| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 12/25/2013 | CN103477234A Current sensor |
| 12/25/2013 | CN103475224A Digital compensator for power supply applications |
| 12/25/2013 | CN103475019A Solar-energy power generation system, measurement module and positioning method |
| 12/25/2013 | CN103474974A Distribution network single-phase ground protection method based on zero-sequence current sudden change straight line fitting direction |
| 12/25/2013 | CN103472351A Method and device for monitoring distribution network circuit abnormalities |
| 12/25/2013 | CN103472345A Aging detection circuit of grounding wire of electric equipment |
| 12/25/2013 | CN103472296A Voltage envelope extraction method based on time-frequency transforming and implementing device |
| 12/25/2013 | CN103472295A Residual voltage signal collecting and processing method and system |
| 12/25/2013 | CN103472294A Analog quantity input measuring method not needing calibration |
| 12/25/2013 | CN103472293A Device for detecting whether alternating currents flow into direct-current system or not |
| 12/25/2013 | CN103472292A Electrical equipment load terminal voltage monitoring and collecting technology |
| 12/25/2013 | CN103472291A Data acquiring system of high-speed high-precision high-isolation voltage |
| 12/25/2013 | CN103472290A Device for automatically acquiring current parameters of X-ray generator |
| 12/25/2013 | CN103472289A Current alarm device for flexible facing brick production line motor |
| 12/25/2013 | CN103472288A Peak voltage detection circuit |
| 12/25/2013 | CN103472287A Static electricity detecting device for static electricity damping performance testing |
| 12/25/2013 | CN103472286A Electrical appliance abnormal voltage monitoring system |
| 12/25/2013 | CN103472285A Electrical appliance abnormal current detector |
| 12/25/2013 | CN103472284A Electrical appliance abnormal voltage detector |
| 12/25/2013 | CN103472283A Voltage detection method and circuit and switching power supply with voltage detection circuit |
| 12/25/2013 | CN103472282A Improved FBD harmonic current detection method based on adaptive principle |
| 12/25/2013 | CN103472281A Clamp-type current meter safe to use |
| 12/25/2013 | CN103472280A Voltage detection circuit |
| 12/25/2013 | CN103472277A Voltmeter circuit |
| 12/25/2013 | CN102621457B On-line detection method of metal oxide arrester insulating property influencing factor |
| 12/25/2013 | CN102621374B Power terminal electrification display |
| 12/25/2013 | CN102539873B Coil of optical fiber current sensor and optical fiber current sensor |
| 12/25/2013 | CN102419408B System and method for determining single-phase disconnection fault sections based on load monitors |
| 12/25/2013 | CN102209905B Apparatus and method for synchronizing and measuring current and voltage of secondary battery pack |
| 12/25/2013 | CN102156212B Method and device for measuring heavy current of magnetic coupled fiber grating |
| 12/25/2013 | CN101937038B Intelligent multi-core cable harness detection device |
| 12/24/2013 | US8614583 Voltage detection circuit |
| 12/24/2013 | US8614571 Apparatus and method for on-chip sampling of dynamic IR voltage drop |
| 12/24/2013 | DE19720182B4 Verfahren und Einrichtung zum Beseitigen von Fehlern aufgrund von abklingenden Verschiebungen aus gemessenen Leistungssystemfehlern Method and apparatus for eliminating errors due to decaying shifts from measured power system faults |
| 12/24/2013 | DE102013106376A1 Massefreier Vorspannungsgenerator Free mass bias |
| 12/24/2013 | DE102012210620A1 Verfahren zum Überwachen einer Trenneinrichtung, insbesondere eines Servicesteckers oder einer Servicesteckbuchse, in einem Batteriesystem, sowie entsprechendes Überwachungsgerät A method for monitoring a separating device, in particular a service connector or a service plug socket, in a battery system, as well as appropriate monitoring device |
| 12/20/2013 | DE202012103577U1 Vorrichtung zur Ermittlung eines elektrischen Gleichstroms in einem elektrischen Leiter Device for determining a direct electric current in an electrical conductor |
| 12/19/2013 | WO2013188732A1 Systems and methods for precision optical imaging of electrical currents and temperature in integrated circuits |
| 12/19/2013 | WO2013188155A1 Electronic device power protection circuitry |
| 12/19/2013 | WO2013187908A1 Early power failure detection circuit |
| 12/19/2013 | WO2013186420A1 Rogowski coil and method for measuring current flowing through a conductor |
| 12/19/2013 | US20130338951 Electronic system with embedded sensors, method for estimating an operating physical quantity, and corresponding computer program |
| 12/19/2013 | US20130337756 Method and Apparatus for Controlling NFC Tag Power Dissipation |
| 12/19/2013 | US20130335106 Resistive voltage divider made of a resistive film material on an insulating substrate |
| 12/19/2013 | US20130335076 Current sensor |
| 12/19/2013 | US20130335060 Molecule sensing and identification |
| 12/19/2013 | DE102013009587A1 Measuring device for detecting saturation of magnetic core of transformer in direct current static converter, has measuring coil detecting induced voltage, arranged at measuring bridge and formed as winding distributed over bridge length |
| 12/18/2013 | EP2675036A2 Charger external power device gain sampling |
| 12/18/2013 | EP2674767A2 System and method for controlled overvoltage detection |
| 12/18/2013 | EP2674766A1 Method and device for current measurement sensitive to all types of current |
| 12/18/2013 | EP2673649A1 Power measurement device |
| 12/18/2013 | EP2673648A2 Hysteretic current mode controller for a bidirectional converter with lossless inductor current sensing |
| 12/18/2013 | CN203352426U Alternating voltage peak value sampling circuit and switch converter applying same |
| 12/18/2013 | CN203352143U Electrical machine precision current protection and control system |
| 12/18/2013 | CN203351328U Current magnetic field sensing device |
| 12/18/2013 | CN203350420U Battery voltage monitoring circuit for battery powered equipment |
| 12/18/2013 | CN203350394U Cable fault locating and temperature load on-line monitoring system |
| 12/18/2013 | CN203350354U Digital display combination meter |
| 12/18/2013 | CN203350353U Digital current recorder for oil pumping unit |
| 12/18/2013 | CN203350352U On-site data acquisition apparatus of energy management system |
| 12/18/2013 | CN203350351U Electric permanent magnetic sucking disc controller |
| 12/18/2013 | CN203350350U Sampling system of wind power generation power grid |
| 12/18/2013 | CN203350349U Transformer substation bus phase voltage off-limit alarm system |
| 12/18/2013 | CN203350348U Electrification detection device for ground wire, air-conditioner and electrical equipment |
| 12/18/2013 | CN203350347U Three-phase electrification indicator of switch cabinet |
| 12/18/2013 | CN203350346U Potential indicator with temperature measuring function |
| 12/18/2013 | CN203350345U Grounding-type low-voltage electroprobe |
| 12/18/2013 | CN203350344U Electric shock resistant safety test pencil |
| 12/18/2013 | CN203350343U Potential indicator protector of cable branch box |
| 12/18/2013 | CN203350342U Transformer charged detector |
| 12/18/2013 | CN203350341U Current active acquisition device based on bioelectrochemistry system |
| 12/18/2013 | CN203350340U Full-range low power consumption DC voltage detecting circuit |
| 12/18/2013 | CN203350339U HV voltage sampling circuit for electrically-driven controller of electric vehicle |
| 12/18/2013 | CN203350338U Cell phone PCB plate voltage testing jig |
| 12/18/2013 | CN203350337U Current sensor |
| 12/18/2013 | CN203350336U Multi-function voltage frequency table |
| 12/18/2013 | CN203350335U Double Hall element current sensor |
| 12/18/2013 | CN203350334U Voltage quality monitoring device based on 3G network |
| 12/18/2013 | CN203350333U DC (direct current) system alternating current fault detection apparatus |
| 12/18/2013 | CN203350332U Current sample-and-hold circuit |
| 12/18/2013 | CN203350331U Residual current test clamp for rural power grid lines |
| 12/18/2013 | CN203350330U Average voltage detection device of electric locomotive rectification cabinet |
| 12/18/2013 | CN203350329U Online monitoring device of lighting current state of lighting arrester |
| 12/18/2013 | CN203350328U Apparatus for measuring voltage of rescue battery |
| 12/18/2013 | CN203350308U Switch cabinet detection device |
| 12/18/2013 | CN103460063A Battery voltage measurement |
| 12/18/2013 | CN103460059A Power measurement device |
| 12/18/2013 | CN103460058A Method for contactless determination of electrical potential of object using two different values for electric flux, and device |
| 12/18/2013 | CN103460057A Method for the contactless determination of an electrical potential using an oscillating electrode, and device |
| 12/18/2013 | CN103457247A Multi-level full-range selective coordination and protection technology of low-voltage system |
| 12/18/2013 | CN103454597A Current-induction measuring device and method and sensitivity adjusting method |
| 12/18/2013 | CN103454558A Method and device for detecting voltage fluctuation failures of double-pole direct-current transmission system |
| 12/18/2013 | CN103454553A Secondary side phase checking device of voltage transformer |
| 12/18/2013 | CN103454509A Mobile phone charging detecting system and mobile phone charging detecting method |
| 12/18/2013 | CN103454488A System and method for measuring motor current of motor-driven operating mechanism of high voltage isolating switch |
| 12/18/2013 | CN103454487A Internal overvoltage early warning system of power distribution network |
| 12/18/2013 | CN103454486A Lightning arrester performance parameter detecting device |
| 12/18/2013 | CN103454485A Process control loop current verification |
| 12/18/2013 | CN103454484A Test pencil |
| 12/18/2013 | CN103454483A Wire detecting pen |