| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 06/30/2011 | WO2011079190A1 Dynamic load estimation of multiple branch circuits |
| 06/30/2011 | WO2010112976A3 Connection quality verification for integrated circuit test |
| 06/30/2011 | US20110161026 System and method for measuring pin voltages of electronic components |
| 06/30/2011 | US20110156692 Power injector detection |
| 06/30/2011 | DE102009055331A1 Vorrichtung und Verfahren zur Erkennung einer Verpolung auf einer Niedervoltseite eines Gleichspannungswandlers in einem Zweispannungsbordnetz Apparatus and method for detecting a reverse polarity on a low-voltage side of a DC-DC converter in a two-voltage electrical system |
| 06/30/2011 | CA2782141A1 Dynamic load estimation of multiple branch circuits |
| 06/29/2011 | EP2339763A1 Current detector |
| 06/29/2011 | EP2338226A1 Low-voltage self-calibrated cmos peak detector |
| 06/29/2011 | CN201887697U Solar header box |
| 06/29/2011 | CN201887659U Test current regulating device |
| 06/29/2011 | CN201887426U Intelligent pure residual current protection device |
| 06/29/2011 | CN201886593U Electric shock prevention voice alarm safety helmet |
| 06/29/2011 | CN201886586U Electrical fire monitor protector |
| 06/29/2011 | CN201886372U Band-gap reference voltage detection circuit |
| 06/29/2011 | CN201886138U Charging detection combination |
| 06/29/2011 | CN201886120U Dynamic tester with function of isolating test signals and power supplies |
| 06/29/2011 | CN201886114U Leakage current monitoring terminal of transformer substation insulator |
| 06/29/2011 | CN201886112U Automatic wave-recording device of short current in DC amplitude voltage electric grid of ship |
| 06/29/2011 | CN201886106U 直流漏电流测量装置 DC leakage current measurement device |
| 06/29/2011 | CN201886098U Insulation aging testing device for lightning arrestor |
| 06/29/2011 | CN201886076U Overload protection detecting device |
| 06/29/2011 | CN201886075U Current signal collection module |
| 06/29/2011 | CN201886074U Two-channel electronic voltage recorder |
| 06/29/2011 | CN201886073U Loss-of-voltage timer with short message notification function |
| 06/29/2011 | CN201886072U Portable electroscope |
| 06/29/2011 | CN201886071U Voltage type charged display device |
| 06/29/2011 | CN201886070U Test pencil with tape |
| 06/29/2011 | CN201886069U Isopotential high-pressure electrified display device |
| 06/29/2011 | CN201886068U Current detecting circuit |
| 06/29/2011 | CN201886067U Online voltage harmonic monitoring system for wind farms |
| 06/29/2011 | CN201886066U Transformer core grounding current monitor |
| 06/29/2011 | CN201886065U Power frequency discharge voltage testing device of zinc oxide arrester |
| 06/29/2011 | CN201886064U Battery management system and battery pack current sampling circuit in controller thereof |
| 06/29/2011 | CN201886063U Battery management system and single battery voltage sampling circuit in controller of battery management system |
| 06/29/2011 | CN201886062U Monitoring device for serial communication signal level amplitude values |
| 06/29/2011 | CN201886061U High-voltage current measurement device |
| 06/29/2011 | CN201886060U Controllable electronic load |
| 06/29/2011 | CN201886059U Positive-negative voltage measuring device |
| 06/29/2011 | CN201886058U Photoelectric measurement device for high-voltage direct current (DC) transmission converter valve |
| 06/29/2011 | CN201884062U Mine intrinsic safety type automatic dewatering and measurement and control protective device |
| 06/29/2011 | CN201883793U Status lock with electricity testing function |
| 06/29/2011 | CN201882119U Electricity detection vehicle |
| 06/29/2011 | CN102112888A Tracker circuit and method for automated test equipment systems |
| 06/29/2011 | CN102112886A Voltammetric device having sample degassing system |
| 06/29/2011 | CN102111014A Comprehensive monitoring system of distributed power transmission lines |
| 06/29/2011 | CN102110518A Automatic measurement range switching device of electronic current transformer |
| 06/29/2011 | CN102110409A Organic light emitting display device and driving method thereof |
| 06/29/2011 | CN102109579A Signal monitoring system for controlling electric light source and signal monitoring method |
| 06/29/2011 | CN102109578A System for monitoring photovoltaic battery pack string |
| 06/29/2011 | CN102109550A Overvoltage and excess temperature detection circuit |
| 06/29/2011 | CN102109549A Device for detecting solar energy charging current |
| 06/29/2011 | CN102109548A Current detection circuit with current compensation and temperature compensation |
| 06/29/2011 | CN102109547A Scanning probe system on high field side of Tokamak device |
| 06/29/2011 | CN102109546A Heavy-current sampling resistor |
| 06/29/2011 | CN102109545A Current-voltage electrode |
| 06/29/2011 | CN102109544A Voltage sampling device and using method thereof |
| 06/29/2011 | CN102109477A Testing device for distinguishing secondary electrons and back scattered electrons of material |
| 06/29/2011 | CN101696990B Method for testing electricity of ultrahigh-voltage transmission line based on electric field measurement and system thereof |
| 06/29/2011 | CN101666842B Common-ground warning indicator |
| 06/29/2011 | CN101533059B Device for detecting abnormity of zero line and ground wire of leakage protection device |
| 06/29/2011 | CN101438174B Input by-pass circuit for a current probe |
| 06/29/2011 | CN101055298B Temperature detection function-incorporating current sensor |
| 06/28/2011 | US7969295 Device, system and method for the location and identification of as-built plants of pipes, conduits, cables or hidden objects |
| 06/28/2011 | US7969156 Method and apparatus for monitoring a load |
| 06/28/2011 | US7969138 Method for calibrating a motor control circuit to improve temperature measurement in a electrical motor |
| 06/28/2011 | US7969137 System for and method of detecting a buried conductor |
| 06/28/2011 | CA2492735C Electrical circuit tracing and identifying apparatus and method |
| 06/23/2011 | US20110153244 Individualized self-monitoring system for transformers in power measurement installations and method of self-monitoring and diagnosis of transformers in power measurement installations |
| 06/23/2011 | US20110153243 Elastive sensing |
| 06/23/2011 | US20110153242 Thermocouple measurement in a current carrying path |
| 06/23/2011 | US20110152962 Cable Detection System |
| 06/23/2011 | US20110148455 Method for measuring current, method for inspecting semiconductor device, semiconductor device, and test element group |
| 06/23/2011 | US20110148395 Over-voltage and over-temperature detecting circuit |
| 06/23/2011 | US20110148393 System and device for measuring voltage in a conductor |
| 06/23/2011 | US20110148392 Mechanical support device and a measuring device with a mechanical support device |
| 06/22/2011 | EP2336794A2 Apparatus and method for sensing a current leakage of a battery, and battery driving apparatus and battery pack including the apparatus |
| 06/22/2011 | EP2335082A1 Method and apparatus for dynamic signal switching of a merging unit in an electrical power system |
| 06/22/2011 | DE102010054832A1 Verfahren zur berührungslosen Weltbereichs-Strommessung mit angepasster Auflösung Method for contactless world-range current measurement with custom resolution |
| 06/22/2011 | DE102009054943A1 Stromsensor mit Selbsttestfunktion Current sensor with self-test function |
| 06/22/2011 | DE102009054715A1 Circuit arrangement for actuating electric motor utilized for driving fan to cool internal combustion engine of motor vehicle, has lines running between controller and contact, and voltage measuring device arranged in circuit for resistor |
| 06/22/2011 | DE102008019274B4 Vorrichtung zur Überwachung elektrischer Versorgungsleitungen Apparatus for monitoring of electrical supply lines |
| 06/22/2011 | CN201878019U Transducer |
| 06/22/2011 | CN201877999U Current sampling circuit of frequency converter |
| 06/22/2011 | CN201876537U Detector for online arrester monitoring device |
| 06/22/2011 | CN201876490U Measuring device of quiescent current of infrared remote controller |
| 06/22/2011 | CN201876489U Voice voltmeter |
| 06/22/2011 | CN201876488U Clip-on ammeter with waterproof shell |
| 06/22/2011 | CN201876487U Optical current measuring sensor |
| 06/22/2011 | CN201876485U Electronic transformer based on intelligent conditioning unit |
| 06/22/2011 | CN1924591B Characteristic evaluating device and characteristic evaluating method |
| 06/22/2011 | CN102105808A Cell diagnostic system and method |
| 06/22/2011 | CN102105802A Transformer meter and system for using same |
| 06/22/2011 | CN102105011A Monitoring method and monitoring center for energy-saving terminal of street lamp |
| 06/22/2011 | CN102104278A Power supply intelligent system of cell |
| 06/22/2011 | CN102104276A Adaptive dual-controller power supply used for vehicle |
| 06/22/2011 | CN102103981A Method and device for monitoring wafer transmission accuracy and bench using device |
| 06/22/2011 | CN102103174A Industrial ageing monitoring system |
| 06/22/2011 | CN102103165A Electricity meter |
| 06/22/2011 | CN102103163A Method for measuring arbitrary waveform estimated based on synchronous lock phase and half-wave |
| 06/22/2011 | CN102103162A System for remotely monitoring leakage current of lightning arrester on line |