| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 05/23/2012 | CN101767739B Air-stream generating device of elevator |
| 05/23/2012 | CN101750162B Method, device and terminal for detection of terminal abnormal heating |
| 05/23/2012 | CN101710150B Interlocking method for carrying out direct electricity check to cable chamber of high voltage switch cabinet |
| 05/23/2012 | CN101667786B System for catching alternating current periodic variation and method thereof |
| 05/23/2012 | CN101617234B Advanced real-time grid monitoring system |
| 05/23/2012 | CN101615497B Integral connecting structure of transformer and current sensor |
| 05/23/2012 | CN101593965B Intelligent low-voltage motor protector with function of electric energy measurement |
| 05/23/2012 | CN101587675B Method of collecting and measuring impulse current of field electron emission display modulation |
| 05/23/2012 | CN101567682B Integrated circuit and method of configuring integrated circuit |
| 05/23/2012 | CN101561456B Direct current side high-voltage detecting method of compressor driver |
| 05/23/2012 | CN101401003B Device and method for measuring a first voltage and a second voltage by means of a differential voltmeter |
| 05/23/2012 | CN101387679B Method for weighting dynamic voltage stability margin index |
| 05/22/2012 | US8184139 Redundance control of temperature compensation for a LED printhead |
| 05/22/2012 | US8183888 Parity unit using 3-input NANDs |
| 05/22/2012 | US8183851 Detector for calculating a depth of a buried conductor |
| 05/18/2012 | WO2012064810A2 Hall effect device and biasing method |
| 05/18/2012 | WO2012062789A1 Current measurement for an electric heater |
| 05/18/2012 | WO2012062142A1 Method and apparatus for collecting voltage differential parameters of individual battery cells in battery pack |
| 05/18/2012 | WO2012062061A1 Method and device for detecting voltage of terminal battery |
| 05/17/2012 | US20120123713 Control of Delivery of Current Through One or More Discharge Lamps |
| 05/17/2012 | US20120119788 On-chip Power Supply Monitoring Using a Network of Modulators |
| 05/17/2012 | US20120119725 Device and method for surface |
| 05/17/2012 | US20120119696 Devices And Methods For Detecting USB Devices Attached To A USB Charging Port |
| 05/16/2012 | CN202221698U Multi-functional digital photoelectric mutual inductor combining device |
| 05/16/2012 | CN202221471U Ripple detection circuit used for power supply of earthquake data processing work station |
| 05/16/2012 | CN202221446U Single-voltage three-current combined digital display instrument |
| 05/16/2012 | CN202221445U General battery pack low-voltage alarm circuit |
| 05/16/2012 | CN202221444U Device for detecting extra-high pulse voltage |
| 05/16/2012 | CN202221443U Extra-high voltage DC corona current sampling resistor sensor |
| 05/16/2012 | CN202221435U Adjustable connection board used for lightning arrester counter |
| 05/16/2012 | CN102460928A 开关模式电源中的电流测量 Switch-mode power supply current measurement |
| 05/16/2012 | CN102460188A Apparatus and methods thereof for power consumption measurement at circuit breaker points |
| 05/16/2012 | CN102457187A 电流检测装置及其方法与电流检测信号比较装置及其方法 Current detecting device and method for comparing the current detection signal apparatus and method |
| 05/16/2012 | CN102457040A 一种配电线路过负荷监控方法及装置 An electrical distribution line overload monitoring method and apparatus |
| 05/16/2012 | CN102455769A 电源装置 Power supply unit |
| 05/16/2012 | CN102455415A 电压测试装置及系统 Voltage test equipment and systems |
| 05/16/2012 | CN102455403A 一种led芯片检测装置 One kind of led chip detection device |
| 05/16/2012 | CN102455382A Current detection circuit for a power semiconductor device |
| 05/16/2012 | CN102455381A Current detecting circuit and current overcurrent protection controller |
| 05/16/2012 | CN102455380A 接地线自动感应电语音报警装置 Auto-sensing power ground wire voice alarm system |
| 05/16/2012 | CN102455379A 高压验电器与绝缘操作杆的连接接头 High voltage connectors and insulated operating rod electroscope |
| 05/16/2012 | CN102455378A 汽车发电机用霍尔电流传感器 Automotive generators current sensor |
| 05/16/2012 | CN102455377A 微机电系统的电流感测装置 Current sensing MEMS devices |
| 05/16/2012 | CN102455376A Method for measuring voltage by using software and hardware integrals |
| 05/16/2012 | CN102455375A 自动化扫描振荡电极技术 Automated scanning oscillating electrode technology |
| 05/16/2012 | CN102455273A Method for measuring atomic oxygen flux density |
| 05/16/2012 | CN102455191A Optical fiber sensing device based on optical fiber bending deformation |
| 05/16/2012 | CN101620246B Precise detection method of spark in electric precipitation |
| 05/15/2012 | US8179143 Apparatus for testing printed circuit and method therefor |
| 05/10/2012 | WO2012059169A1 Method, circuit arrangement and monitoring device for signal testing |
| 05/10/2012 | WO2012059061A1 Method and device for quality-monitoring of high-voltage electrical energy |
| 05/10/2012 | WO2012027147A3 Active and passive monitoring system for installed photovoltaic strings, substrings, and modules |
| 05/10/2012 | WO2011050975A8 Threshold crossing detection |
| 05/10/2012 | US20120116698 Variable sensing using frequency domain |
| 05/10/2012 | US20120112775 Detection of the Conduction State of an RC-IGBT |
| 05/10/2012 | US20120112770 Signal Processing |
| 05/10/2012 | US20120112735 Electronic Apparatus and Method of Calculating Input Power Value of Power Supply Unit in Electronic Apparatus |
| 05/10/2012 | US20120112727 Electric current measuring device, electric current measuring method, and electric current measuring program |
| 05/09/2012 | EP2450718A2 Sample and hold circuit for voltage measuring |
| 05/09/2012 | EP2449387A1 Method and device for monitoring the state of a network |
| 05/09/2012 | CN202217044U Power source anomaly alarming circuit for power source of seismic data processing workstation |
| 05/09/2012 | CN202217012U Microcurrent detection module |
| 05/09/2012 | CN202217011U Constant current test apparatus for voltage stabilization value of voltage stabilizer tube |
| 05/09/2012 | CN202217010U Online monitoring device of grounding current of transformer iron core |
| 05/09/2012 | CN202217009U 电力交流信号检测电路 AC power signal detection circuit |
| 05/09/2012 | CN202217008U Device for accurately measuring current and voltage of electric appliance |
| 05/09/2012 | CN202217007U Hall current sensor |
| 05/09/2012 | CN202217006U Electric energy metering device for submersible pump well |
| 05/09/2012 | CN102449908A Short-circuit protection for switched output stages |
| 05/09/2012 | CN102449491A Polymer optical waveguide current sensor |
| 05/09/2012 | CN102447385A Power supply apparatus |
| 05/09/2012 | CN102447223A Operating rod |
| 05/09/2012 | CN102446475A Pixel electrode voltage detecting circuit of flat panel display equipment |
| 05/09/2012 | CN102445639A Split conductor ion flow space distribution measuring method and device |
| 05/09/2012 | CN102445629A Capacitance type differential sensor module and inspection apparatus of display panel used thereof |
| 05/09/2012 | CN102445594A AD sampling method in microgrid control system |
| 05/09/2012 | CN102445593A Splash electric tower indicator based on inductive energy accumulation |
| 05/09/2012 | CN102445592A Vacuum switch and cable connection electricity testing device |
| 05/09/2012 | CN102445591A Electric test pen capable of judging alternating current and direct current |
| 05/09/2012 | CN102445590A Current detection circuit used for judging state of an antenna |
| 05/09/2012 | CN102445589A Relay protection direct voltage sensing circuit |
| 05/09/2012 | CN102445588A Short-time slowly-varying high-current measuring device based on (printed circuit board) PCB type Rogowski coil |
| 05/09/2012 | CN102445587A Current sampling circuit and current range judging device thereof |
| 05/09/2012 | CN102445586A Optical fiber sensor and method for monitoring stray currents of subway |
| 05/09/2012 | CN102445585A Measuring device for pulse traveling wave tube slow wave current and use method thereof |
| 05/09/2012 | CN102445584A System and method for testing working voltage of electronic tag |
| 05/09/2012 | CN102445583A Detection method for voltage signals of power energy quality monitoring device and circuit as well as application thereof |
| 05/09/2012 | CN102445582A Primary current sensor structure suitable for high-voltage direct current measurement |
| 05/09/2012 | CN102445581A Capacitive voltage-division type self-calibration optical voltage transducer |
| 05/09/2012 | CN102032880B AC (alternating current) magneto-optical modulation wide angle detection device and method |
| 05/09/2012 | CN101871981B Automatic detection and regulation method and circuit for air conditioner |
| 05/09/2012 | CN101846719B Transformer insulation state on-line monitoring device |
| 05/09/2012 | CN101692361B Resistance device for sensing current |
| 05/09/2012 | CN101566643B Structure of film thermoelectric converter based on bi-material microcantilevel and fabricating method thereof |
| 05/09/2012 | CN101539605B Electronic measurement method based on IP core and electronic measurement instrument |
| 05/08/2012 | US8174252 Methods and systems for transmitting and receiving data from points along voltage transmission lines |
| 05/03/2012 | WO2012055357A1 Isolated voltage sensor and isolated voltage sensor using mtj device |
| 05/03/2012 | US20120105051 Accessory Presence Detection |
| 05/03/2012 | US20120105050 Method and system for varying sampling frequency to avoid software harmonics when sampling digital power indicators |
| 05/03/2012 | DE102011117383A1 Verfahren und Systeme zum Messen von E/A-Signalen Methods and systems for measuring E / O signals |