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