Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
10/2012
10/17/2012CN102735911A Multifunctional electronic pen
10/17/2012CN102735910A Maximum peak voltage detection circuit
10/17/2012CN102735909A Voltage detection circuit of light-emitting diode (LED) string light and detection method thereof
10/17/2012CN102735908A Network voltage sampling circuit
10/17/2012CN102735907A Dual-Hall current sensor detection system and method used for electric vehicle
10/17/2012CN102735906A Inductive current detecting circuit and LED (light emitting diode) driving circuit using inductive current detecting circuit
10/17/2012CN102735905A Intrinsically safe isolation electric leakage detection device and excavation equipment
10/17/2012CN102735904A Live tester for zinc oxide arresters
10/17/2012CN102735903A Method for measuring resistive current of three-phase zinc oxide arrester
10/17/2012CN102735902A High-temperature superconducting wire tensile force testing device and testing method thereof
10/17/2012CN102735901A Current sensors, systems and methods
10/17/2012CN102735900A Passive alternating current sensor
10/17/2012CN102735899A Battery voltage detector
10/17/2012CN102735898A Battery voltage detector
10/17/2012CN102735889A Probe circuit
10/17/2012CN102735289A Wireless digital monitoring sensor for electrical equipment
10/17/2012CN102733853A Intelligent sensor for collecting stress
10/17/2012CN101937014B Adaptive current detection circuit applied to wide-conversion ratio boost converter
10/17/2012CN101916547B Driver for driving a plurality of light-emitting components and display equipment
10/17/2012CN101769953B Phase current detection method of motor based on direct-current bus current
10/16/2012US8290728 Method and apparatus for integrated circuit temperature control
10/16/2012US8289012 Signal transmission/reception device
10/16/2012CA2337424C Luminous display device for electrical motors for equipment powered by three-phase sources
10/11/2012WO2012137980A1 Shunt resistance type current sensor
10/11/2012WO2012137670A1 Load current detection circuit
10/11/2012US20120256615 Measurement and apparatus for electrical measurement of electrical drive parameters for a mems based display
10/11/2012DE102011006979A1 Electrical power supply network protecting method, involves computing distance between midpoint of fault current and point on origin of impedance plane, and adjusting current threshold value in accordance with formula
10/11/2012CA2773562A1 Device and assembly for measuring an electric current
10/10/2012EP2508900A1 Surge current detection device
10/10/2012EP2507087A1 Abnormality detecting system for battery assembly
10/10/2012CN202488111U Overcurrent detection and protection device for inverter
10/10/2012CN202486296U Special battery voltage tester for substation
10/10/2012CN202486272U Testing system for partial discharge, withstand voltage and leakage current
10/10/2012CN202486236U Detection circuit for monitoring state of current transformer
10/10/2012CN202486229U Lightning arrester on-line monitoring system
10/10/2012CN202486208U 21-harmonic table implemented based on metering chip ATT7022
10/10/2012CN202486207U Three phrase network voltage sampling module of a photovoltaic inverter and wind energy convertor system
10/10/2012CN202486206U Electric transmission line multi-channel data collecting system based on electronic mutual inductor
10/10/2012CN202486205U Voltage zero-crossing detection circuit and device
10/10/2012CN202486204U Converter detector
10/10/2012CN202486203U Test pencil with lighting device
10/10/2012CN202486202U Display for zero wire and live wire of circuit
10/10/2012CN202486201U Electroscope
10/10/2012CN202486200U Residual voltage detection circuit
10/10/2012CN202486199U Data acquisition unit of electronic type mutual inductor
10/10/2012CN202486198U Voltmeter on high voltage end
10/10/2012CN202486197U Experiment device for oxygen utilization signal box
10/10/2012CN202486196U Comparing unit for electrical device before and after power saving
10/10/2012CN202486195U Coupler
10/10/2012CN202486194U Current sensor based on Rogowski coil
10/10/2012CN202486193U Direct current pincerlike meter used for measuring direct current
10/10/2012CN202486188U Laser pointer ammeter structure
10/10/2012CN202486158U High-voltage electroscope
10/10/2012CN102725799A Data processing system having brown-out detection circuit
10/10/2012CN102725644A Smoothed-current calculating device, smoothed-current calculating method, and battery monitoring module
10/10/2012CN102725643A Voltage detection apparatus
10/10/2012CN102723704A Magnetic switch type short-circuit current fault detection method and device for same
10/10/2012CN102721900A Method for detecting operation fault direction of distribution network
10/10/2012CN102721896A Stoppage arc detection method
10/10/2012CN102721895A Electronic fence tester
10/10/2012CN102721857A Measurement system and measurement method for rapidly measuring thermoelectrical potential
10/10/2012CN102721856A Overvoltage measuring sensor for overhead transmission line based on coupling electric field
10/10/2012CN102721855A Power network over-voltage sensor integrating leakage current and pulse current measuring functions
10/10/2012CN102721854A Method and system for detecting overvoltage signal of power grid
10/10/2012CN102721853A Optical fiber Bragg grating voltage sensor based on Rogowski coil
10/10/2012CN102721852A Method and device for measuring working current of electronic device
10/10/2012CN102721851A Method for combined detection of current and temperature of electrified through-current part of electric equipment
10/10/2012CN102721850A Measuring method for fundamental wave component of resistive current of zinc oxide arrester
10/10/2012CN102721849A Broadband corona current measuring system used for direct current test line segment
10/10/2012CN102721848A Method and apparatus for detecting input current of bridgeless PFC circuit
10/10/2012CN102721847A Hybrid grating on-line temperature measurement type all-fiber current transformer and current detection method thereof
10/10/2012CN102719927A Preparation method of polyvinylidene fluoride (PVDF)/carbon nanotube composite nanofibers
10/10/2012CN102148293B Laser scribing and repairing method for amorphous silicon solar cell
10/10/2012CN101957410B Personal laboratory system integrating device
10/10/2012CN101900757B Method and device for measuring direct current voltage
10/10/2012CN101895098B Protecting-two-of-three redundancy monitoring circuit
10/10/2012CN101793916B All-fiber current monitoring device based on Faraday effect
10/10/2012CN101750522B Wide bandwidth attenuator input circuit for a measurement probe
10/10/2012CN101710147B Method for estimating the output current of an automotive generator
10/10/2012CN101614765B Electric fence exciter circuit and method for controlling stored energy capacity to charge
10/10/2012CN101545935B Method for realizing analysis of electrical performance indexes in embedded type system
10/09/2012US8286010 Voltage sensor for high-current junction
10/09/2012US8285502 Digital compensator for power supply applications
10/09/2012US8284302 Electronic device with low battery warning
10/09/2012US8284007 Magnetic package for a communication system
10/09/2012US8283911 Long range phasing voltmeter
10/04/2012WO2012135148A1 Method and circuitry to adaptively charge a battery/cell using the state of health thereof
10/04/2012WO2012134577A1 Method and apparatus for measuring charging current
10/04/2012WO2012133974A1 Sensor and device for measuring nitrosothiol concentration
10/04/2012WO2012133756A1 Power consumption management system
10/04/2012WO2012132220A1 Voltage monitoring module and voltage monitoring system using same
10/04/2012WO2012130995A1 Current sensor
10/04/2012WO2012130990A1 Device for measuring a supply voltage in electric vehicles
10/04/2012WO2012130572A1 Apparatus for current measurement
10/04/2012WO2012103485A3 Signal identification methods and systems
10/04/2012WO2012091432A3 Method and device for calculating state of health in secondary battery
10/04/2012WO2012078614A3 Switch-mode power supply with enhanced current source capability
10/04/2012US20120253719 Method and apparatus of electrical device characterization
10/04/2012US20120253718 Presentation of unbalance information for electrical asset management
10/04/2012US20120249122 Measurement and apparatus for electrical measurement of electrical drive parameters for a mems based display
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