| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 02/08/2012 | CN202141755U 一种近高压电的无线预警装置 A wireless device near high-voltage warning of |
| 02/08/2012 | CN202141754U 万用表防误测装置 Multimeter anti-error measurement device |
| 02/08/2012 | CN202141753U 高直流电压母线上微小电压变化量采集电路 The high DC voltage bus voltage variation tiny acquisition circuit |
| 02/08/2012 | CN202141752U 一种金属氧化锌避雷器在线监测装置 A metal MOA-line monitoring devices |
| 02/08/2012 | CN202139321U 一种具有自动检测控制电流密度的电镀装置 An automatic detection and control means having the current density of the plating |
| 02/08/2012 | CN1979182B 双对数放大器相位-幅度探测器 Double logarithmic amplifier phase - amplitude detector |
| 02/08/2012 | CN102347638A Method and apparatus for use in monitoring operation of electrical switchgear |
| 02/08/2012 | CN102346216A Circuit capable of realizing accurate measurement of alternating current zero-crossing signal by using linear opticalcoupler |
| 02/08/2012 | CN102346215A Low-voltage alarm circuit with general battery pack |
| 02/08/2012 | CN102346214A Method and device for monitoring abnormal power consumption of terminal equipment |
| 02/08/2012 | CN102346213A Weak current detection sensor |
| 02/08/2012 | CN102346212A Method for determining electrical power signal levels in a transmission system |
| 02/08/2012 | CN102346211A Alternating-current (ac) real current detection apparatus and detection method thereof |
| 02/08/2012 | CN102346210A System on chip (SOC) for detecting voltage of underwater sound sensor |
| 02/08/2012 | CN102345878A Flame ion current intensity detection and pulse ignition circuit |
| 02/08/2012 | CN101666858B 开关磁阻电机双主开关功率变换器主开关故障诊断方法 Switched reluctance motor dual master switching power converter main switch fault diagnosis method |
| 02/08/2012 | CN101592710B 直流开关线圈动作电压测试方法 Operation voltage DC switch coil test method |
| 02/08/2012 | CN101564786B 一种测量电弧压力分布和电流密度分布的装置及测量方法 An apparatus and method for measuring the arc pressure distribution and the current density distribution measurement |
| 02/08/2012 | CN101526562B 一种分布式无线高压设备绝缘带电测试系统及测试方法 A distributed wireless high-voltage equipment insulation live test systems and test methods |
| 02/08/2012 | CN101490564B 电位传感器 Potential sensor |
| 02/02/2012 | WO2012013883A1 Determination of the fundamental frequency of a periodic signal including harmonic components |
| 02/02/2012 | WO2011135030A4 Voltage sensing arrangement for a flyback converter |
| 02/02/2012 | US20120025807 Intelligent electronic device with broad-range high accuracy |
| 02/02/2012 | US20120025806 Method and apparatus for wave detection |
| 02/02/2012 | US20120025805 Voltage detection circuit and method for controlling the same |
| 02/01/2012 | EP2413147A1 Protection of unsealed electrical connectors |
| 02/01/2012 | EP2066017B1 Method of operating a wind energy system with a voltage-dependent control for an electric reactive quantity to be provided |
| 02/01/2012 | CN202133738U 一种故障电弧的检测保护装置 Detecting an arc fault protection device |
| 02/01/2012 | CN202133724U 零序电压互感器的误差试验装置 Error test device zero sequence voltage transformer |
| 02/01/2012 | CN202133715U Distributed electric energy metering system based on sensing net |
| 02/01/2012 | CN202133714U Presettable monitoring alarm device of household electricity consumption loads |
| 02/01/2012 | CN202133713U 电平双段分布指示仪 Two-stage distribution level indicator |
| 02/01/2012 | CN202133712U 一种峰值检波电路 One kind of peak detector circuit |
| 02/01/2012 | CN202133711U 基于dlms/cosem的电压波动记录装置 Based on voltage fluctuations dlms / cosem recording device |
| 02/01/2012 | CN202133710U Pdu智能管理单元 Pdu intelligent management unit |
| 02/01/2012 | CN202133709U 一种对交流电网电压系统过零检测电路 Kind of ac mains voltage zero crossing detection circuit system |
| 02/01/2012 | CN202133708U 电流检测电路 A current detecting circuit |
| 02/01/2012 | CN202133707U 一种交流伺服系统直流母线电压检测装置 An AC servo system DC bus voltage detection device |
| 02/01/2012 | CN202133706U 感应式高灵敏测电装置 Inductive sensitive measuring electrical device |
| 02/01/2012 | CN202133705U 巡查用多功能巡检棒 Multifunction patrol patrol stick |
| 02/01/2012 | CN202133704U 一种电子交流毫微伏测量仪 An electronic exchange nanovolts meter |
| 02/01/2012 | CN202133703U 太阳能供电氧化锌避雷器在线监测仪 Solar powered MOA line monitor |
| 02/01/2012 | CN202133702U 低功耗信号驱动交直流数字电流表 Low-power signal to drive AC-DC digital ammeter |
| 02/01/2012 | CN202133701U 全光纤电流传感器 All-fiber current sensor |
| 02/01/2012 | CN202133700U 电机控制器电流传感器 Motor controller current sensor |
| 02/01/2012 | CN102341717A General purpose protocol engine |
| 02/01/2012 | CN102340175A Energy saving control circuit |
| 02/01/2012 | CN102338847A Device and method for measuring solar battery performance curves |
| 02/01/2012 | CN102338838A Creepage detection circuit |
| 02/01/2012 | CN102338833A Method and device for detecting abnormality of mains supply quickly |
| 02/01/2012 | CN102338827A Method for analyzing electric network waveform distortions and automatically monitoring electric power harmonic parameters |
| 02/01/2012 | CN102338824A Novel extensible system for detecting voltage of single fuel cell |
| 02/01/2012 | CN102338823A Power failure detection method and circuit for electric meter system |
| 02/01/2012 | CN102338822A Current measuring device and current measuring method thereof |
| 02/01/2012 | CN102338769A On-line measuring method of water content in membranes of proton exchange membrane fuel cells |
| 02/01/2012 | CN102338384A Flame probing device of combustor |
| 02/01/2012 | CN101949973B 地电位测量方法 Ground measurement methods |
| 02/01/2012 | CN101865715B 一种用于车载定位终端的油量信号同步补偿方法 Oil signal synchronization compensation method for vehicle positioning terminal |
| 02/01/2012 | CN101752906B 高压开关智能化控制系统及其控制方法 High-voltage switchgear intelligent control system and control method |
| 02/01/2012 | CN101748471B 一种滚镀过程中电流密度实时在线测试装置 A current density during the real-time online test device barrel |
| 02/01/2012 | CN101714755B 一种分离式户外高压开关 An isolated-type outdoor high-voltage switch |
| 02/01/2012 | CN101713793B 一种基于气体绝缘的直流高压测量装置 DC high voltage measurement device based on gas-insulated |
| 02/01/2012 | CN101604853B 蓄电池充放电装置 Battery charge and discharge device |
| 02/01/2012 | CN101213718B 公用事业监视系统中数据的自动化精确对准 Utilities automated data system to monitor the precise alignment |
| 01/31/2012 | US8108695 System for minimizing the power consumption of a device in a power down mode |
| 01/31/2012 | US8108162 Load calculation control method and apparatus |
| 01/27/2012 | DE202011052429U1 Clamp-Meter mit Multipunktmessung Clamp meter with multi-point measurement |
| 01/26/2012 | WO2012011306A1 Current sensor |
| 01/26/2012 | DE10257841B4 Elektrische Schaltung zur Verarbeitung eines von einem Sensor erzeugten potentialfreien Signals An electrical circuit for processing a generated from a sensor potential-free signal |
| 01/26/2012 | DE10215403B4 Schaltung zur Regelung und zur Erfassung eines Laststromes Circuitry for control and for detecting a load current |
| 01/25/2012 | CN202126490U Distributed charging and monitoring system of accumulator batteries |
| 01/25/2012 | CN202126473U Online monitoring unit for leakage currents of zinc oxide arrester |
| 01/25/2012 | CN202126472U Leakage current online monitoring device for zinc oxide arrester based on wireless synchronous techniques |
| 01/25/2012 | CN202126471U Split leakage information collecting device |
| 01/25/2012 | CN202126463U Wireless secondary voltage drop testing device |
| 01/25/2012 | CN202126462U Passive thunder collecting connector |
| 01/25/2012 | CN202126461U Safety monitoring module for electrical contact |
| 01/25/2012 | CN202126460U Direct electricity testing vehicle for switch cabinet |
| 01/25/2012 | CN202126459U Voltage detecting circuit |
| 01/25/2012 | CN202126458U Voltage sensor with shielding cable |
| 01/25/2012 | CN202126457U Voltage detection device |
| 01/25/2012 | CN1971289B A heavy current AC/DC dual-purpose clamp-current sensor |
| 01/25/2012 | CN102332731A Charging circuit |
| 01/25/2012 | CN102332721A Method for predicting harmonic current of hybrid active power filter based on optimal linear prediction theory |
| 01/25/2012 | CN102332699A Ground wire safety voltage control system |
| 01/25/2012 | CN102332697A Measuring transient electrical activity in aircraft power distribution systems |
| 01/25/2012 | CN102332468A Current sensor, inverter circuit, and semiconductor device having the same |
| 01/25/2012 | CN102331561A Battery voltage detection circuit and battery management system |
| 01/25/2012 | CN102331543A Support vector machine based fault electric arc detection method |
| 01/25/2012 | CN102331537A Alternating current (AC) and direct current (DC) determining circuit of cable on-line monitor |
| 01/25/2012 | CN102331535A Alternating current physical quantity measuring device and method as well as data acquisition device and method |
| 01/25/2012 | CN102331525A Distributed type on-line harmonic detecting system based on Internet of construction equipment |
| 01/25/2012 | CN102331522A Isolated voltage acquisition circuit for light transmission equipment |
| 01/25/2012 | CN102331521A 10kV handcart switch simple electricity testing device |
| 01/25/2012 | CN102331520A Fiber current sensor with reduced temperature sensitivity |
| 01/25/2012 | CN102331519A Magnetic field current sensors |
| 01/25/2012 | CN102331518A Current sensor |
| 01/25/2012 | CN102331517A Inductive current detection circuit and DC-DC (direct current to direct current) power switch converter |
| 01/25/2012 | CN102331276A Multi-data synchronous comprehensive measurer |
| 01/25/2012 | CN102331229A Axial displacement monitoring protection instrument |