| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 09/03/2013 | US8525554 High-side signal sensing circuit |
| 09/03/2013 | US8525508 Method for calibrating a motor control circuit to improve temperature measurement in an electrical motor |
| 08/29/2013 | WO2013126611A1 A circuit for detecting a voltage change using a time-to-digital converter |
| 08/29/2013 | US20130226487 Method, device and terminal for identifying lcd screen |
| 08/29/2013 | US20130223461 System and method for generating an optimum side-mode suppression ratio continuous tuning path for a semiconductor tunable laser |
| 08/29/2013 | US20130222962 Circuit board meter for circuit breakers |
| 08/29/2013 | US20130221998 Current sensor |
| 08/29/2013 | US20130221959 Electrical current sensor and method of manufacturing the same |
| 08/29/2013 | US20130221948 Functional measuring group for a medium-voltage distribution substation |
| 08/29/2013 | US20130221947 Battery Wake-Up |
| 08/29/2013 | US20130221894 Method and circuit arrangement for detecting motor load without sensors and for controlling motor current according to load for a stepper motor |
| 08/29/2013 | DE102012203017A1 System for managing high voltage battery system mounted in vehicle, has control device to monitor voltages to individual battery cells of battery modules, and monitoring device to monitor electrical connection between battery modules |
| 08/29/2013 | DE102012202826A1 Stromsensor zur Befestigung an einer Stromschiene Current sensor for fixing to a conductor rail |
| 08/29/2013 | DE102012003978A1 Verfahren und Vorrichtung zur Messung von Strömen oder Magnetfeldern mit Hall-Sensoren Method and apparatus for measuring currents or magnetic fields with Hall sensors |
| 08/28/2013 | EP2630725A1 Device and method for function detection in a feed configuration |
| 08/28/2013 | EP2630448A2 Disaggregation apparatus |
| 08/28/2013 | DE202012012649U1 Vorrichtung zur Messung eines Wechselstroms Device for measuring an alternating current |
| 08/28/2013 | CN203166510U Direct current distribution system |
| 08/28/2013 | CN203164352U An electric leakage detecting device of a live low-voltage line |
| 08/28/2013 | CN203164287U Magnetic induction type grid cycle drift and current sensing monitoring device |
| 08/28/2013 | CN203164284U Current electricity taking digital electric power meter |
| 08/28/2013 | CN203164283U Voltage quality monitoring analyzer with overcurrent protective device |
| 08/28/2013 | CN203164282U Leakage current tester capable of being simultaneously applicable to medical and civil standard |
| 08/28/2013 | CN203164281U Circuit for accurately measuring voltage of each single battery in battery pack comprising any number of batteries connected in series |
| 08/28/2013 | CN203164280U Voltage quality monitoring terminal |
| 08/28/2013 | CN203164279U Commercial power zero-crossing signal detection circuit |
| 08/28/2013 | CN203164278U Transformer substation switch chamber high-voltage equipment grounding step voltage detecting device |
| 08/28/2013 | CN203164277U Overcurrent and overvoltage protection detection circuit |
| 08/28/2013 | CN203164276U Voltage indication type electroscope |
| 08/28/2013 | CN203164275U Protection plate which monitors protection state |
| 08/28/2013 | CN203164274U Test pencil |
| 08/28/2013 | CN203164273U Non-contact high-voltage electroscope |
| 08/28/2013 | CN203164272U Low voltage electroscope possessing light reflection function |
| 08/28/2013 | CN203164271U Installation structure for installing Rogowski coil sensor on the top of lightning rod |
| 08/28/2013 | CN203164270U Offshore oil platform cathode protection initial polarization data detecting instrument |
| 08/28/2013 | CN203164269U Portable voltage sag testing tool |
| 08/28/2013 | CN203164268U Circuit structure for measuring induction voltage of human body |
| 08/28/2013 | CN203164267U Large-scale grounding grid metal framework shunt vector measuring system based on wireless transmission |
| 08/28/2013 | CN203164266U Power source voltage measuring device, temperature detection device equipped with power source voltage measuring device, and temperature controller |
| 08/28/2013 | CN203164265U Double-channel sampling circuit |
| 08/28/2013 | CN203164264U Photovoltaic conflux monitoring unit |
| 08/28/2013 | CN203164263U Frequency modulation radio transmitter detection instrument |
| 08/28/2013 | CN203164262U Current signal acquisition device |
| 08/28/2013 | CN203164261U Piezoelectric driving fiber Bragg grating current sensor based on LPCT |
| 08/28/2013 | CN203164260U Piezoelectric driving fiber Bragg grating current sensor based on Rogowski coil |
| 08/28/2013 | CN203164259U Shell voltage and resistance testing mechanism |
| 08/28/2013 | CN203164258U High-voltage direct current wide frequency domain corona current measuring system |
| 08/28/2013 | CN203164255U Pockels effect-based optical voltage sensor |
| 08/28/2013 | CN203157478U Multifunctional test pen |
| 08/28/2013 | CN103269056A Current detection protection device and method |
| 08/28/2013 | CN103269024A Multifunctional insulating operation bar of transformer substation |
| 08/28/2013 | CN103267895A Method for detecting harmonic current of power grid current |
| 08/28/2013 | CN103267891A Lossless current detecting circuit based on digital correction |
| 08/28/2013 | CN103267890A Multichannel comprehensive thunder and lightning monitor |
| 08/28/2013 | CN103267889A Novel intelligent photovoltaic confluence device |
| 08/28/2013 | CN103267888A Multifunctional secondary voltage and current comprehensive measurement and analysis device |
| 08/28/2013 | CN103267887A Alternating current electricity testing indicator |
| 08/28/2013 | CN103267886A Method and system for obtaining a medium voltage circuit full path electric current in power distribution network automation system |
| 08/28/2013 | CN103267885A Anti-electromagnetic-interference pincers-shaped ampere meter device |
| 08/28/2013 | CN103267884A Leakage current detection device for bipolar square-wave pulse voltage insulation life test |
| 08/28/2013 | CN103267883A Leakage current detection method for bipolar square-wave impulse voltage insulation life experiment |
| 08/28/2013 | CN102495274B Current acquisition circuit for electric automobile power batteries |
| 08/28/2013 | CN102419392B Device for digitally detecting amplitude of oscillating circuit |
| 08/28/2013 | CN102401852B Sampling resistor sensor for extra-high-voltage corona current |
| 08/28/2013 | CN102394612B Reset circuit based on low-voltage detection function |
| 08/28/2013 | CN102393482B Grid-connected inverter and circuit for detecting island thereof |
| 08/28/2013 | CN102313837B Photovoltaic convergence detecting device |
| 08/28/2013 | CN102105802B Transformer meter and system for using same |
| 08/28/2013 | CN102037368B Opto-isolator multi-voltage detection circuit |
| 08/28/2013 | CN101900752B Grounded high-voltage power system insulation online detector |
| 08/28/2013 | CN101782605B Digital diaphragm-vibrating type current sensor |
| 08/28/2013 | CN101750533B Membrane-vibration type high-voltage sensor |
| 08/28/2013 | CN101625380B Sensor for high voltage environment |
| 08/28/2013 | CA2804691A1 Functional measurement block for medium voltage distribution station |
| 08/27/2013 | US8521458 Apparatus and method for detecting charged state of electric storage device |
| 08/27/2013 | US8521457 User designated measurement display system and method for NDT/NDI with high rate input data |
| 08/27/2013 | US8519698 Presettable transducer for electrical quantities |
| 08/27/2013 | US8519697 Apparatus and method for detecting mode change in an electronic device |
| 08/27/2013 | US8519696 Integrated circuits with frequency generating circuits |
| 08/22/2013 | US20130218493 Diagnostics for a programmable logic controller |
| 08/22/2013 | US20130215163 Ac voltage detection circuit, heater control device and image forming device |
| 08/22/2013 | DE102013002989A1 Batteriepacküberwachungsvorrichtung Battery pack monitoring device |
| 08/22/2013 | DE102012209019B3 Device for detection and notification of errors in current- and voltage curve of high- or medium-voltage line of electrical energy supply network, has detection part for measuring current and voltage of high-or medium-voltage line |
| 08/22/2013 | DE102012204569B3 Vorrichtung und Verfahren zum Messen des Wertes eines Widerstands Apparatus and method for measuring the value of a resistor |
| 08/22/2013 | DE102012108221A1 Verfahren zur Akkumulatorzellenladung und zum Ladungsausgleich und dazugehörige Vorrichtung Method for Akkumulatorzellenladung and for charge compensation and associated apparatus |
| 08/22/2013 | DE102010055225B4 Motoransteuereinrichtung mit Spannungsausfall-Detektionsfunktion Motor driver with power failure detection function |
| 08/22/2013 | DE102008004804B4 Verfahren zum Erkennen eines Fehlers in einer Durchführung eines Spannungsanschlusses eines mehrphasigen elektrischen Transformators A method of detecting an error in the implementation of a voltage of a terminal of a multi-phase electric transformer |
| 08/22/2013 | DE102007008097B4 Lastabnormitäts-Detektionssystem und -verfahren Lastabnormitäts detection system and method |
| 08/21/2013 | EP2629105A2 Method for performing a tri-state comparison of two input signals and window comparator circuit |
| 08/21/2013 | EP2629104A1 Voltage monitoring device of plural assembly battery |
| 08/21/2013 | EP2629103A1 Voltage measurement device for plurality of assembled batteries |
| 08/21/2013 | EP2627974A1 Method, circuit arrangement and monitoring device for signal testing |
| 08/21/2013 | CN203151002U Insulating operation rod capable of measuring load current |
| 08/21/2013 | CN203149146U Fiber quarter-wave plate array device |
| 08/21/2013 | CN203149066U Distributed on-line insulation monitoring device for electrical network operation equipment |
| 08/21/2013 | CN203149062U Comprehensive testing instrument used for multipath lead wire/connector test |
| 08/21/2013 | CN203149053U Power quality monitoring system based on SOPC |
| 08/21/2013 | CN203149030U Novel intelligent power distribution instrument |
| 08/21/2013 | CN203149029U Overvoltage data acquisition storage system |
| 08/21/2013 | CN203149028U Adaptive harmonic current detection system |