| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 02/13/2013 | CN202735392U Small-current grounding wire-selection apparatus adopting three-phase current transformer |
| 02/13/2013 | CN202735391U Composite current sensor |
| 02/13/2013 | CN202735390U Three-phase zero sequence combined type voltage sensing device |
| 02/13/2013 | CN202735389U Input amount collection device for integrated automatic control system of substation |
| 02/13/2013 | CN202735388U 电流传感器控制装置 Current sensor control means |
| 02/13/2013 | CN202735387U Electric current transformer based on fiber vibration sensor |
| 02/13/2013 | CN102931830A inductance charging time control circuit and method and chip and on-off power source |
| 02/13/2013 | CN102929763A Method and apparatus for monitoring software state through energy consumption of mobile phone |
| 02/13/2013 | CN102929318A Cooking voltage calibration method for microwave oven |
| 02/13/2013 | CN102929184A Voltage detection device for micro control unit |
| 02/13/2013 | CN102928778A Starting comprehensive characteristic testing system of three-phase motor of nuclear power station |
| 02/13/2013 | CN102928706A Alternating current acquisition device and data acquisition method thereof |
| 02/13/2013 | CN102928703A Method and system for measuring short-time flicker |
| 02/13/2013 | CN102928657A Current measurement method and device |
| 02/13/2013 | CN102928656A Full-optical fiber current sensor system |
| 02/13/2013 | CN102928655A Method for detecting power abnormal data |
| 02/13/2013 | CN102928654A input voltage detection device of box-type substation |
| 02/13/2013 | CN102928653A Test pencil |
| 02/13/2013 | CN102928652A Device for monitoring deep dielectric charging potential of spacecraft |
| 02/13/2013 | CN102928651A Triple modular redundancy (TMR) current sensor |
| 02/13/2013 | CN102928650A Hermetically-packaged optical current sensor |
| 02/13/2013 | CN102928649A Current sensor for static synchronous compensator |
| 02/13/2013 | CN102928648A Super capacitor voltage measurement device |
| 02/13/2013 | CN102928647A Optic voltage sensing system and corresponding iterative demodulation method |
| 02/13/2013 | CN102928646A Voltage sensor taking zinc oxide resistor as voltage divider, and application thereof |
| 02/13/2013 | CN102928645A Voltage measurement circuit device applied to 10-kV power distribution network by applying capacitance |
| 02/13/2013 | CN102928644A Method and device for detecting voltage flicker of grid-connected point of wind turbine generator system |
| 02/13/2013 | CN102928643A A current detecting circuit and a current detecting method |
| 02/13/2013 | CN102928642A Current testing system |
| 02/13/2013 | CN102104278B Power supply intelligent system of cell |
| 02/13/2013 | CN102005812B Method and device for judging alternating current power failure |
| 02/13/2013 | CN101949982B Super capacitor detection and control circuit system |
| 02/13/2013 | CN101769999B Optical fiber DC magneto-optic detection system and method |
| 02/12/2013 | US8374810 Method and apparatus for calculating insertion indices for a modular multilevel converter |
| 02/12/2013 | US8374809 Systems for monitoring data from points along voltage transmission lines |
| 02/12/2013 | US8373418 Subsea electronic modules |
| 02/12/2013 | US8373408 High precision algorithmically assisted voltage divider with fault detection |
| 02/12/2013 | US8373407 Intelligent electronic device having improved analog output resolution |
| 02/12/2013 | US8373406 Electrical power quality test circuitry and method |
| 02/07/2013 | US20130035886 Method and arrangement for voltage measurement |
| 02/07/2013 | US20130033267 Optical sensor assembly for installation on a current carrying cable |
| 02/07/2013 | DE102012107084A1 Motorsteuervorrichtung The motor control apparatus |
| 02/07/2013 | DE102011080478A1 Probe head for measuring electromagnetic signals on printed circuit boards, has control line connecting head with measuring device, and light display displaying state of device, where head receives information for state of device |
| 02/07/2013 | DE102011080273A1 Verfahren zur Beurteilung einer Welligkeit eines Signals A method for assessing a ripple of a signal |
| 02/07/2013 | DE102011052449A1 Stromwandler sowie Lasttrenner mit einem solchen Current transformer and switch disconnectors with such |
| 02/06/2013 | EP2555004A1 Supply voltage monitor |
| 02/06/2013 | EP2553541A1 Failsafe oscillator monitor and alarm |
| 02/06/2013 | CN202721614U PCB welding type voltage electric quantity transmitter |
| 02/06/2013 | CN202721011U Magnetic valve type electric reactor provided with wireless monitoring system |
| 02/06/2013 | CN202720321U Voltage detection circuit of high-string number lithium battery pack and battery pack protection circuit applying the same |
| 02/06/2013 | CN202720299U Insulator leakage current on-line monitoring system |
| 02/06/2013 | CN202720283U Power transformer winding fault simulation test system based on vibration signal diagnosis |
| 02/06/2013 | CN202720281U On-line monitoring device for capacitive equipment of transformer substation |
| 02/06/2013 | CN202720279U Wireless digital electric field intensity monitoring sensor |
| 02/06/2013 | CN202720267U A wide-range AD sampling device |
| 02/06/2013 | CN202720266U Switch power supply primary side overcurrent protection circuit |
| 02/06/2013 | CN202720265U Intelligent detection apparatus for industrial heavy current |
| 02/06/2013 | CN202720264U Remote monitoring system for electricity consumption |
| 02/06/2013 | CN202720263U Industrial voltage measurement structure |
| 02/06/2013 | CN202720262U Noise reduction structure of current measurement in alternating current circuit |
| 02/06/2013 | CN202720261U 工业用交流电流检测表 Industrial AC current detection table |
| 02/06/2013 | CN202720260U Intelligent electric power detection meter |
| 02/06/2013 | CN202720259U A PCB voltage measuring tool |
| 02/06/2013 | CN202720258U Transformer neutral point grounding current monitoring device |
| 02/06/2013 | CN202720257U Broadband corona current measuring system used for direct current testing line |
| 02/06/2013 | CN202720256U Electronic circuit for high-precision closed-loop type hall current sensor |
| 02/06/2013 | CN202716200U Multifunctional bolt driver |
| 02/06/2013 | CN102918412A Stacked power supply monitor with sense-replica loop |
| 02/06/2013 | CN102918404A Battery system, electric vehicle, mobile body, electric power storage device, electric power supply device, and battery voltage detection device |
| 02/06/2013 | CN102918403A Voltage measuring apparatus for battery assembly |
| 02/06/2013 | CN102918402A Current measuring apparatus |
| 02/06/2013 | CN102916579A Switch converter circuit and control method thereof |
| 02/06/2013 | CN102916415A Arc fault protective switch with excess voltage protection |
| 02/06/2013 | CN102916388A Supply voltage monitor |
| 02/06/2013 | CN102915068A Current sensor output conditioning circuit |
| 02/06/2013 | CN102914725A Medium-voltage power distribution network fault monitoring device |
| 02/06/2013 | CN102914716A Super capacitor discharging curve collection device |
| 02/06/2013 | CN102914691A Device with adaptive function and method for detecting three-phase alternating current voltage and current |
| 02/06/2013 | CN102914690A High-speed and high-precision data acquisition system with ultralow power consumption |
| 02/06/2013 | CN102914689A Method used for evaluating signal fluctuations |
| 02/06/2013 | CN102914688A Electronic system, device with voltage detecting and warning functions, and voltage detection circuit |
| 02/06/2013 | CN102914687A Method for precisely calculating voltage or current effective value |
| 02/06/2013 | CN102914686A Detecting system of real-tine load current and zero sequence current of three-phase power transmission and distribution line |
| 02/06/2013 | CN102914685A Motor direct torque control type stator current detecting circuit |
| 02/06/2013 | CN102914684A Motor voltage detection circuit under control of DC torque |
| 02/06/2013 | CN102914683A Method for acquiring single-phase grounding current of three-phase single cable |
| 02/06/2013 | CN102914682A 电流传感器装置 Current sensor means |
| 02/06/2013 | CN102914681A 电流传感器装置 Current sensor means |
| 02/06/2013 | CN102914678A Tank-type tri-phase optical voltage transformer |
| 02/06/2013 | CN102914675A Load control unit of wiring and current measurement of dual-layer integrated three-phase kilowatt-hour meter |
| 02/06/2013 | CN102914369A Online infrared imaging device of transformer substation |
| 02/06/2013 | CN102169161B Method for testing capacitive touch chip |
| 02/06/2013 | CN102072988B Access point voltage phase detection method of photovoltaic inverter by applying multiple zero-crossing points |
| 02/06/2013 | CN101930020B Power supply voltage detection circuit with ultra-low power consumption |
| 02/05/2013 | US8368385 Methods and systems to detect voltage changes within integrated circuits |
| 02/05/2013 | US8368381 Method for measuring the movement of an optical pointing device on a work surface |
| 02/05/2013 | US8368380 Devices and methods for electric field sensing |
| 02/05/2013 | US8368379 Apparatus and method for monitoring output within a power strip |
| 01/31/2013 | WO2013016216A1 Systems and apparatus for fault detection in dc power sources using ac residual current detection |
| 01/31/2013 | WO2013016002A1 Current sensor |