Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411) |
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10/19/1995 | DE4413028A1 Appts. for measuring and recording machine operation hours and states |
10/18/1995 | EP0677747A2 Capacitive sensor for detecting high voltage signals |
10/18/1995 | CN2210399Y Electric appliance working condition testing element |
10/18/1995 | CN1030107C 电流测量装置 Current measuring means |
10/17/1995 | US5459395 Reduced flux current sensor |
10/17/1995 | US5459350 Resin sealed type semiconductor device |
10/11/1995 | CN1109975A DC and AC three-purpose current comparator |
10/11/1995 | CN1109974A DC current sensor |
10/04/1995 | EP0675368A1 Measuring instrument input circuit |
10/04/1995 | EP0675367A2 Voltage proportional replication device using magnetoresistive sensing elements |
10/04/1995 | CN2209335Y Full-automatic digital multitester |
10/04/1995 | CN1109599A DC current sensor |
09/28/1995 | WO1995025959A1 Current intensity measuring instrument |
09/28/1995 | DE4410180A1 Stromstärkemeßgerät Stromstärkemeßgerät |
09/27/1995 | CN1029873C Method and instrument for measuring large electric current |
09/26/1995 | US5453694 Snap-in type sparkplug voltage probe device for use in internal combustion engine |
09/26/1995 | US5453681 Current sensor employing a mutually inductive current sensing scheme |
09/20/1995 | CN2208235Y High electric resistance measuring meter |
09/19/1995 | US5451865 Method and apparatus for sensing an input current with a bridge circuit |
09/19/1995 | US5451864 Magneto-optical sensor |
09/19/1995 | US5451863 Fiber optic probe with a magneto-optic film on an end surface for detecting a current in an integrated circuit |
09/14/1995 | WO1995024723A1 Current transformer |
09/14/1995 | WO1995024654A1 Optical sensor for measuring voltage independently of the path of transmission |
09/14/1995 | DE4408127A1 Streckenneutraler optischer Spannungssensor Path neutrality optical voltage sensor |
09/12/1995 | US5450006 Apparatus and methods for measuring magnetic fields and electric currents |
09/12/1995 | US5450005 Net charge measurement of dielectrics in ground potential equilibrium, as a function of time and temperature |
09/12/1995 | US5450000 Using hall device for controlling current in a switchmode circuit |
09/08/1995 | WO1995023977A1 Faraday-effect sensing coil with stable birefringence |
09/08/1995 | WO1995023771A1 Holder for annealing fiber optic coils |
09/06/1995 | EP0670502A1 Electrical quantity measurement device |
09/06/1995 | EP0670498A1 Current sensing apparatus |
09/06/1995 | CN1107995A Transformer, especially used for detecting defect of electric wire |
09/05/1995 | US5448337 Method and apparatus for determining the charge or voltage distribution of an electrophotographic surface |
08/30/1995 | EP0669003A1 Precision ditigal multimeter and waveform synthesizer for multi-signals with distorted waveforms embedded in noise |
08/30/1995 | EP0612411B1 High-voltage measurement device |
08/30/1995 | CN2206508Y Multifunctional protector for electric machine |
08/29/1995 | US5446435 Current sensor comprising a magnetic circuit with an air gap |
08/29/1995 | US5446381 Optical voltage electric field sensor |
08/23/1995 | EP0668597A1 High frequency switching voltage rectifier |
08/23/1995 | EP0668508A1 Electric field sensor |
08/23/1995 | EP0668507A1 Electric field sensor |
08/23/1995 | EP0668506A1 Optical electric field sensor |
08/22/1995 | US5444365 Voltage measuring apparatus having an electro-optic member |
08/15/1995 | US5442337 Device for protection of digital multimeter from misinsertion of input plug |
08/15/1995 | US5442280 Device for measuring an electrical current in a conductor using a Rogowski coil |
08/15/1995 | CA2142206A1 Current controller using hall device for controlling current in a switchmode circuit |
08/09/1995 | CN1029494C D.C and A.C comparator |
08/08/1995 | US5438970 High tension cord connector with misfire detecting capacitor for internal combustion engine |
08/02/1995 | EP0665440A1 Device for indicating that a current passage occured in the conductors of lightning protection equipment |
08/01/1995 | US5438269 Sparking voltage detecting device having an embedded conductive member |
08/01/1995 | US5438257 Reduced magnetic flux current sensor |
08/01/1995 | US5438256 Apparatus and method for measurement from the ground for high voltage overhead lines |
07/27/1995 | WO1995020167A1 Current sensor including magnetic sensors |
07/26/1995 | EP0664460A1 Electric field sensor |
07/25/1995 | US5436557 Current sensor which is attachable to an external object by retention between the external object and an electrical conductor |
07/19/1995 | EP0663598A2 Means for determining current pulses of lightning conductors or similar |
07/19/1995 | EP0663597A2 Dual comparator trigger circuit with independent voltage level adjustment |
07/19/1995 | EP0663596A2 Electro-optic voltage probe with fibre optic plate |
07/18/1995 | US5434698 Potential sensor employing electrooptic crystal and potential measuring method |
07/18/1995 | US5434501 Polarization insensitive current and magnetic field optic sensor |
07/14/1995 | CA2123773A1 Dual comparator trigger circuit with independent voltage level adjustment |
07/12/1995 | EP0662219A1 Process for contactlessly determining electrical measurements. |
07/12/1995 | CN2203458Y Organic insulation tapping device |
07/11/1995 | US5432706 Measurement device |
07/11/1995 | US5432705 Administrative computer and testing apparatus |
07/11/1995 | US5432459 Leakage capacitance compensating current sensor for current supplied to medical device loads with unconnected reference conductor |
07/11/1995 | US5432439 Arrangement in a current detection circuit |
07/11/1995 | US5432438 Combined current and voltage transformer for a metal-enclosed gas-insulated high-voltage switching station |
07/06/1995 | DE4424368A1 Producing Rogowski coil for current measurement unit |
07/05/1995 | EP0661547A1 DC current sensor |
07/05/1995 | EP0661546A1 Magnetoresistive current sensor having high sensitivity |
07/05/1995 | EP0661524A2 Fibre-optic transmission sensor with a modulator |
07/05/1995 | CN2202925Y Value reporting digital multimeter |
06/22/1995 | WO1995016925A1 Peak magnetic field detector with non-volatile storage |
06/22/1995 | WO1995016382A1 Improved carpet cleaning machine with convertible-use feature |
06/21/1995 | EP0537144B1 Data encodement and reading method and apparatus |
06/21/1995 | CN2201754Y Secondary load linear voltage reducing compensator for voltage mutual inductor |
06/20/1995 | US5426416 Automotive current sensor |
06/20/1995 | US5426370 Spark plug voltage probe device for detecting a burning condition and reducing noise level in an internal combustion engine |
06/20/1995 | US5426360 Secondary electrical power line parameter monitoring apparatus and system |
06/14/1995 | EP0657740A2 Method and device for magneto-optical current measuring |
06/14/1995 | EP0657719A2 Multiple optic sensor system |
06/14/1995 | DE4421789A1 Electricity meter |
06/14/1995 | DE4342409A1 Solid optical current sensor |
06/14/1995 | CA2137891A1 Method for magnetooptic current measurement and magnetooptic current-measuring device |
06/13/1995 | US5424651 Fixture for burn-in testing of semiconductor wafers, and a semiconductor wafer |
06/10/1995 | CA2137333A1 Multiple optic sensor system |
06/08/1995 | DE4341425A1 Determining current representing measurement value flowing through load in vehicle |
06/06/1995 | US5422566 Apparatus and method for sensing DC current in a conductor |
05/31/1995 | CN2199539Y Current system converter without additional power |
05/30/1995 | US5420757 Method of producing a radio frequency transponder with a molded environmentally sealed package |
05/30/1995 | US5420686 Polarization interferometer optical voltage detector utilizing movement of interference fringe |
05/23/1995 | US5418450 Coupling circuit for a measuring instrument |
05/18/1995 | DE4433693A1 Chip resistor suitable for sensing small currents |
05/18/1995 | DE4337857A1 Evaluating the rotation of the polarisation plane of a measurement transducer |
05/17/1995 | CN2197672Y Separate current sensor |
05/16/1995 | US5416860 Method and apparatus for optically measuring electric current and/or magnetic field with temperature compensation |
05/16/1995 | US5416408 Current sensor employing a mutually inductive current sensing scheme with a magnetic field substantially uniform in angular direction |
05/16/1995 | US5416407 Electric current sensor employing hall effect generator |
05/11/1995 | WO1995012819A1 Bidirectional electric current sensor supplied by a unipolar source |