Patents
Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups ,  or (13,411)
03/2003
03/11/2003US6531862 High performance current sensor using low cost current transformer arrays
03/06/2003WO2003019211A1 Tap switch for frequency response and partial discharge measurement
03/06/2003US20030042884 Opto-electric device for measuring the root-mean-square value of an alternating current voltage
03/06/2003CA2458568A1 Tap switch for frequency response and partial discharge measurement
03/05/2003EP1015896B1 Current measuring element with a hall sensor
03/05/2003CN2539185Y Wireless high-voltage elecroscope
03/05/2003CN1400469A Anti-jumming measuring circuit
03/05/2003CN1102738C Dc and ac three-purpose current comparator
03/04/2003US6529013 Three-phase voltage sensor with active crosstalk cancellation
03/04/2003US6528988 Technique for programming a programmable device while coupled to another component in a circuit
03/04/2003US6528960 Cost effective measurement of high currents
02/2003
02/27/2003WO2003016925A1 Digital multimeter module for portable electronic device
02/27/2003WO2003016924A2 Oscilloscope module for portable electronic device
02/27/2003WO2003016816A2 Current sensor
02/27/2003US20030038620 Electrical resistance for the measurement of preferably high frequency alternating currents
02/27/2003US20030038016 Tap switch for frequency response and partial discharge measurement
02/26/2003CN1399286A Capacitor with high heat stability for shielded wire
02/25/2003US6525533 Current detection switch and apparatus therewith
02/25/2003US6525524 High linearity, low offset interface for hall effect devices
02/20/2003WO2002075249A3 Method and device for current measurement by means of fibre-optic in-line sagnac interferometer and phase modulator suitable for the above
02/20/2003WO2002054091A8 Capacity coupled rf voltage probe
02/20/2003US20030034769 DMM module for portable electronic device
02/20/2003US20030034768 Method and device for compensating for interfering variables in an optical sensor
02/20/2003US20030034767 Oscilloscope module for portable electronic device
02/19/2003EP1284425A2 Procedure and device for interference compensation of an optical sensor
02/19/2003CN1397963A Current measuring device and method using current mutual inductor with high transforming ratio
02/18/2003US6522517 Method and apparatus for controlling the magnetization of current transformers and other magnetic bodies
02/18/2003US6522256 Hybrid current and voltage sensing system
02/13/2003WO2003012459A1 Magnetic field sensor using microelectromechanical system
02/13/2003WO2002023237A3 Decreasing the effects of linear birefringence in a fiber-optic sensor by use of berry's topological phase
02/13/2003US20030030962 Capacitor with high thermal stability for shielded electrical lines
02/13/2003US20030030432 Arrangement for measuring the magnetic field strength
02/13/2003US20030030428 Measurement of quantities of electric line
02/12/2003EP1129359B1 Apparatus and method for remote current sensing
02/12/2003CN1396459A Three-phase moulded measuring tool
02/11/2003US6518814 High-voltage capacitor voltage divider circuit having a high-voltage silicon-on-insulation (SOI) capacitor
02/11/2003US6518782 Active power monitoring using externally located current sensors
02/11/2003US6518740 Alternating current meter with photoelectric digital counter structure
02/11/2003CA2306665C Float current measuring probe and method
02/06/2003US20030028338 Sampler and method of measuring a waveform of a current with jitters reduced
02/06/2003US20030025489 Electro-optic high voltage sensor
02/05/2003EP1281975A2 Sensing device for indirectly measuring currents
02/05/2003EP1281974A2 Hall-effect current detector
02/05/2003CN2534586Y Magneto-optical current sensor
02/05/2003CN1101077C Split-path linear isolation circuit apparatus and method
02/04/2003US6515484 Electrical test instrument having an improved operator interface
02/04/2003US6515468 Current sensor and electric circuit using the same
02/04/2003US6515467 Method and system for optically detecting an electric current by means of light signals having different wavelengths
01/2003
01/30/2003US20030020472 Magnetic field sensor using microelectromechanical system
01/30/2003DE10034706C2 Elektrooptik-Meßfühler Electro-optic probe
01/29/2003EP1280169A1 Measuring capacitor with high thermal stability for gas insulated high-voltage
01/29/2003EP1208386B1 Sensor for current measurement and electricity meter
01/28/2003US6512359 Current detector using magnetic-electric conversion element and electric connection box using the same
01/28/2003US6512357 Polarimetric sensor for the optical detection of a magnetic field and polarimetric sensor for the optical detection of an electric current
01/23/2003US20030017753 Battery clamp with integrated current sensor
01/22/2003EP1277060A1 Current measurement device
01/22/2003EP0960342B1 Current sensor with self-oscillating generator circuit
01/22/2003CN2532491Y High-voltage on-line tester
01/21/2003US6508138 Method of, and device for, checking cigarettes
01/15/2003EP1274991A1 Current measuring apparatus for battery
01/15/2003EP1175623A4 Insulator support current sensor
01/15/2003CN2531398Y Electronic element parameter measuring fixing equipment
01/09/2003WO2002046777A3 Current sensors
01/09/2003US20030006839 Extended range power detector and amplifier and method
01/09/2003US20030006753 High linearity, low offset interface for hall effect devices
01/09/2003US20030006752 Hall-effect current detector
01/09/2003US20030006751 Hall-effect current detector
01/08/2003EP1273921A1 Hall-effect current detector
01/08/2003EP1092158B1 Current detector and current measurement apparatus including such detector
01/07/2003US6504382 Electrical system with a stress shield system for partial discharge on-line monitoring of the state of high-voltage insulation
01/07/2003US6504356 Microelectro-mechanical high resolution current sensing apparatus
01/07/2003US6504355 Device for measuring an electric current by Faraday effect
01/07/2003CA2120805C Faulted circuit indicator
01/02/2003US20030001559 Hall-effect current detector
01/02/2003EP1271159A2 Hall-effect current detector
01/01/2003CN2529261Y 10KV voltage sensor
12/2002
12/31/2002US6501285 RF current sensor
12/31/2002US6501241 Current detector used in system of controlling motor for driving vehicle
12/27/2002WO2002023301A9 Wide ratio autotransformer-type current ranging
12/26/2002US20020196031 Parallel insulation fault detection system
12/25/2002CN1387213A Test mutual inductor for protecting device against electric ground leakage and protecting device against electric ground leakage
12/24/2002CA2141128C Method and apparatus for sensing an input current with a bridge circuit
12/19/2002WO2002101397A1 Measuring devices
12/19/2002WO2002075327A3 Handheld tester for starting/charging systems
12/19/2002US20020191360 Current detector for surge arrester diagnostic and overvoltage assessment in high voltage substations
12/19/2002US20020190831 Sensor for measuring a direct current and a measuring method
12/19/2002US20020190705 Current transformer based high voltage measurement method
12/19/2002US20020190703 Hall-effect current detector
12/18/2002EP1267173A2 Hall-effect current detector
12/18/2002EP1266231A2 Instrument transformer
12/18/2002EP1097385B1 Capacitative voltage divider for measuring high voltage pulses with a millisecond pulse duration
12/18/2002CN2526854Y 电压传感器 Voltage sensor
12/18/2002CN2526853Y Main body of digital active power meter
12/18/2002CN1386199A Sagnac interferometer type current sensor
12/17/2002US6495999 Method and device for measuring a magnetic field with the aid of the faraday effect
12/17/2002CA2271537C Fault indicator having remote light indication of fault detection
12/12/2002WO2002056032A3 Device, ammeter and motor vehicle
12/12/2002US20020186189 Method and apparatus for predicting DC offset potential in a liquid crystal display (LCD) device
12/12/2002DE10111816A1 Elektronischer Spannungswandler Electronic voltage converter
12/11/2002EP1265075A2 Floating analog signal transmission having a calibration function
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