| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 07/18/2012 | CN102590588A Instantaneous power-down monitoring device and power-down processing method for DC power supply |
| 07/18/2012 | CN102590587A Device and method for identifying short-circuit current of medium-voltage high-current direct current circuit breaker |
| 07/18/2012 | CN102590586A Photoelectric current transformer for supplying power for transmission line insulator |
| 07/18/2012 | CN102590585A Measuring device for large current of power grid |
| 07/18/2012 | CN102590584A Large current detecting device based on optical means |
| 07/18/2012 | CN102590583A System and method for measuring current of electric furnace |
| 07/18/2012 | CN102590582A Photocurrent data acquisition system |
| 07/18/2012 | CN102590581A Device for detecting power failure |
| 07/18/2012 | CN102590580A Circuit and method for sampling excitation inductance current of integrated transformer |
| 07/18/2012 | CN102590579A DI/dT current sensing |
| 07/18/2012 | CN102590578A Faraday mirror optical current transformer for transformer substation |
| 07/18/2012 | CN102590577A Full-optical fiber heterodyning current sensor |
| 07/18/2012 | CN102590574A Digital current transformer based on induction power supply and monitoring method for digital current transformer |
| 07/18/2012 | CN102590573A Resistive divider circuit and voltage detection circuit |
| 07/18/2012 | CN102590568A Low-heat electric potential test probe rod for superconductive AC (alternating current) voltage standard |
| 07/18/2012 | CN102209425B Radio frequency discharge plasma diagnostic device |
| 07/18/2012 | CN101995508B Device for measuring voltage of nickel hydride power battery assembly module |
| 07/18/2012 | CN101915868B Acquisition circuit for improving acquisition precision of voltage signal |
| 07/18/2012 | CN101907654B Large dynamic weak current detection device for radiation detection |
| 07/18/2012 | CN101738524B False signal eliminating circuit for low-voltage detection circuit |
| 07/18/2012 | CN101692120B Measuring measuring method for measuring maximum available energy of series storage battery pack |
| 07/18/2012 | CN101334430B High accuracy electric current and temperature on-line detection device and its sampling method |
| 07/18/2012 | CN101297220B Sensor and system for sensing an electron beam |
| 07/18/2012 | CN101290331B Circuit for measuring, limiting and switching a load current |
| 07/17/2012 | US8224599 System and method for automatic voltage range measurement |
| 07/17/2012 | US8224598 Method for forming optimal characteristic curves of solar cell and system thereof |
| 07/17/2012 | US8222887 Process for measuring peak values and power of an audio frequency signal |
| 07/17/2012 | US8222886 Voltage detecting apparatus and line voltage detecting apparatus having a detection electrode disposed facing a detected object |
| 07/12/2012 | WO2012093795A2 Method and device for estimating available time for battery |
| 07/12/2012 | WO2012092689A1 Ferroelectric analysis apparatus and method thereof for adjusting polarization reversal speed of ferroelectric domain |
| 07/12/2012 | US20120179397 Utility monitoring system |
| 07/12/2012 | US20120176103 Voltage Conversion and/or Electrical Measurements from 400 Volts Upwards |
| 07/12/2012 | DE202012102140U1 Strommessgerät mit der Funktion zur Kennung der Dreiphasen Current measuring device having a function of identifier of the three-phase |
| 07/11/2012 | EP2473863A1 Open phase detection system and method for three-phase motor |
| 07/11/2012 | EP2319117B1 Device for numerically representing a voltage |
| 07/11/2012 | CN202333787U 一种三相电流检测控制器 A three-phase current sensing controller |
| 07/11/2012 | CN202333775U 一种动力锂电池组的电池保护电路 Battery protection circuit for a power lithium batteries |
| 07/11/2012 | CN202332865U 一种光伏汇流和电流监测结构 A photovoltaic convergence and current monitoring structure |
| 07/11/2012 | CN202331431U 总线微弱信号检测仪 Bus weak signal detector |
| 07/11/2012 | CN202330693U 互感器负载装置和互感器检测装置 Transformers and transformer load device detection device |
| 07/11/2012 | CN202330685U 一种校准标准电池电动势值的装置 Apparatus for calibrating the standard battery emf values |
| 07/11/2012 | CN202330663U 电池组单体电池电压采集电路 Battery cell voltage acquisition circuit |
| 07/11/2012 | CN202330660U 一种发电机电压和电流采集器 An electric generator voltage and current collector |
| 07/11/2012 | CN202330656U 一种电机运行状态监控系统 A motor running condition monitoring system |
| 07/11/2012 | CN202330637U AC (alternating current) circuit state automatic detection encoder |
| 07/11/2012 | CN202330630U 一种mos管的电流与工作状态检测电路 One kind of mos tube current working state detection circuit |
| 07/11/2012 | CN202330613U 电解机组漏电检测装置 Electrolysis current leakage detector unit |
| 07/11/2012 | CN202330609U 电瓷监测器 Porcelain Monitors |
| 07/11/2012 | CN202330604U 一种输出显示电路 An output display circuit |
| 07/11/2012 | CN202330600U Lcr测试仪 Lcr tester |
| 07/11/2012 | CN202330599U Lcr数字电桥 Lcr digital bridge |
| 07/11/2012 | CN202330595U 直流绝缘监察继电器 DC insulation monitoring relay |
| 07/11/2012 | CN202330592U 一种智能综合监测装置 An intelligent integrated monitoring device |
| 07/11/2012 | CN202330544U 发电机电压和电流采集器 Generator voltage and current collector |
| 07/11/2012 | CN202330543U 一种多路电压测量系统 A multiple voltage measurement system |
| 07/11/2012 | CN202330542U 基于集成运放芯片的电压跟随电路 Follow op-amp chip integrated circuit based on the voltage |
| 07/11/2012 | CN202330541U 一种交流220v开入量信号采集电路 An AC 220v binary input signal acquisition circuit |
| 07/11/2012 | CN202330540U 过零检测电路 Zero-crossing detection circuit |
| 07/11/2012 | CN202330539U 一种电源输出电压的简单测试装置 A simple test apparatus the output voltage of the power supply |
| 07/11/2012 | CN202330538U 高压电缆金属护套感应电压报警装置 High voltage cable metal sheath induced voltage warning device |
| 07/11/2012 | CN202330537U 一种基于稳压二极管的过压检测电路 Zener diode based overvoltage detection circuit |
| 07/11/2012 | CN202330536U 多功能验电器 Multifunctional electroscope |
| 07/11/2012 | CN202330535U 绝缘杆式非接触验电报警器 Insulated rod non-contact inspection electric alarm |
| 07/11/2012 | CN202330534U 矿用防爆开关高压电源分相指示模块 Mine Explosion phase high-voltage power switch indicates the module |
| 07/11/2012 | CN202330533U 声光测电笔 Sound and light pencil |
| 07/11/2012 | CN202330532U 节能高压验电器 Energy-saving high-pressure electroscope |
| 07/11/2012 | CN202330531U 光电耦合器电流传输比测试装置 Optocoupler current transfer ratio test device |
| 07/11/2012 | CN202330530U 一种usb接口输出电压的实时监控装置 Usb interface device for real-time monitoring of the output voltage |
| 07/11/2012 | CN202330529U 应急灯电压电流智能记录分析系统 Emergency light voltage and current intelligence analysis system records |
| 07/11/2012 | CN202330528U 双轴磁通门电流传感器 Biaxial fluxgate current sensor |
| 07/11/2012 | CN202330527U 一种光学电场传感器 An optical electric field sensor |
| 07/11/2012 | CN202330526U 高精度动态比较器的输入失调电压测试电路 High-precision dynamic comparator input offset voltage test circuit |
| 07/11/2012 | CN202330525U 电流量程判定装置 Current range judging means |
| 07/11/2012 | CN202330524U Large range, high precision and interval type voltmeter |
| 07/11/2012 | CN202330523U 220kV电力系统电压质量监测用电容取样分压箱 220kV power system voltage quality monitoring sampling capacitor divider box |
| 07/11/2012 | CN202330522U 一种大功率电动汽车用电机控制器电流检测装置 One kind of high-power electric vehicle motor controller current detection device |
| 07/11/2012 | CN202330521U 信息化电力数据显示装置 Power data information display device |
| 07/11/2012 | CN202330520U 高电压的隔离采样电路 High voltage isolation sampling circuit |
| 07/11/2012 | CN202330519U 一种采用干涉闭环检测的磁光玻璃光学电流互感器 One kind of closed loop interference detection using magneto-optical glass optical current transformer |
| 07/11/2012 | CN202330488U 光伏电功计量表 Solar electric power meter |
| 07/11/2012 | CN202330333U 悬挂式甲烷测定器 Hanging methane detector |
| 07/11/2012 | CN102577070A Phase current detection device and power conversion device using same |
| 07/11/2012 | CN102576042A Device and method for providing electrical energy at a load circuit |
| 07/11/2012 | CN102576041A Semiconductor apparatus |
| 07/11/2012 | CN102576040A Voltage monitoring apparatus |
| 07/11/2012 | CN102570936A Rotator control device, rotator system, vehicle, electric car and electric generation system |
| 07/11/2012 | CN102570816A Synchronous rectifier bi-directional current sensor |
| 07/11/2012 | CN102570534A Electrodeless safety charger circuit |
| 07/11/2012 | CN102570533A Non-polarized safety charger circuit |
| 07/11/2012 | CN102570381A Capacitance check and current monitoring circuit for use with a circuit protection device |
| 07/11/2012 | CN102569631A Thermoelectric generator, thermoelectric generation method, electrical signal detecting device, and electrical signal detecting method |
| 07/11/2012 | CN102568145A Scattered-light fire detector with a device for suppressing an acoustic warning in the event of a low battery voltage |
| 07/11/2012 | CN102566568A Intelligent testing system and testing method for motor controller of electric vehicle |
| 07/11/2012 | CN102565718A Method for judging state of charge (SOC) of lithium battery based on rising and dropping of open-circuit voltage |
| 07/11/2012 | CN102565715A State based full and empty control for rechargeable batteries |
| 07/11/2012 | CN102565713A Flying capacitor type voltage detecting circuit and battery protection integrated circuit |
| 07/11/2012 | CN102565711A Method for testing voltage condition of battery pack |
| 07/11/2012 | CN102565696A Quick measuring device of protective pressing plate and measuring method thereof |
| 07/11/2012 | CN102565676A Automation measuring apparatus for crystal oscillator parameters |
| 07/11/2012 | CN102565670A On-line diagnosis device of relay protection device |