2 Pressure compensated differential pressure sensor and method
03/1994
03/30/1994CN2160113Y Pressure difference meter
03/17/1994WO1994005988A1 Pedestal mount capacitive pressure sensor
03/16/1994CN2159020Y Combined gas micro-pressure gauge
02/1994
02/22/1994US5287746 Modular transmitter with flame arresting header
02/16/1994EP0494926B1 Capacitive pressure transducer system
02/03/1994WO1993024818A3 Correction for a pressure transducer
01/1994
01/26/1994EP0580475A1 Device for measuring the flow rate of a liquid
01/25/1994US5281922 Method for capacitance temperature compensation and manufacturability in a dual plate capacitive pressure transmitter
01/19/1994EP0579536A1 Device and method to suppress sudden pressure changes in vehicles, in particular land vehicles
01/11/1994US5277068 Capacitive pressure sensor and method of manufacturing the same
12/1993
12/09/1993WO1993024818A2 Correction for a pressure transducer
12/09/1993CA2133732A1 Correction for a pressure transducer
12/08/1993CN1079298A Correction for a pressure transducer
11/1993
11/23/1993CA1324498C Pressure transmitter assembly
11/18/1993EP0569899A1 An overpressure-protected, polysilicon, capacitive differential pressure sensor and method of making the same
11/13/1993CA2095783A1 Overpressure-protected, polysilicon, capacitive differential pressure sensor and method of making the same
11/11/1993WO1993022643A1 Method and apparatus for measurement of forces and pressures using tensioned bellows
11/10/1993CN2145995Y Complex differential pressure meter
11/02/1993US5257546 Pressure measuring sensor
10/1993
10/28/1993WO1993021506A1 Modular transmitter with flame arresting header
10/28/1993CA2118009A1 Modular transmitter with flame arresting header
10/20/1993CN1077531A Modular transmitter with flame arresting header
10/13/1993EP0565271A1 Differential pressure transducer assembly
09/1993
09/29/1993EP0316343B1 Media isolated pressure sensors
09/28/1993CA2091625A1 Differential pressure transducer assembly
09/28/1993CA1322472C Isolator apparatus
09/08/1993CN2141893Y Vernier chattock gauge
09/07/1993CA1321891C Differential pressure detector
09/02/1993WO1993017313A1 Pressure difference sensor
09/02/1993DE4206675A1 Druckdifferenz-sensor Differential pressure sensor
08/1993
08/17/1993US5237285 Method and apparatus for capacitance temperature compensation and manufacturability in a dual plate capacitive pressure transmitter
07/1993
07/21/1993EP0164413B2 Pressure transducer
07/20/1993CA1320453C Adapter assembly for filter arrangement
06/1993
06/22/1993US5220838 Overpressure-protected, differential pressure sensor and method of making the same
06/22/1993US5220837 Differential pressure transducer assembly
06/09/1993CN2135777Y Float type micro pressure different measurer
04/1993
04/29/1993WO1993008479A1 Method and apparatus for capacitance temperature compensation and manufacturability in a dual plate capacitive pressure transmitter
04/29/1993CA2119437A1 Method and apparatus for capacitance temperature compensation and manufacturability in a dual plate capacitive pressure transmitter
04/22/1993DE4227893A1 Differential pressure sensor e.g. for vehicle fuel tank - contains two semiconducting membranes with sensor elements on upper sides in common reference chamber, lower sides exposed to different pressures
03/1993
03/02/1993US5189777 Method of producing micromachined differential pressure transducers
02/1993
02/17/1993CN2127171Y High-pressure micro-difference pressure sensor
02/09/1993US5185709 Apparatus and method for measuring pressure changes within pressure vessels
12/1992
12/09/1992CN1066922A Pressure sensor with high modulus support background of invention
12/08/1992US5168753 Measuring device for detecting parameters charterizing the operating behavior of hydraulic assembles
12/01/1992US5168525 Boundary-layer microphone
11/1992
11/24/1992CA1310515C Differential pressure gauge transmitter
11/17/1992US5163326 Line pressure compensator for a pressure transducer
11/11/1992CN1066124A Multi-function differential pressure sensor
11/10/1992CA1309878C Dual sided pressure sensor
11/04/1992EP0323963B1 Flangeless transmitter coupling to a flange adapter union
10/1992
10/27/1992US5157972 Pressure sensor with high modules support
10/15/1992WO1992017757A1 Differential pressure device
10/15/1992WO1992017756A1 Pressure sensor with high modulus support
10/15/1992CA2105483A1 Pressure sensor with high modulus support
10/14/1992EP0508517A2 Compensated differential pressure transducer
10/14/1992CN1065334A Modular pressure instrument
10/06/1992US5153823 Device to measure and/or control flow-through and/or quantity of heat
09/1992
09/30/1992EP0506491A2 An overpressure-protected differential pressure sensor and method of making the same
09/30/1992CN1018478B Sensor manometric box for testing pressure
09/17/1992WO1992015850A1 Line pressure compensator for a pressure transducer
09/17/1992CA2101440A1 Line pressure compensator for a pressure transducer
08/1992
08/25/1992CA1306616C Flangeless transmitter coupling to a flange adapter union
08/20/1992DE4104811A1 Differential pressure measurement cell with two membranes - has flexural element with fluid connection to transfer vol. region via gap designed for ignition and combustion safety
08/18/1992US5138886 Electronic manometer
08/13/1992DE4101147A1 System for measuring smallest pressure differences for pref. mobile application - using inclined tube manometer with its reservoir and manometer tube connected to measurement object for supplying pressure across separate measuring line
08/11/1992US5138155 Pressure gauge with fiber optic sensor
07/1992
07/22/1992EP0494926A1 Capacitive pressure transducer system.
07/14/1992CA1304957C Dual bourdon tube type sensing pressure transducer
07/01/1992EP0492279A1 Measuring device for establishing characteristic magnitudes which display the working of hydraulic systems
06/1992
06/30/1992US5125753 Device to measure flow-through and/or quantity of heat
06/25/1992WO1992010731A1 Pressure transmitter with stress isolation depression
06/24/1992CN1062208A Pressure transmitter with stress isolation depression
06/17/1992EP0490486A2 Micromachined differential pressure transducers and method of producing the same
06/07/1992CA2094924A1 Pressure transmitter with stress isolation depression
05/1992
05/26/1992US5115675 Tensioned bellows pressure transducer
05/19/1992CA1300925C Media isolated differential pressure sensors
05/12/1992US5111698 Differential pressure measuring apparatus
04/1992
04/07/1992US5101665 Semiconductor pressure sensor
03/1992
03/24/1992US5097712 Differential pressure measuring apparatus
03/10/1992US5094109 Pressure transmitter with stress isolation depression
03/10/1992CA1296917C Differential pressure sensor
03/03/1992US5092178 Differential pressure sensor mechanisms
02/1992
02/18/1992US5089214 Apparatus for monitoring the pressure within a cask containing radioactive material
02/05/1992CN1058484A Apparatus and method for monitoring pressure within cask containing potentially hazardous gas
01/1992
01/29/1992EP0468233A2 Cask for storage or transport of radioactive materials
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