| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 05/30/2012 | CN102480275A 一种绝缘子全电流放大电路 One kind of insulator full current amplifier circuit |
| 05/30/2012 | CN102478616A 一种具有自适应功能的智能架空线故障报警器 Intelligent overhead line fault alarm with adaptive function |
| 05/30/2012 | CN102478614A 电流互感器断线检测方法、装置及继电保护设备 CT disconnection detection method, apparatus and protective equipment |
| 05/30/2012 | CN102478600A 一种基于单片机及计算机通信的电压测量仪 A microcontroller based on the voltage measuring instrument and computer communication |
| 05/30/2012 | CN102478599A 电网交流电压及其过零点的检测方法及检测装置 Grid AC voltage and zero-crossing detection method and detection device |
| 05/30/2012 | CN102478598A 电流测量装置 Current measuring means |
| 05/30/2012 | CN102478597A 输电杆塔高压电缆智能监测装置 Intelligent transmission tower high voltage cable monitoring device |
| 05/30/2012 | CN102478596A 一种ao信号调理装置 One kind of signal conditioning means ao |
| 05/30/2012 | CN102052943B Device for testing partial charge-to-mass ratio of fogging space in electrostatic spraying |
| 05/30/2012 | CN102004474B Detection and controller for aircraft integration test general interface |
| 05/30/2012 | CN101975885B Comprehensive electric energy detector for direct-current power supplies |
| 05/30/2012 | CN101949971B Method for selecting low-voltage storage battery |
| 05/30/2012 | CN101900751B Detection method of real-time voltage vectors in energy feedback unit |
| 05/30/2012 | CN101846702B Inductive current detection circuit |
| 05/30/2012 | CN101833062B Circuit checking method based on circuit checking instrument |
| 05/30/2012 | CN101806841B Method for determining test parameter of winding and sleeve of power transformer |
| 05/30/2012 | CN101776713B Direct capacitance-digital converter |
| 05/30/2012 | CN101702507B Method and device for essential safety anti-explosion based on dynamic monitoring and cut-off of electric spark |
| 05/30/2012 | CN101666840B Method for detecting distortion degree of inrush current of transformer |
| 05/30/2012 | CN101603978B Method and device for automatically converting measuring range in alternating current measurement |
| 05/30/2012 | CN101478151B Voltage detection and control circuit |
| 05/30/2012 | CN101441230B Method and apparatus for implementing voltage detection |
| 05/30/2012 | CN101354407B Power supply apparatus |
| 05/30/2012 | CN101283282B Current measurement circuit and method of diagnosing faults in same |
| 05/30/2012 | CN101063693B Singlechip signal sampling apparatus without module converter and sampling method thereof |
| 05/29/2012 | US8190385 System and method for testing a solar panel |
| 05/29/2012 | US8190381 Intelligent electronic device with enhanced power quality monitoring and communications capabilities |
| 05/29/2012 | US8190380 Multipoint voltage and current probe system |
| 05/29/2012 | US8188726 Method and arrangement to determine the cell capacitor voltage of a cell of a multi-cell power converter |
| 05/24/2012 | WO2012068586A1 Circuitry for detecting a transient |
| 05/24/2012 | WO2012065633A1 Electrical device and method for determining a phase failure in the electrical device |
| 05/24/2012 | US20120130654 Electrical networks and methods of forming the same |
| 05/24/2012 | US20120129069 Terminal device for cell voltage measurement of a fuel cell |
| 05/24/2012 | US20120126792 Structures and methods for rf de-embedding |
| 05/24/2012 | US20120126791 Semiconductor device |
| 05/24/2012 | US20120126790 System and method for providing power to a power meter connected to a power line |
| 05/24/2012 | US20120126785 System and method for circuit overcurrent protection |
| 05/24/2012 | US20120126784 Device for measuring current |
| 05/24/2012 | US20120126782 Low voltage electronic module interface |
| 05/24/2012 | US20120126781 On-chip ir drop detectors for functional and test mode scenarios, circuits, processes and systems |
| 05/24/2012 | US20120126771 Circuitry for detecting a transient |
| 05/24/2012 | DE102011119005A1 Method for determining characteristic quantity of individual cell or battery composite cell, involves charging individual cell or cell assembly with current pulse |
| 05/24/2012 | DE102011118667A1 System und verfahren zum bewerten eines drahtleiters System and method to evaluate a wire conductor |
| 05/24/2012 | DE102011086270A1 Stromsensor Current sensor |
| 05/24/2012 | DE102010061838A1 Mess- und/oder Spannungsumwandlungseinrichtung Measurement and / or voltage conversion device |
| 05/24/2012 | DE102006001874B4 Verfahren und Vorrichtung zur Strom- und Temperaturmessung in einer leistungselektronischen Schaltung Method and apparatus for current and temperature measurement in a power electronic circuit |
| 05/24/2012 | CA2818206A1 Electrical device and method for determining a phase failure in the electrical device |
| 05/23/2012 | EP2455773A1 Detecting circuit for electric quantity, processing device and method for state detection of mobile telephone in standby |
| 05/23/2012 | EP1779083B1 Fluid detection apparatus and kit, and method of installation thereof |
| 05/23/2012 | EP1192474B1 Floating plate voltage monitor |
| 05/23/2012 | CN202231787U Intelligent image pickup system with self-protecting function |
| 05/23/2012 | CN202230480U High-speed signal collecting and data caching system based on field programmable gate array (FPGA) |
| 05/23/2012 | CN202230187U High rate discharging compensation detection circuit for storage battery |
| 05/23/2012 | CN202230186U 电池验电器 Battery electroscope |
| 05/23/2012 | CN202230169U Online earthing monitoring device for iron core and clamping piece of transformer |
| 05/23/2012 | CN202230150U On-line monitoring intelligent terminal for electric power lightning arrester with fiber for power supply |
| 05/23/2012 | CN202230131U Digital AC voltage current combined meter having oscilloscope interface |
| 05/23/2012 | CN202230130U Multi-loop current type detection module |
| 05/23/2012 | CN202230129U Counter with wireless data transmission and for lightning arrester |
| 05/23/2012 | CN202230128U Overcurrent detection and alarm circuit for rechargeable battery |
| 05/23/2012 | CN202230127U Stable and reliable mesohigh electrification indicating circuit |
| 05/23/2012 | CN202230126U Middle-high voltage electrification indicating circuit with good rectification effect |
| 05/23/2012 | CN202230125U High voltage live-line display device capable of increasing flickering intensity |
| 05/23/2012 | CN202230124U High-voltage charged display device capable of displaying charged signal in a double-display way |
| 05/23/2012 | CN202230123U High-voltage charge indicator |
| 05/23/2012 | CN202230122U Device for testing existence of operating voltage of over-220kV alternating current transmission line |
| 05/23/2012 | CN202230121U Differential signal amplitude detection system |
| 05/23/2012 | CN202230120U Clip-on ammeter |
| 05/23/2012 | CN202224810U Data processing system |
| 05/23/2012 | CN102472781A 电流测量装置、电流测量方法及电流测量程序 Current measuring means for measuring a current program method and the current measurement |
| 05/23/2012 | CN102472780A 用于监控电网状态的方法和设备 Method for monitoring the state of the grid and apparatus |
| 05/23/2012 | CN102472779A 混合模式磁通门电流换能器 Mixed mode fluxgate current transducer |
| 05/23/2012 | CN102472778A 用于借助于磁通门传感器确定电池的充电状态的方法和设备 Method and apparatus for determining the aid of flux gate sensor battery state of charge |
| 05/23/2012 | CN102472777A 用于测量电特性的传感器 A sensor for measuring the electrical properties of |
| 05/23/2012 | CN102472774A 具有快速响应的宽动态范围静电计 Wide dynamic range with fast response electrometer |
| 05/23/2012 | CN102468676A 电池电压监视电路 A battery voltage monitoring circuit |
| 05/23/2012 | CN102466785A Acquisition method and acquisition device for voltage difference values among single batteries of power battery pack |
| 05/23/2012 | CN102466781A 高准度电瓶检测装置 High accuracy battery detection device |
| 05/23/2012 | CN102466771A 一种电压暂态事件检测与录波方法 A voltage-transient event detection and recorded wave method |
| 05/23/2012 | CN102466757A 一种高精度电压、电流测试装置 A high precision voltage and current test device |
| 05/23/2012 | CN102466756A 一种差分测量电路的零点误差消除方法及差分测量电路 A differential measurement circuit zero error elimination method and differential measurement circuit |
| 05/23/2012 | CN102466755A 交流电流毫安表 AC current milliammeter |
| 05/23/2012 | CN102466754A 汽车感应器通电检测仪 Automotive sensors powered detector |
| 05/23/2012 | CN102466753A Electroscope |
| 05/23/2012 | CN102466752A 电流变化率表 Current change rate table |
| 05/23/2012 | CN102466751A 一种电流测量装置 A current measuring device |
| 05/23/2012 | CN102466750A 数字万用表的交流测量电路及交流测量方法 AC Digital Multimeter AC measurement methods and measuring circuit |
| 05/23/2012 | CN102466540A 一种燃气设备用有毒气体检测仪 A gas equipment with toxic gas detector |
| 05/23/2012 | CN102463896A 汽车启动电流传感器 Automotive starting current sensor |
| 05/23/2012 | CN102463580A 多功能电工刀 Multifunctional electric knife |
| 05/23/2012 | CN102463534A 测电夹钳 Measuring electrical clamp |
| 05/23/2012 | CN102116689B Device for testing comprehensive mechanical and electrical properties of ionic polymer-metal composite (IPMC) |
| 05/23/2012 | CN101995511B Bus zero-sequence current in-situ processing system for power grid fault line selection |
| 05/23/2012 | CN101975881B Diagnosis and early warning device of faults of mine explosion-proof dry type transformers |
| 05/23/2012 | CN101950212B Multipoint identification method for touch screen |
| 05/23/2012 | CN101893651B Method for detecting positive sequence, negative sequence, idle and harmonic currents of power supply system |
| 05/23/2012 | CN101873075B Collecting circuit for direct current bus |
| 05/23/2012 | CN101819226B 1000kV extra-high voltage alternating-current non-contact multichannel distance measurement type electroscope |
| 05/23/2012 | CN101806828B Full-range measurement method of impulsive discharge current arranged at hot side |
| 05/23/2012 | CN101806822B Structure of high-voltage photoelectric conversion current sensor |