| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 01/11/2012 | CN102313593A Dual-channel shaft vibration monitoring protection instrument |
| 01/11/2012 | CN102313562A Method and circuit for carrying out compensation on additional phase drift of Y-shaped waveguide |
| 01/11/2012 | CN101876672B Device for quickly debugging and testing grid voltage of power amplification module and method thereof |
| 01/11/2012 | CN101858946B Method for testing single crystal boundary impact aging characteristic of zinc oxide pressure-sensitive resistor |
| 01/11/2012 | CN101819225B Magneto-optical current sensor and manufacturing method thereof |
| 01/11/2012 | CN101750532B Method for detecting IGBT (Insulated Gate Bipolar Translator) recoil high voltage intensity in electromagnetic oven and circuit thereof |
| 01/11/2012 | CN101726648B Neuron adaptive harmonic current detection circuit based on low pass filter |
| 01/11/2012 | CN101561458B Method and device for measuring current on line |
| 01/11/2012 | CN101309045B Equalizer circuit of electric power indication, auxiliary power start and electrolytic capacitor |
| 01/11/2012 | CN101047316B System, method, and article for determining parameter values associated with an electrical grid |
| 01/10/2012 | CA2467054C Method and apparatus for determining a current in a conductor |
| 01/10/2012 | CA2335814C Adaptive sampling rate based on power system frequency |
| 01/05/2012 | WO2012003426A2 Apparatus for calibrated non-invasive measurement of electrical current |
| 01/05/2012 | WO2012000510A1 Method and system for monitoring structural health of a filter in a wind turbine, and a wind turbine |
| 01/05/2012 | US20120004868 Apparatus and method to characterize multijunction photovoltaic solar cells |
| 01/05/2012 | US20120001645 Combined electrical variable detection device |
| 01/05/2012 | US20120001618 System for monitoring capacitor cells |
| 01/05/2012 | US20120001588 Battery charger, voltage monitoring device and self-diagnosis method of reference voltage circuit |
| 01/05/2012 | DE102011078548A1 Stromsensor Current sensor |
| 01/05/2012 | DE102011013967A1 Maximum current determination method for high voltage battery of motor car, involves determining maximum current from given voltage threshold value, computed open cell voltage and internal resistance of single cells of battery |
| 01/04/2012 | EP2402771A2 Power monitoring device for identifying state of electric appliance and power monitoring method thereof |
| 01/04/2012 | CN202103363U Transposition device with voltage alarm function |
| 01/04/2012 | CN202103361U High-voltage electrified locking device |
| 01/04/2012 | CN202102075U Numerically-controlled power supply security board |
| 01/04/2012 | CN202102074U Ekl fault indicator |
| 01/04/2012 | CN202102070U Phase current sampling circuit for electric vehicle motor controller |
| 01/04/2012 | CN202102060U Direct current distribution intelligent detection unit |
| 01/04/2012 | CN202102059U Power unit testing apparatus |
| 01/04/2012 | CN202102049U Precise metering module based on DSP |
| 01/04/2012 | CN202102047U High-tension side small current tester |
| 01/04/2012 | CN202102046U Harmonic monitor capable of displaying harmonic flow direction |
| 01/04/2012 | CN202102045U Filter capacitor voltage tester |
| 01/04/2012 | CN202102044U High-voltage electrified display with electricity testing phasing function |
| 01/04/2012 | CN202102043U Detecting alarm for household appliances |
| 01/04/2012 | CN202102042U Ground supervoltage induction type electricity checking device |
| 01/04/2012 | CN202102041U 10kV handcart switch simple electricity testing device |
| 01/04/2012 | CN202102040U Transformer load long-distance measuring device |
| 01/04/2012 | CN202096288U High frequency electrotome output current and voltage detection system for operation |
| 01/04/2012 | CN1722561B Battery protection circuit |
| 01/04/2012 | CN102308348A Current transformer and current detection circuit and detection method |
| 01/04/2012 | CN102308225A Power metering and merging unit capabilities in a single IED |
| 01/04/2012 | CN102305890A Direct-current voltage detection method of submodule of flexible direct-current transmission system |
| 01/04/2012 | CN102305889A Dual mode 220v user side power grid phasor measuring and transmitting device and method |
| 01/04/2012 | CN102305888A Device for acquiring and processing vegetable electricity distribution and change rule of vegetable electricity together with environment |
| 01/04/2012 | CN102305887A Discharging current counter |
| 01/04/2012 | CN102305886A Fundamental voltage synchronous signal detection method during harmonic distortion and unbalance of network voltage |
| 01/04/2012 | CN102305885A Isolation type voltage sensor |
| 01/04/2012 | CN102305669A Thermocouple measurement in a current carrying path |
| 01/04/2012 | CN101871965B Method for detecting zero crossing time, frequency and phase difference of power sinusoidal signals |
| 01/04/2012 | CN101788593B State monitoring and analysis system of power cable sheath grounding current and method thereof |
| 01/04/2012 | CN101706551B Testing circuit for forecasting failure of back bias voltage unstability of integrated circuit |
| 01/04/2012 | CN101706527B Method for detecting arc faults based on time-frequency characteristics of high-frequency current component |
| 01/04/2012 | CN101660808B Air conditioner and frost removal control method thereof |
| 01/04/2012 | CN101608927B System and method for objective self-diagnosis of measurement device calibration condition |
| 01/04/2012 | CN101598748B Thermo-compensation current sensing head as well as alternate current measurement method and system |
| 01/04/2012 | CN101452677B Drive device, backlight module and drive method |
| 01/04/2012 | CN101388550B Intelligent building electricity saving and distributing apparatus |
| 01/04/2012 | CN101351719B Device for monitoring cell voltage |
| 01/03/2012 | US8089291 Electromagnetic wave generation source searching method and current probe used therefor |
| 01/03/2012 | US8089264 Voltage measuring circuit |
| 01/03/2012 | CA2617448C Arrangements to detect and respond to disturbances in electrical power systems |
| 01/03/2012 | CA2447200C Surge counter/detector apparatus, system and method |
| 12/29/2011 | WO2011163331A2 Determining the state-of-charge of batteries via selective sampling of extrapolated open circuit voltage |
| 12/29/2011 | WO2011126314A3 Voltage detection assembly for battery module and battery module including same |
| 12/29/2011 | WO2011119202A3 Systems for monitoring power consumption |
| 12/29/2011 | US20110317380 Printed circuit board and voltage/current measuring method using the same |
| 12/29/2011 | US20110317317 Method and Device for Delaying Activation Timing of Output Device |
| 12/29/2011 | US20110316601 Method and Device for Delaying Activation Timing of Output Device |
| 12/29/2011 | US20110316524 Apparatus for diagnosing dc-dc converter and method thereof |
| 12/28/2011 | EP2399223A2 Systems and methods of optical code reading using a color imager |
| 12/28/2011 | CN202095008U 一种摄像机及其光敏电阻的检测电路 A camera and a detection circuit photoresistor |
| 12/28/2011 | CN202094642U Signal acquisition device based on dynamic scalable vector graphics (SVG) for reactive compensation |
| 12/28/2011 | CN202094627U 带修正电压互感器的消谐器 Correction voltage transformer with harmonic elimination |
| 12/28/2011 | CN202094626U 一种电器接地检测和泄压保护装置 An electric appliance ground fault detection and protection devices relief |
| 12/28/2011 | CN202094594U 适用于三相交流电压测量的电路 For three-phase AC voltage measuring circuit |
| 12/28/2011 | CN202093153U 一种充电电池的过压检测和报警电路 A rechargeable battery overvoltage detection and alarm circuit |
| 12/28/2011 | CN202093137U 一种智能功率模组应用参数测试平台 An intelligent power module application parameters of the test platform |
| 12/28/2011 | CN202093124U 多功能测电笔 Multi-function test pencil |
| 12/28/2011 | CN202093120U 变压器铁心接地电流与局放信号复合传感器 Ground current transformer core and composite sensor signal PD |
| 12/28/2011 | CN202093102U 一种雷击浪涌发生器 One kind of lightning surge generator |
| 12/28/2011 | CN202093090U 交流电压无谷底填充效应检测电路 AC voltage detection circuit no bottom filling effect |
| 12/28/2011 | CN202093089U 交直流电流智能采集终端 AC and DC current intelligence collection terminal |
| 12/28/2011 | CN202093088U 一种电力参数测量装置 An electrical parameter measurement device |
| 12/28/2011 | CN202093087U 电流感应器 Current sensors |
| 12/28/2011 | CN202093086U 一种电压监测电路 A voltage-monitoring circuit |
| 12/28/2011 | CN202093085U 燃气管道阴极保护智能测试桩 Intelligent gas pipeline cathodic protection test piles |
| 12/28/2011 | CN202093084U 一种汽车电动助力转向器马达电流采样电路 An automobile electric power steering motor current sampling circuit |
| 12/28/2011 | CN202093083U 井下仪器缆头电压直接测量装置 Downhole cable head voltage direct measurement device |
| 12/28/2011 | CN202093082U 分体式金属氧化物避雷器同步阻性电流带电测量装置 Split MOA synchronization resistive current measurement device charged |
| 12/28/2011 | CN202093081U 一种电压数据采集记录系统以及装置 A voltage-recording system and data acquisition devices |
| 12/28/2011 | CN202093045U 航空器转速表虚拟试验器 Aircraft Tachometer virtual tester |
| 12/28/2011 | CN102301246A 具有高电流和低电流放电接线柱的电池组盒 With high current and low current discharge terminal of the battery pack case |
| 12/28/2011 | CN102299568A 无线供电检测控制方法与系统 Wireless power control method and system for detecting |
| 12/28/2011 | CN102299500A 无线整合型电力控制装置 Wireless integrated power control device |
| 12/28/2011 | CN102299494A 高压带电闭锁装置 High-voltage electric locking device |
| 12/28/2011 | CN102298110A 太阳能电池电气特性的测量方法及装置 Method and apparatus for measuring electrical properties of solar cells |
| 12/28/2011 | CN102298087A 根据风管式空调室内机直流电机转速测量电网电压的方法 The method according Duct Air Conditioner DC motor speed measurement grid voltage |
| 12/28/2011 | CN102298086A 电动机电流检测用集成电路及其电流检测器或控制装置 Motor current detecting integrated circuit and a current detector or the control means |
| 12/28/2011 | CN102298085A 负载板 Load board |
| 12/28/2011 | CN102298083A 雷击专用数字存储示波器及其测量方法 Lightning dedicated digital storage oscilloscope and measurement methods |