Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411) |
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12/11/2002 | EP1264191A2 Device and method for monitoring a capacitor bushing |
12/11/2002 | EP1264189A1 Arrangement for measuring the magnetic field strength |
12/11/2002 | EP1264188A1 High precision rogowski coil |
12/11/2002 | CN2525527Y Low power consumption constant current binary line multipurpose changer |
12/05/2002 | WO2002097455A1 Current transformer based high voltage measurement method and apparatus |
12/05/2002 | WO2002097454A1 Three-phase voltage sensor with active crosstalk cancellation |
12/05/2002 | WO2002080308A3 High-voltage insulated modular connection system with intensity and voltage acquisition |
12/05/2002 | WO2002052284A3 Electrical quantity sensor |
12/05/2002 | US20020180459 Three-phase voltage sensor with active crosstalk cancellation |
12/05/2002 | US20020180417 Current Sensor |
12/05/2002 | US20020180416 Faraday-effect current sensor with improved vibration response |
12/04/2002 | EP1261880A2 Faraday-effect current sensor with improved vibration response |
12/04/2002 | EP1261879A2 Current transformer for a compensating current sensor |
12/04/2002 | CN2524246Y Storage universal test meter |
12/03/2002 | US6489777 System for purging electrostatic voltmeter modulator assembly |
12/03/2002 | US6489693 Method and device for current monitoring in a current supply system |
11/28/2002 | WO2002095488A1 Method and apparatus for predicting dc offset in a liquid crystal display device |
11/28/2002 | WO2002095429A2 Electrical component measuring instrument |
11/27/2002 | EP1261091A1 Gas insulated device and failure rating method |
11/27/2002 | EP1260821A1 Detectiont transformer for a differential protection device and protection device using such a transformer |
11/27/2002 | EP1260820A1 Current detector for surge arrester diagnostic and overvoltage assessment in high voltage substations |
11/27/2002 | EP0993395B1 Current measurement module for an internal combustion engine starter device |
11/27/2002 | CN2522864Y Induction-type high-voltage charge displaying device for cable |
11/26/2002 | US6486952 Semiconductor test apparatus |
11/26/2002 | CA2241837C Modular core, self-powered powerline sensor |
11/21/2002 | WO2002093183A1 Method for detecting current transformer saturation |
11/21/2002 | WO2002054091A3 Capacity coupled rf voltage probe |
11/21/2002 | US20020171433 Voltage measuring apparatus for sheathed power cable |
11/21/2002 | US20020171413 Galvanometer mirror and optical switching device using the same |
11/20/2002 | EP1110094B1 Device and method for creating one or more magnetic field gradients through a straight conductor |
11/14/2002 | US20020167303 Non-contact voltage measurement method and device, and detection probe |
11/14/2002 | US20020167301 Hall effect current sensor system packaging |
11/14/2002 | DE10025900C2 Sonde für ein elektro-optisch abtastendes Oszilloskop A probe for electro-optically scanning oscilloscope |
11/13/2002 | EP1256010A1 Device for detecting a magnetic field, magnetic field measurer and current meter |
11/13/2002 | EP1256004A1 Voltage sensor |
11/13/2002 | CN1379860A Current sensor |
11/12/2002 | US6479981 Remote light indication fault indicator with a timed reset circuit and a manual reset circuit |
11/12/2002 | US6479979 Opto-electric device for measuring the root-mean-square value of an alternating current voltage |
11/12/2002 | US6479978 High-resolution measurement of phase shifts in high frequency phase modulators |
11/12/2002 | US6479976 Method and apparatus for accurate measurement of pulsed electric currents utilizing ordinary current transformers |
11/07/2002 | WO2002033424A3 Arrangement for potential-free measurement of high currents |
11/06/2002 | CN1378649A Sensor for detecting high-frequency oscillations of voltage and arrangement of sensor |
11/05/2002 | CA2150635C Current measurement circuit comprising a mutually coupled transformer and an integration circuit |
10/31/2002 | WO2001057543A9 High precision rogowski coil |
10/31/2002 | US20020158641 Method for measuring the resistance and the inductance of a line |
10/31/2002 | US20020158633 Method for operating an electronic overcurrent trip of a power circuit breaker |
10/30/2002 | EP1253430A1 Procedure and device for current monitoring in a power distribution network |
10/30/2002 | EP1252529A1 Partial discharge detection test link, partial discharge detection system and methods for detecting partial discharge on a power cable |
10/30/2002 | EP1161690B1 Low error, switchable measurement lead detect circuit |
10/30/2002 | CN1093640C Integral compensation fiibre-optical current sensor |
10/29/2002 | US6472878 Current measuring element with a hall sensor |
10/29/2002 | US6472862 Programmable voltage divider and method for testing the impedance of a programmable element |
10/24/2002 | DE10112835A1 Verfahren und Einrichtung zur Strommessung mittels eines faseroptischen In-Line-Sagnac-Interferometers und dafür geeigneter Phasenmodulator Method and device for measuring current by means of a fiber-optic in-line Sagnac interferometer and for suitable phase modulator |
10/23/2002 | EP1250606A1 Magnetic digital signal coupler monitor |
10/23/2002 | EP1250605A2 Compensation current sensor |
10/23/2002 | CN2518111Y Universal forcipated current meter |
10/23/2002 | CN1375700A 电压传感器 Voltage sensor |
10/22/2002 | US6470283 Non-contact self-powered electric power monitor |
10/22/2002 | US6469528 Electro-optic sampling probe and measuring method using the same |
10/17/2002 | WO2002082105A1 Current sensor |
10/17/2002 | US20020149356 Circuit for detecting a current passing through a consumer |
10/17/2002 | US20020149355 Closed-loop magnetoresistive current sensor system having active offset nulling |
10/16/2002 | EP1249706A2 Non-contact voltage measurement method and device, and related detection probe |
10/16/2002 | CN1375060A Automatic monitoring of high voltage signals |
10/15/2002 | US6466029 Power line testing device with signal generator and signal detector |
10/15/2002 | US6466005 High resolution current sensing apparatus |
10/15/2002 | US6466003 Microamp measurement for two-terminal digital meter |
10/10/2002 | WO2002080308A2 High-voltage insulated modular connection system with intensity and voltage acquisition |
10/10/2002 | US20020145416 Compact low cost current sensor and current transformer core having improved dynamic range |
10/10/2002 | US20020145414 Magneto-optic current sensor |
10/09/2002 | EP1247304A2 Shunt resistance device for monitoring battery state of charge |
10/09/2002 | EP0668507B1 Electric field sensor |
10/08/2002 | US6462531 Current detector having a hall-effect device |
10/03/2002 | US20020140536 Method and apparatus for detecting partial discharge in a voltage transformer |
10/03/2002 | US20020140416 Probe for electro-optic sampling oscilloscope |
10/02/2002 | EP1245961A2 Stabilized magneto-optic current measuring device |
10/02/2002 | EP1244920A1 Sensor for measuring a direct current and a measuring method |
10/02/2002 | DE10110292C1 Stromabhängiges resistives Bauelement Current-dependent resistive component |
10/02/2002 | DE10105982A1 Verfahren zur Auswertung eines Messwertes und zugehörige Schaltungsanordnung Method for evaluating a measured value and associated circuitry |
10/01/2002 | US6459968 Digital automobile tester |
10/01/2002 | US6459255 Current detector |
10/01/2002 | CA2181578C Magnetic sensors |
09/26/2002 | WO2002075327A2 Handheld tester for starting/charging systems |
09/26/2002 | WO2002075249A2 Method and device for current measurement by means of fibre-optic in-line sagnac interferometer and phase modulator suitable for the above |
09/26/2002 | US20020135354 Current sensor, current measuring method, and switch circuit |
09/26/2002 | US20020135353 Wireless alternating current phasing voltmeter |
09/26/2002 | US20020135352 Computer multimeter |
09/26/2002 | DE10110475A1 Übertrager für einen Stromsensor Transformer for a current sensor |
09/25/2002 | EP1242831A2 Magneto-resistive signal isolator |
09/24/2002 | US6456094 Capacitive voltage divider for measuring high voltage pulses with millisecond pulse duration |
09/24/2002 | US6456059 Non-homogeneous material magnetic flux sensor and method |
09/19/2002 | WO2001077698A3 Power line testing device with signal generator and signal detector |
09/19/2002 | US20020130668 Parallel arc fault diagnostic for aircraft wiring |
09/19/2002 | DE10108640A1 Contact-free current measurement device has an array of two similar magnetic field sensors for measuring equal currents flowing in opposite directions in parallel conductors, such that measurements are insensitive to position |
09/19/2002 | DE10107812A1 Vorrichtung, Strommesser und Kraftfahrzeug Device, ammeter and motor vehicle |
09/19/2002 | DE10107811A1 Vorrichtung, Strommesser und Kraftfahrzeug Device, ammeter and motor vehicle |
09/18/2002 | CN2511980Y Telescopic insulative voltage testing rope |
09/17/2002 | US6452966 Digital signal carrier detector |
09/17/2002 | US6452413 Signal sensor for rf integrated systems |
09/17/2002 | US6452399 Modulator base for electrostatic voltmeter modulator assembly |