Patents
Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups ,  or (13,411)
02/2010
02/17/2010CN201408642Y Optical fiber current transformer
02/17/2010CN201408640Y Creepage mutual inductor of detector
02/17/2010CN201408639Y Indoor semi-closed single-phase potential transformer
02/17/2010CN201408638Y Built-in voltage transformer
02/17/2010CN201408219Y Measurement device equipped with multi-band low-pass filter circuit
02/17/2010CN201408208Y Reducing pen point of avometer
02/17/2010CN101650380A Intelligent measuring device automatically selecting measuring functions
02/17/2010CN101650379A Combined type sensor
02/16/2010US7663459 Short-circuit indicator for electrical lines for power distribution
02/16/2010US7663358 Current sensor and molding method thereof
02/11/2010DE202009012471U1 Messeinrichtung zur kontinuierlichen Erfassung des Übergangswiderstandes von einem Schleifkontakt eines Stromabnehmers elektrisch betriebener Fahrzeuge Measuring device for continuous measurement of the contact resistance of a sliding contact of a pantograph electric vehicles
02/11/2010DE102008036582A1 Kompensationsstromumwandler Kompensationsstromumwandler
02/11/2010DE102008035551A1 Method for current measurement, involves determining magnetic force as result of magnetic field on metal body, where magnetic field is generated by current, which is to be measured
02/10/2010EP2151692A2 Compensation electricity converter
02/10/2010CN201403121Y Cell phone with universal meter
02/10/2010CN201402936Y Removed intellectual voltage sensor hand buggy
02/10/2010CN201402737Y Current transformer for high-precision measurement
02/10/2010CN201402283Y Multimeter capable of switching between a built-in power supply and an external power supply
02/10/2010CN201402282Y Signal source for impedance meter
02/10/2010CN101646950A Current monitoring device for high voltage electric power lines
02/10/2010CN100588973C Optical fiber current sensor sensing head and its manufacture method
02/09/2010US7659710 Electrical measuring instrument having a current clamp measures the current while detached from and attached to the housing
02/09/2010US7659709 Electric current sensor having housing with rails to insert support board
02/09/2010CA2366531C Apparatus and method for electrical measurements on conductors
02/04/2010WO2010012618A1 Method and device for numerically representing a voltage
02/04/2010WO2010012301A1 Generator circuit breaker with fiber-optic current sensor
02/04/2010US20100030497 Integrated circuit characterisation system and method
02/04/2010DE202009015109U1 Multimeter mit einem Filtermessmodus Multimeter with a filter Metering Mode
02/04/2010DE102009023607A1 Elektrisches Verteilergehäuse mit Stromsensor Electrical junction box with current sensor
02/04/2010DE102008034577A1 Current measuring arrangement, has electrically conductive flat diamagnetic or paramagnetic shielding element lying with respect to sensor arrangement and comprising surface partially covers measuring circuit of sensor arrangement
02/04/2010DE102008033957A1 High current sensor for use in converter for e.g. battery monitoring, for hybrid drive in motor vehicle, has magnetic field sensors whose plane is azimuthally rotated at opposite common plane between conductor and p-type conductor
02/03/2010EP2149794A2 Method for measuring the current strength of an alternating current
02/03/2010CN201397739Y Capacitive electromagnetic-type voltage mutual inductor
02/03/2010CN201397346Y Multi-function pen-shaped universal meter
02/02/2010US7656149 Current transformer and electric energy meter
02/02/2010US7655900 Intensity modulation type optical sensor and optical current/voltage sensor
01/2010
01/28/2010WO2010010090A2 3-phase faraday optical current sensor assembly
01/28/2010WO2010009761A1 Magnetoresistive sensor arrangement for current measurement
01/28/2010US20100022045 Sensor platform using a non-horizontally oriented nanotube element
01/28/2010US20100020457 Protective Digital Relay Device
01/28/2010CA2730747A1 3-phase faraday optical current sensor assembly
01/27/2010EP2148210A1 3-phase Faraday optical current sensor assembly
01/27/2010CN201392731Y Photoelectric DC current transformer
01/27/2010CN201392728Y Current transformer used for super-current electric power plant
01/27/2010CN201392362Y Electric current measurement device
01/27/2010CN201392361Y AC/DC voltmeter and ammeter based on single chip microcomputer and optical coupler and sampling circuit
01/27/2010CN201392358Y Passive power distribution isolator and 0-20mA signal passive isolator
01/27/2010CN201392357Y Electronic element package structure of electric current sensor
01/27/2010CN100585759C Wide band high voltage intelligent resistance type voltage current combined sensor
01/26/2010CA2165212C An electrical metering system having an electrical meter and an external current sensor
01/21/2010WO2010008029A1 Fiber optic current sensor, current-measuring method and fault section-detection device
01/21/2010WO2010007017A1 Presettable transducer for electrical quantities
01/21/2010WO2009001185A8 Rogowski current sensor
01/21/2010US20100013460 Rogowski Sensor and Method for Measuring a Current
01/21/2010DE102009001659A1 System zur Berechnung von Leistungskenndaten in Echtzeit, das Kenndaten an eine Benutzeroberfläche sendet Sends system for calculating power characteristic data in real time, the identification data to a user interface
01/21/2010DE102008033428A1 Direct current voltage source's voltage measuring method for intermediate circuit in e.g. hybrid vehicle, involves indirectly measuring voltage that is induced in one of inductors of one of electric circuits by measuring device
01/21/2010CA2729982A1 Adjustable transducer for electrical quantities
01/20/2010EP2145194A2 Adaptive filters for fiber optic sensors
01/20/2010CN201387808Y Combined transformer for prepayment metering box
01/20/2010CN201387807Y Anti-electromagnetic interference intelligent electrical quantity transducer
01/20/2010CN201387444Y Pointer type digital multimeter
01/20/2010CN201387443Y Modular bus connection self-recognition sensor
01/20/2010CN201387442Y Digital double-clamp phase volometer
01/20/2010CN201387438Y Measuring device with electromagnetic shielding device
01/20/2010CN100583322C Integral type current sensing and measuring transformer and current sensing and measuring circuit using same
01/20/2010CN100582788C Clamp meter with dual display
01/19/2010US7650246 Process and apparatus for estimating circuit delay
01/19/2010US7649348 Auxiliary element for fixing a current sensor to an electrical conductor
01/14/2010WO2010004682A1 Current sensor
01/14/2010US20100007336 System for Accurately Detecting Electricity Theft
01/14/2010DE102006008257B4 Magnetoresistives Mehrschichtensystem vom Spin Valve-Typ mit einer magnetisch weicheren Elektrode aus mehreren Schichten und dessen Verwendung The magnetoresistive multilayer system of spin valve type with a magnetically softer electrode composed of several layers and its use
01/13/2010EP2144070A1 Sensor for high voltage environment
01/13/2010CN201383434Y Inductive power supply power bus device
01/13/2010CN201382969Y Capacitor for reducing line induction voltage during test of insulation resistance for transmission line
01/13/2010CN201382968Y Positioning bench for detecting magnetic field uniformity of three-dimensional space
01/13/2010CN201382961Y Slide detachable-type probe of universal meter
01/13/2010CN201382959Y Auxiliary device of multimeter
01/13/2010CN101627311A High bandwidth open-loop current sensor
01/13/2010CN101625377A High-accuracy open type Rogowski coil
01/13/2010CN100580459C Current measurement apparatus
01/13/2010CN100580458C Voltage check device for gas insulation apparatus
01/12/2010US7646192 Compensation of simple fibre optic Faraday effect sensors
01/07/2010US20100001716 Direct Current Measuring Device With Wide Measuring Range, Electro-Technical Unit Comprising One Such Measuring Device and Switchgear Unit Having One Such Electro-Technical Unit
01/07/2010US20100001715 Folding current sensor
01/07/2010DE102008030334A1 Method for contactless measurement of high current in conductor in converter utilized for e.g. hybrid drive in motor vehicle, involves measuring sensors, directly supplying measuring signals and determining current flowing through conductor
01/06/2010CN201378507Y Dry type current transformer special for 27.5kV railway electrical engineering
01/06/2010CN201378506Y Dry type voltage transformer special for 27.5kV railway electrical engineering
01/06/2010CN201378187Y Auxiliary device of connector insulating resistance detecting instrument
01/06/2010CN101620244A Closed-loop detection circuit of interferential full optical-fiber current mutual inductor
01/06/2010CN100578233C Electronic veltage transformer of capacitor or resistance series hollow coil
01/05/2010CA2398082C Voltage sensor
12/2009
12/30/2009EP2138853A1 Optical vt device
12/30/2009CN201373894Y Test set for testing surge, time sequence and ripple
12/30/2009CN201373893Y Solar cell powered multimeter
12/30/2009CN100575959C Control processing method and device for optical fiber current transformer
12/30/2009CN100575958C Fibre-optic sensor head and its manufacture method ,and sensor comprising the sensor head
12/29/2009US7640119 System for dynamically adjusting operation of a surgical handpiece
12/29/2009US7640118 Measuring method for deciding direction to a flickering source
12/29/2009US7638999 Protective relay device, system and methods for Rogowski coil sensors
12/29/2009CA2366467C Apparatus and method for fault detection on conductors
1 ... 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 ... 135