| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 07/25/2012 | CN102608409A Digital compensation method for measuring resistive current of MOA (metal oxide arrester) |
| 07/25/2012 | CN102608408A Current monitoring device for transformer core |
| 07/25/2012 | CN102608407A Device for detecting stabilizing voltage value of voltage stabilizing diode |
| 07/25/2012 | CN102608406A Electric current monitoring terminal of online monitoring device for capacitive equipment of transformer substation |
| 07/25/2012 | CN102608405A Portable and non-intervention X-ray generator tube current measuring instrument |
| 07/25/2012 | CN102608404A Voltage sampling circuit and controller applicable to dual-power automatic transfer switch |
| 07/25/2012 | CN102608403A Error detection method and system of reference voltage |
| 07/25/2012 | CN102608402A Measuring Sum of Squared Current |
| 07/25/2012 | CN102608401A Measurement system and measurement method for disturbance voltage and disturbance current of GIS (gas insulated switchgear) secondary system |
| 07/25/2012 | CN102608400A Online monitoring device of lightning arrester |
| 07/25/2012 | CN102608399A High-voltage electrified display locking device |
| 07/25/2012 | CN102608398A High-voltage electrified display device |
| 07/25/2012 | CN102608397A Anti-separation high-voltage electroscope |
| 07/25/2012 | CN102608396A Current state judgment and dead-zone compensating method of frequency converter |
| 07/25/2012 | CN102608395A Device and method for analysing the density of a beam of charged particles |
| 07/25/2012 | CN102608394A Line corona current measurement system and method |
| 07/25/2012 | CN102608393A Current collecting device for photovoltaic confluence |
| 07/25/2012 | CN102608392A MOA (metal oxide arrester) resistive current detection system |
| 07/25/2012 | CN102608391A Portable monitoring device used for detecting resistive current of MOA (Metal Oxide Arrester) |
| 07/25/2012 | CN102608390A CVT (constant-voltage transformer) secondary voltage acquisition circuit for CVT monitoring device |
| 07/25/2012 | CN102608389A Measurement method and measurement system for VFTC (very fast transient current) |
| 07/25/2012 | CN102608388A VFTO (very fast transient overvoltage) measurement method and system |
| 07/25/2012 | CN102608387A Hall handle detector for electromobile |
| 07/25/2012 | CN102608386A High side signal sensing circuit |
| 07/25/2012 | CN102608385A Acquiring method and device of primary side current of transformer |
| 07/25/2012 | CN102608384A Current difference sensors, systems and methods |
| 07/25/2012 | CN102608383A Current measuring systems and methods of assembling the same |
| 07/25/2012 | CN102608382A Power switch current estimator at gate driver |
| 07/25/2012 | CN102608381A Systems, methods, and apparatus for detecting lightning strikes |
| 07/25/2012 | CN102043079B Arc characteristic detecting device and method |
| 07/25/2012 | CN101943745B Device, system and method for detecting voltage of single batteries of serial lithium battery pack |
| 07/25/2012 | CN101943727B Online detection device of surge protector |
| 07/25/2012 | CN101943722B On-line detecting device for surge protector |
| 07/25/2012 | CN101915895B Dynamic potential detection circuit for DC motor |
| 07/25/2012 | CN101915878B Method for measuring depoissonization time of ferroelectric film |
| 07/25/2012 | CN101893663B Test device for electrical control and protection system |
| 07/25/2012 | CN101865946B Alternating current parameter testing system and method of programmable digital integrated circuit |
| 07/25/2012 | CN101844725B Line voltage drop automatic detection control method for hoisting machinery |
| 07/25/2012 | CN101834425B Man-mobile phone-network double-communication power supply |
| 07/25/2012 | CN101769958B High-voltage capacitor bank branch current monitoring device |
| 07/25/2012 | CN101740838B Battery pack, method for monitoring battery pack and electronic system |
| 07/25/2012 | CN101688892B Method and device to predict a state of a power system in the time domain |
| 07/25/2012 | CN101609136B Voltage transformer secondary voltage drop tester and phase-angle difference testing method thereof |
| 07/25/2012 | CN101598770B Testing method of computer and computer system |
| 07/25/2012 | CN101498766B Test apparatus for charging function of electronic product |
| 07/24/2012 | US8228072 Test and measurement instrument with an automatic threshold control |
| 07/19/2012 | WO2012096212A1 Current sensor |
| 07/19/2012 | WO2012095208A1 Device for measuring a battery voltage |
| 07/19/2012 | WO2012094902A1 Method and device for detecting state of overcurrent protector for battery |
| 07/19/2012 | WO2012052868A3 Disaggregation apparatus, method and program |
| 07/19/2012 | WO2012049680A4 Wideband signal analyzer |
| 07/19/2012 | WO2012014086A3 Rectified sine wave detection for power factor correction circuit |
| 07/19/2012 | US20120185192 Scheme for low power measurement |
| 07/19/2012 | DE102011002756A1 Strommessvorrichtung zum Erfassen eines Stroms, Solarinverter und Verfahren zum Erfassen eines Stroms A current sensing device for detecting a current, solar inverter and method for detecting a current |
| 07/19/2012 | DE102011002621A1 Vorrichtung zum Messen einer Batteriespannung An apparatus for measuring a battery voltage |
| 07/18/2012 | EP2477323A2 Drive circuit and drive method of a stepping motor |
| 07/18/2012 | EP2477002A2 Advanced metering infrastructure (AMI) cartridge for an energy meter |
| 07/18/2012 | CN202340209U 机载电源多路输出开关控制及电流检测系统 Airborne multi-output switching power supply control and current detection system |
| 07/18/2012 | CN202340033U 一种电流过载报警插排 A current overload alarm Strip |
| 07/18/2012 | CN202339848U 油井配电柜用验电拉闸绝缘装置 Well examine the electrical distribution cabinet with insulation means wind up |
| 07/18/2012 | CN202339376U 用于电动汽车动力电池的电流采集电路 Current acquisition circuit for electric vehicle batteries |
| 07/18/2012 | CN202339375U 一种发电机发电电压和电流采集器 An electric generator power voltage and current collector |
| 07/18/2012 | CN202339374U 一种新型雷电峰值电压在线记录仪 A new lightning peak voltage line recorder |
| 07/18/2012 | CN202339373U 一种性能稳定、耐用的测电笔 Stable performance, durable pencil |
| 07/18/2012 | CN202339372U 一种带电指示器 A charged indicator |
| 07/18/2012 | CN202339371U 一种pt二次回路压降实时同步测量装置 One kind of real-time synchronization pt secondary circuit voltage drop measurement device |
| 07/18/2012 | CN202339370U 一种矿用双路三相电流传感器 Ore with dual three-phase current sensor |
| 07/18/2012 | CN102598200A Sensor for measuring plasma parameters |
| 07/18/2012 | CN102594210A Photovoltaic power generating module and photovoltaic power generating system |
| 07/18/2012 | CN102594157A Signal acquisition device and processing method for alternating current power current-sharing output system |
| 07/18/2012 | CN102594125A Secondary power supply circuit for MOA resistive current detecting system |
| 07/18/2012 | CN102593484A Measuring system for cells in a fuel cell stack |
| 07/18/2012 | CN102590782A Method and device for automatically correcting voltage influence quantity of electric energy measurement chip |
| 07/18/2012 | CN102590752A Testing method for voltage increasing rate and decreasing rate of battery pack |
| 07/18/2012 | CN102590728A Voltage-regulator diode performance tester |
| 07/18/2012 | CN102590718A System for GIS (Global Information System) partial discharge measurement and VFTO (Very Fast Transient Overvoltage) measurement |
| 07/18/2012 | CN102590708A Method for identifying lightning stroke fault and non-lightning stroke fault of transmission line |
| 07/18/2012 | CN102590697A Cable on-line monitoring device for wireless transmission |
| 07/18/2012 | CN102590646A Method for detecting positive sequence, negative sequence and harmonic current based on phase sequence filter |
| 07/18/2012 | CN102590636A Portable double-shielding standard capacitor |
| 07/18/2012 | CN102590608A Environment temperature compensation heavy current measurement system based on fiber polarization detection |
| 07/18/2012 | CN102590607A Motor end overvoltage estimation method |
| 07/18/2012 | CN102590606A Uniformly-spaced sampling circuit and sampling method for different frequency signals |
| 07/18/2012 | CN102590605A A current sensor for measuring electric current in a conductor and a short circuit indicator system comprising such a sensor |
| 07/18/2012 | CN102590604A Wide voltage data collection device based on complex programmable logic device (CPLD) |
| 07/18/2012 | CN102590603A Through flow sampling method of check protection device |
| 07/18/2012 | CN102590602A Signal processing method by adopting public processing circuit during collection of alternating-current voltage and current |
| 07/18/2012 | CN102590601A Wide-range current monitoring device |
| 07/18/2012 | CN102590600A Stray current sensor of subway reflux system |
| 07/18/2012 | CN102590599A Circuit for measuring high common-mode voltage differential signal for low voltage AD (analogue to digital) chip |
| 07/18/2012 | CN102590598A Method for predicting zero crossing point of ultrasonic signal based on multi-threshold comparison |
| 07/18/2012 | CN102590597A Circuit and method for detecting abnormal current of mobile phone |
| 07/18/2012 | CN102590596A Circuit for detecting peak value of sine wave |
| 07/18/2012 | CN102590595A High-voltage current detection method and detection device |
| 07/18/2012 | CN102590594A Transient state thermal circuit model-based method and device for determining permissible current of overhead conductor |
| 07/18/2012 | CN102590593A Steady state thermal circuit model-based method and device for determining permissible current of overhead conductor |
| 07/18/2012 | CN102590592A Device for precisely detecting voltage of lithium battery pack |
| 07/18/2012 | CN102590591A Detection circuit for monitoring state of current transformer |
| 07/18/2012 | CN102590590A Ampere meter |
| 07/18/2012 | CN102590589A 4-20mA current transmitter circuit |