| Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411) |
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| 11/02/1994 | CN2181697Y 多功能探针头 Multifunction probe head |
| 11/02/1994 | CN1026438C System and method for inspection of un-normal situation of high voltage power apparatus |
| 10/27/1994 | WO1994024574A1 Terminal for connecting live conductors |
| 10/27/1994 | WO1994024573A1 Optical method of measuring an alternating electrical current, including temperature compensation, and a device for carrying out the method |
| 10/27/1994 | WO1994024572A1 Optical method of measuring an alternating electrical current, including temperature compensation, and a device for carrying out the method |
| 10/27/1994 | DE4330345C1 Method and device for registering and evaluating the electromagnetic compatibility behaviour of an electrical instrument |
| 10/27/1994 | CA2160473A1 Optical method of measuring an alternating electrical current, including temperature compensation, and a device for carrying out the method |
| 10/26/1994 | EP0621461A1 Fibre optic current transducer |
| 10/26/1994 | CN1026358C Multimeter with at least three input connections |
| 10/25/1994 | US5359290 Method and apparatus using a pair of test circuits having LED indicators for testing engine sensors and ignition modules in vehicles |
| 10/18/1994 | CA2014681C Electrooptic apparatus for the measurement of ultrashort electrical signals |
| 10/13/1994 | WO1994023306A1 Optical measuring arrangement for measuring an electric current with twisted transmission lines |
| 10/13/1994 | WO1994023305A1 Electric current measuring device with a magnetic flux sensor, in particular for electric vehicles |
| 10/12/1994 | EP0619022A1 Fiber optical quartz voltage sensor |
| 10/12/1994 | EP0619021A1 Current sensor |
| 10/12/1994 | CN2179588Y Universal ammeter for directly measuring capacitance |
| 10/12/1994 | CN1093465A 电流检测器 Current detector |
| 10/11/1994 | US5355084 Optical magnetic-field sensor having spherical lenses for light collimation |
| 10/11/1994 | CA2038004C Optical d.c. voltage transformer |
| 10/08/1994 | CA2120451A1 Differential current sensing method and apparatus |
| 10/05/1994 | EP0618451A1 Current transducer particularly for an electronic electricity meter |
| 10/05/1994 | CN2178903Y Focusing field Hall sensor |
| 10/05/1994 | CN1026159C Optical fibre arrangment used for measurement of electric current intensity |
| 09/28/1994 | CN1092869A Electric signal testing recorder |
| 09/27/1994 | US5349930 High tension cord cover with misfire detecting capacitor for internal combustion engine |
| 09/21/1994 | EP0616346A1 Current detection unit and relay terminal array |
| 09/21/1994 | EP0615669A1 Process and circuit for measuring particle fluxes |
| 09/21/1994 | CN2177949Y 验电器 Electroscope |
| 09/20/1994 | US5349289 Clamp-on multimeter having a display for indicating the results of a plurality of measurements |
| 09/15/1994 | WO1994020860A1 Current transformer, in particular a current transformer for an electronic electricity meter |
| 09/15/1994 | DE4307366A1 Adapting device |
| 09/08/1994 | DE4323356C1 Electronic release unit for a power circuit breaker |
| 09/07/1994 | CN1025890C Improved automatic function selecting multimeter |
| 09/06/1994 | US5345169 Current measuring device |
| 09/06/1994 | CA1331883C Monitoring and fault protection of high voltage switch yards |
| 09/01/1994 | WO1994019920A1 Method and apparatus for precisely measuring accelerating voltages applied to x-ray sources |
| 08/31/1994 | EP0613018A1 Device for monitoring and measuring the insulation of an electrical network |
| 08/31/1994 | EP0613017A1 Device for optically measuring current intensity |
| 08/31/1994 | EP0613016A1 Voltage detection apparatus |
| 08/31/1994 | EP0613015A1 Waveform construction from two phase shifted electrical signals |
| 08/30/1994 | US5343404 Precision digital multimeter and waveform synthesizer for multi-signals with distorted waveforms embedded in noise |
| 08/30/1994 | US5343036 Optical measurement of electrical quantities using inverse piezoelectric effect with dual double-mode fiber |
| 08/30/1994 | CA1331785C Current detection device and core for detection of magnetic flux |
| 08/24/1994 | EP0612081A1 Resistive current measuring elements and connection- and measure modules |
| 08/24/1994 | EP0611974A1 Sensor head for a fibre optic current measuring apparatus |
| 08/23/1994 | US5341089 Voltage to decibel converter having partial table lookup |
| 08/23/1994 | US5341088 System for rating electric power transmission lines and equipment |
| 08/18/1994 | WO1994018700A1 Method of producing a radio frequency transponder with a molded environmentally sealed package |
| 08/18/1994 | CA2155208A1 Method of producing a radio frequency transponder with a molded environmentally sealed package |
| 08/18/1994 | CA2114914A1 Sensor head for a fiber-optic current measuring device |
| 08/16/1994 | US5339067 Integrated voltage divider and circuit employing an integrated voltage divider |
| 08/16/1994 | US5339026 Fiber-optic sensor with first and second bimode fibers |
| 08/09/1994 | US5336883 Optical fiber sensor for producing a variable transverse strain in a localized portion of the fiber |
| 08/04/1994 | WO1994017367A1 Universal measurement device |
| 08/02/1994 | CA2032365C Current sensor circuit |
| 07/28/1994 | DE4401593A1 Current detector with iron core |
| 07/27/1994 | EP0607595A2 Sensor chip |
| 07/27/1994 | EP0607464A1 Multifunction measuring acquisition device |
| 07/26/1994 | US5333169 Circuit arrangement for measuring the X-ray tube current |
| 07/26/1994 | CA2031690C Dispositif de mesure de tension |
| 07/21/1994 | WO1994015816A1 Junction box having integrally formed shunt |
| 07/20/1994 | CN2172476Y Multifunctional tester |
| 07/19/1994 | US5331272 Optical sensor for detecting an electric field via the Faraday effect |
| 07/14/1994 | CA2087214A1 Temperature compensated linearized isolated current monitor |
| 07/13/1994 | EP0606181A1 A transformer, in particular a measuring transformer e.g. for detecting faults in electric cables |
| 07/13/1994 | EP0605435A1 Sensor device for a high-voltage line |
| 07/13/1994 | CN2171868Y High-integrated electric parameter multipurpose surveying device |
| 07/09/1994 | CA2112935A1 Transformer, particularly measuring transformer, for detecting electrical cable defects for instance |
| 07/06/1994 | EP0604721A2 Magneto-optic probe |
| 07/05/1994 | CA1330578C System for detecting fault location in substation |
| 06/29/1994 | CN2170527Y Multifunctional low-voltage distributing line tester |
| 06/29/1994 | CN2170525Y Electric torch type luminous digital universal meter |
| 06/29/1994 | CN1025244C Multimeter with automatic function selecting |
| 06/28/1994 | US5325051 Electronic watthour meter |
| 06/23/1994 | DE4243130A1 Isolation transformer operating as current converter |
| 06/22/1994 | CN2169853Y Transmitter with overload protection |
| 06/22/1994 | CN2169852Y Detecting instrument |
| 06/21/1994 | US5323115 Electrostatic voltmeter producing a low voltage output |
| 06/21/1994 | CA1330360C Circuit testers |
| 06/15/1994 | EP0601291A1 High voltage transformer |
| 06/15/1994 | CN1087998A A circuit |
| 06/15/1994 | CN1025094C Double-slope integral analogue/digital converter |
| 06/15/1994 | CN1025075C Optical fibre apparatus for measuring current intensity |
| 06/14/1994 | US5321258 Optical waveguide for an optic sensor |
| 06/08/1994 | CN1024951C Optical fiber-containing insulators and producing process thereof |
| 06/07/1994 | US5319305 Automatic range selection-type analog tester |
| 06/01/1994 | EP0599181A2 Voltage sensor |
| 06/01/1994 | CN2167380Y Bias magnetic type electricity leakage detecting device |
| 06/01/1994 | CN2167375Y AC current sensing measuring device |
| 06/01/1994 | CN2167374Y Universal meter with no need of zero-setting function |
| 05/31/1994 | US5317251 Peak magnetic field detector with non-volatile storage |
| 05/26/1994 | WO1994011744A1 Precision ditigal multimeter and waveform synthesizer for multi-signals with distorted waveforms embedded in noise |
| 05/26/1994 | CA2149296A1 Precision digital multimeter and waveform synthesizer for multi-signals with distorted waveforms embedded in noise |
| 05/25/1994 | EP0598356A2 Polarization state detector and current sensor using it |
| 05/25/1994 | CN2166456Y Sound value-announcing multitester |
| 05/25/1994 | CN1087176A Method and apparatus for measuring high dc current |
| 05/18/1994 | EP0597717A2 Apparatus for measuring a resistance of a high tension resistance electrical cable |
| 05/18/1994 | EP0597404A2 Method and device for determining lead currents of a polyphase system |
| 05/18/1994 | EP0464076B1 Apparatus and method for measuring electric current in conditions of high interference |
| 05/18/1994 | CN2165448Y Portable optical current forked meter |