| Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411) |
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| 06/05/1997 | WO1997020222A2 Process and device for measuring a quantity, in particular an electric current, with a high measurement resolution |
| 06/05/1997 | DE19544778A1 Verfahren und Anordnung zum Messen einer Meßgröße, insbesondere eines elektrischen Stromes, mit hoher Meßauflösung Method and apparatus for measuring a measured variable, especially an electric current, high measurement resolution |
| 06/05/1997 | CA2238971A1 Process and device for measuring a quantity, in particular an electric current, with a high measurement resolution |
| 06/04/1997 | EP0776477A1 Method and device for the measurement of electric currents in at least two measurement ranges |
| 06/04/1997 | EP0721589B1 Method and device for measuring an alternating electrical quantity to include temperature compensation |
| 06/04/1997 | EP0706662B1 Optical method of measuring an alternating electrical current, including temperature compensation, and a device for carrying out the method |
| 06/03/1997 | US5635829 Optical sensor |
| 06/03/1997 | US5634828 Capacitive pickup clip |
| 05/29/1997 | WO1997019361A1 Concatenated magneto-optic field sensors |
| 05/28/1997 | EP0775914A2 Optical voltage sensor, group of optical parts and method of manufacturing same |
| 05/28/1997 | EP0706661B1 Optical method of measuring an alternating electrical current, including temperature compensation, and a device for carrying out the method |
| 05/28/1997 | EP0692098B1 Electric current measuring device with a magnetic flux sensor, in particular for electric vehicles |
| 05/28/1997 | DE19605717C1 Fibre optic measuring unit with light source transmitting linear polarised light |
| 05/28/1997 | DE19543363A1 Measurement conversion arrangement for measuring current or voltage in middle or high voltage systems |
| 05/28/1997 | CN1150842A Device for connecting voltage display apparatus to sensor |
| 05/22/1997 | WO1997018477A2 Current measurement in turbogenerators |
| 05/21/1997 | EP0774669A1 Optical fiber magnetic-field sensor |
| 05/21/1997 | CN1150251A Method and apparatus for testing internal circuit |
| 05/21/1997 | CN1150248A On-line measuring method and apparatus for resistance, capacity and inductance |
| 05/20/1997 | US5631794 Differential shunt-type protection circuit |
| 05/20/1997 | US5631555 Voltage measurement system |
| 05/15/1997 | WO1997017616A1 Current sensor assemblies |
| 05/15/1997 | DE19542153A1 Converter for converting effective value of AC in to corresponding measurement signal |
| 05/14/1997 | EP0773446A1 Voltage sensor with galvanic isolation |
| 05/14/1997 | CN1149723A Current sensor and electric device mounted with said sensor |
| 05/07/1997 | EP0772051A1 Non conventional measuring transformer |
| 05/07/1997 | EP0771421A1 Voltage transformer for metal-clad electric switchgear |
| 05/07/1997 | EP0628169B1 Process and sensor for measuring electric voltages and/or electric field intensities |
| 04/30/1997 | DE19601727C1 Magneto-optical current converter including Faraday sensor |
| 04/29/1997 | US5625296 For detecting a voltage of a sample |
| 04/29/1997 | US5625286 Digital multimeter having an improved design against mechanical shock |
| 04/29/1997 | US5625284 Electric field sensor having sensor head with unbalanced electric field shield to shield branched optical waveguides against an applied electric field |
| 04/16/1997 | EP0767916A1 High-impedance electro-optic transducer |
| 04/16/1997 | EP0669003A4 Precision ditigal multimeter and waveform synthesizer for multi-signals with distorted waveforms embedded in noise. |
| 04/15/1997 | US5621377 Sensor assembly for measuring current as a function of magnetic field gradient |
| 04/15/1997 | US5621319 Chopped hall sensor with synchronously chopped sample-and-hold circuit |
| 04/15/1997 | US5621311 Digital multimeter having an improved enclosure |
| 04/10/1997 | WO1997013156A1 Ac current sensor |
| 04/10/1997 | WO1997013155A1 Verdet constant temperature-compensated current sensor |
| 04/10/1997 | DE19537354A1 Digitally controlled power circuit current strength determn. |
| 04/10/1997 | DE19537155A1 Voltage divider for high voltages |
| 04/09/1997 | CN2251726Y Superminiature high-current dc diverter |
| 04/08/1997 | US5619129 Multimeter having an erroneous input prevention mechanism |
| 04/02/1997 | EP0766373A1 High voltage generator |
| 04/02/1997 | EP0766091A1 Offset adjustement device for direct current measuring apparatus |
| 04/02/1997 | CN2251143Y Portable universal field checker |
| 04/01/1997 | US5617020 Microelectromechanical-based power meter |
| 04/01/1997 | US5617019 Inductive measuring device for measuring alternating current components superposed to a high direct current |
| 04/01/1997 | US5617018 Device for measuring a wide range of voltages and for determining continuity |
| 03/27/1997 | WO1997011475A1 Circuit breaker |
| 03/25/1997 | US5615075 AC/DC current sensor for a circuit breaker |
| 03/23/1997 | CA2184766A1 Current sensor |
| 03/20/1997 | WO1997010515A1 A device for sensing of electric discharges in a test object |
| 03/18/1997 | US5612616 Device for measuring a wide range of voltages and for determining continuity |
| 03/18/1997 | CA2037790C Dc current monitor |
| 03/13/1997 | WO1997009624A1 Voltmeter suitable for medium/high-voltage installations, with a surface wave device |
| 03/12/1997 | EP0762589A1 Device for recording strokes of lightning |
| 03/12/1997 | EP0734217A4 Improved carpet cleaning machine with convertible-use feature |
| 03/12/1997 | CN1145117A DC and AC current sensor having a minor-loop orperated current transformer |
| 03/11/1997 | US5610512 Clamp-on electrical measuring device |
| 03/06/1997 | DE19633542A1 Leistungsmodul Power module |
| 03/06/1997 | DE19532197A1 Measurement transformer for electric motor or incandescent lamp supply with over-current detection |
| 03/05/1997 | CN2248877Y Electric current safety and error compensation device |
| 02/27/1997 | WO1997007411A1 Measurement system for electric disturbances in a high-voltage switchboard plant |
| 02/26/1997 | EP0759672A1 Minimally invasive current sensing circuit |
| 02/26/1997 | EP0759557A2 Electro-optic probing apparatus using trigger circuit |
| 02/26/1997 | CN2248380Y Current mutual inductor with function of on-line detection |
| 02/25/1997 | US5606481 Overvoltage protection for battery powered equipment |
| 02/25/1997 | US5606249 Electrical apparatus with wide dynamic range for monitoring and protecting electric power systems |
| 02/20/1997 | DE19531827A1 Meßsystem für elektrische Störungen in einer Hochspannungsschaltanlage A measuring system for electrical faults in a high-voltage switchgear |
| 02/19/1997 | EP0758749A1 Current sensor and electrical apparatus using same |
| 02/19/1997 | CN1143355A Holder for annealing fiber optic coils |
| 02/18/1997 | CA2092988C Current sensing system |
| 02/15/1997 | CA2183265A1 Current detector and electrical apparatus having said detector |
| 02/12/1997 | EP0758090A2 An electromagnetic wave-to-optical signal converting and modulating device and a communication system using the same |
| 02/12/1997 | EP0757870A1 Self-powered powerline sensor |
| 02/12/1997 | EP0757796A1 Device for connecting a voltage display apparatus to a sensor |
| 02/11/1997 | US5602750 Administrative computer and testing apparatus |
| 02/05/1997 | EP0756710A1 Device for displaying the voltage of a conductor of a high-voltage power supply system |
| 02/05/1997 | CN2246807Y Three-phase voltage and current monitor selector |
| 02/05/1997 | CN1142265A Farday-effect sensing coil with stable birefringence |
| 01/28/1997 | CA2083125C Optical device for measuring ground current of a metal casing |
| 01/23/1997 | WO1997002494A1 Shunt assembly for current measurement |
| 01/23/1997 | CA2226107A1 Shunt assembly for current measurement |
| 01/21/1997 | US5596309 Reduced inductance coaxial resistor |
| 01/14/1997 | US5594332 Alternating current detector |
| 01/14/1997 | US5594240 Strain-optic voltage monitor wherein strain causes a change in the optical absorption of a crystalline material |
| 01/09/1997 | WO1997001100A1 High voltage measuring device |
| 01/09/1997 | CA2221457A1 High voltage measuring device |
| 01/08/1997 | EP0441898B1 Optical sensing apparatus and method |
| 01/08/1997 | CN2244731Y Car for measuring safety performance of electrical appliance products |
| 01/02/1997 | EP0751395A2 Technique and apparatus for measuring a direct current flowing through a conductor at high voltage |
| 01/01/1997 | CN1139213A Split-path linear isolation circuit apparatus and method |
| 12/27/1996 | EP0749584A1 Optical sensor for measuring voltage independently of the path of transmission |
| 12/27/1996 | CA2179463A1 Technique and apparatus for measuring a direct current flowing through a conductor at high voltage |
| 12/24/1996 | US5587791 Optical interferometric current sensor and method using a single mode birefringent waveguide and a pseudo-depolarizer for measuring electrical current |
| 12/24/1996 | US5587695 Measuring transformer for solid-state electricity meters |
| 12/24/1996 | US5587652 Alternating current sensor based on parallel-plate geometry and having a shunt for self-powering |
| 12/24/1996 | US5587651 Alternating current sensor based on parallel-plate geometry and having a conductor for providing separate self-powering |
| 12/19/1996 | WO1996041319A1 Self-excited microelectromechanical device |