| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 03/27/2013 | CN202840243U Ionic wind air flow accelerating device and electric current density testing device thereof |
| 03/27/2013 | CN202839891U Mobile phone battery and identification circuit of cell of battery |
| 03/27/2013 | CN202838297U Movable emergency lighting power supply man-machine interactive system |
| 03/27/2013 | CN202838013U Test device for valve control system of graded controllable shunt reactor |
| 03/27/2013 | CN202837511U Lithium battery voltage separate detection device |
| 03/27/2013 | CN202837510U Low battery alarm device |
| 03/27/2013 | CN202837471U Low-current grounding system single-phase earth fault wire discrimination device |
| 03/27/2013 | CN202837468U Multi-point earth fault monitor of master iron core |
| 03/27/2013 | CN202837467U Convenient and telecontrol channel testing device |
| 03/27/2013 | CN202837423U Wireless GPRS wind power power grid electric energy quality detection device based on DSP and ARM |
| 03/27/2013 | CN202837422U FPGA and DSP-based wind-power-generation electric-energy quality monitoring device |
| 03/27/2013 | CN202837388U Current and voltage patrol detector of substation |
| 03/27/2013 | CN202837387U Monitoring device for mandatory use of electrical equipment |
| 03/27/2013 | CN202837386U Measuring device for transient voltage signals |
| 03/27/2013 | CN202837385U Zero-cross detection circuit |
| 03/27/2013 | CN202837384U Self-adapting flyback switching power supply quasi-resonance trough detection circuit |
| 03/27/2013 | CN202837383U System for batch measurement of battery voltage |
| 03/27/2013 | CN202837382U Testing devices for generating overvoltage |
| 03/27/2013 | CN202837381U AC power down early-warning signal circuit |
| 03/27/2013 | CN202837380U Neon-tube test pencil |
| 03/27/2013 | CN202837379U Power failure/recovery alarm device |
| 03/27/2013 | CN202837378U Constant current corona triode polarization device with controllable grid voltage |
| 03/27/2013 | CN202837377U Voltage sensor utilizing zinc oxide resistors as partial-voltage devices |
| 03/27/2013 | CN202837376U Mileage increasing motorcycle current detecting circuit |
| 03/27/2013 | CN202837375U Electric current loop for voltage and current measuring signal transmission |
| 03/27/2013 | CN202837374U Current detection circuit |
| 03/27/2013 | CN202837373U Detection device for microcurrent signals outputted by frequency converter |
| 03/27/2013 | CN202837372U Voltage detection circuit |
| 03/27/2013 | CN202837371U Integrated electrical parameter collector |
| 03/27/2013 | CN202837370U Voltage measuring circuit with functions of electrical isolation and electromagnetic interference suppression |
| 03/27/2013 | CN202837369U Charging detection device for electric vehicle |
| 03/27/2013 | CN202837368U AC measuring device superposed large DC bias |
| 03/27/2013 | CN202837367U Batch measurement device for battery voltage |
| 03/27/2013 | CN202837358U Bi-layer integrated three-phase kilowatt-hour meter wiring and current measurement load control unit |
| 03/27/2013 | CN202837342U Current metering device mounting housing and current metering device assembly |
| 03/27/2013 | CN202836782U Field ground temperature wireless monitoring system |
| 03/27/2013 | CN202822214U Automatic detection circuit of disinfection cabinet dying unit |
| 03/27/2013 | CN103003705A Battery pack voltage detection device |
| 03/27/2013 | CN103001503A Circuit for discharging X capacitor |
| 03/27/2013 | CN103001282A Charge variable current protector |
| 03/27/2013 | CN103001279A Vehicle battery charging apparatus |
| 03/27/2013 | CN103001189A Converter overvoltage and overcurrent fault alarming protective circuit |
| 03/27/2013 | CN103001187A Frequency inverter and method for detecting and blocking a fault current in a frequency inverter |
| 03/27/2013 | CN103001175A Electrical monitoring device and method for safeguarding the protective function of a type A residual current device |
| 03/27/2013 | CN102998648A Multifunctional electric meter for alternating and direct currents |
| 03/27/2013 | CN102998646A Quick calibrating device of semiconductor direct current parameter measurement module group |
| 03/27/2013 | CN102998622A Remote control and method and device for detecting battery voltage of remote control |
| 03/27/2013 | CN102998609A Photovoltaic module heat cycle test circuit monitoring device |
| 03/27/2013 | CN102998602A Method of inspecting influence of impulse voltage on power frequency device in power frequency and impulse synthetic and combined testing |
| 03/27/2013 | CN102998595A Cable uniform current detection device and method for achieving same |
| 03/27/2013 | CN102998572A Playback device and method for recording power qualities |
| 03/27/2013 | CN102998567A Intelligent power equipment |
| 03/27/2013 | CN102998522A Current measurement device and method |
| 03/27/2013 | CN102998521A Ground-current remote monitor for transformer cores |
| 03/27/2013 | CN102998520A Digital display high-voltage electroscope of telescopic rod |
| 03/27/2013 | CN102998519A Nearby electricity alarm |
| 03/27/2013 | CN102998518A Automatic measurement method of active current |
| 03/27/2013 | CN102998517A Hall current detection device |
| 03/27/2013 | CN102998516A Detection circuit for voltage state of output channel |
| 03/27/2013 | CN102998515A Over-current detection and protection circuit for output channel |
| 03/27/2013 | CN102998514A Electrode current measuring device used for low pressure compensation of submerged arc furnace |
| 03/27/2013 | CN102998513A MOS (metal oxide semiconductor) tube threshold voltage test circuit |
| 03/27/2013 | CN102998512A Direct-current high-voltage isolation sampling circuit |
| 03/27/2013 | CN102998511A Discharge current monitoring device of lightning arrester |
| 03/27/2013 | CN102998510A Voice prompt detection method for park management system |
| 03/27/2013 | CN102998509A Current sensor comprising differential amplifier biased by leakage current |
| 03/27/2013 | CN102998508A Arrangement and method for measurements on HV battery |
| 03/27/2013 | CN102998507A Sensor devices and methods for use in sensing current through a conductor |
| 03/27/2013 | CN102998506A Sensor devices and methods for use in sensing current through a conductor |
| 03/27/2013 | CN102998505A Battery undervoltage detecting circuit |
| 03/27/2013 | CN102998502A High-isolation voltage-resisting bidirectional signal sensor |
| 03/27/2013 | CN102121967B Diagnostor for predicting operation state of three-phase rotating electromechanical equipment in time |
| 03/27/2013 | CN102062807B Current measuring device and method |
| 03/27/2013 | CN102033184B Voltage distribution wireless measurement system of lightning arrester |
| 03/27/2013 | CN102024314B Method and device for replacing rotating platform signal slip ring |
| 03/27/2013 | CN102023248B Direct current bus voltage sampling device of medium-voltage frequency converter |
| 03/27/2013 | CN102004686B Current measuring device and computer system thereof |
| 03/27/2013 | CN101937030B 基板检查方法 Substrate inspection method |
| 03/27/2013 | CN101849189B Current integrator with wide dynamic range |
| 03/26/2013 | US8407642 Leak current calculation apparatus and method for calculating leak current |
| 03/26/2013 | US8407019 Multi-circuit direct current monitor with modbus serial output |
| 03/26/2013 | US8405382 Selectable delta or wye voltage configuration for power measurement |
| 03/23/2013 | CA2789754A1 System including an indicator responsive to an electret for a power bus |
| 03/21/2013 | WO2013038898A1 Voltage monitoring circuit, and vehicle equipped with same |
| 03/21/2013 | WO2013038762A1 Voltage measuring device |
| 03/21/2013 | WO2013038343A1 High voltage indicator |
| 03/21/2013 | WO2013038176A2 Current measurement |
| 03/21/2013 | WO2013037548A1 Measuring resistor for current sensor and current sensor unit |
| 03/21/2013 | US20130070088 Method for measuring electronic multiplication factor |
| 03/21/2013 | US20130069693 Sense amplifier and electronic apparatus using the same |
| 03/21/2013 | US20130069677 Electrostatic shielding technique on high voltage resistor |
| 03/21/2013 | US20130069653 Device for power measurement and magnetic resonance device |
| 03/21/2013 | US20130069631 Current sensing system and method |
| 03/21/2013 | US20130069629 Method of implementation of peak hold in a phasing voltmeter |
| 03/21/2013 | US20130069628 Optical fibre birefringence compensation mirror and current sensor |
| 03/21/2013 | US20130069624 Low-voltage differential signal activity detector |
| 03/21/2013 | US20130069623 Current detector allowing a large supply voltage range |
| 03/21/2013 | US20130069620 Method for operating a metal detection apparatus and apparatus |
| 03/21/2013 | DE102012211749A1 Messwiderstand für Stromsensor und Stromsensoreinheit Measuring resistor for current sensor and the current sensor unit |
| 03/21/2013 | DE102012211733A1 Messwiderstand für Stromsensor und Stromsensoreinheit Measuring resistor for current sensor and the current sensor unit |