| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 07/04/2012 | CN102545611A Inductor current measurement system and method for DC to DC converters |
| 07/04/2012 | CN102545305A Circuit of nonpolar safety charger |
| 07/04/2012 | CN102545262A Method for detecting island of grid-connected photovoltaic power system on basis of electric energy quality constraint |
| 07/04/2012 | CN102545197A Low-current grounding protection method and device on basis of active excitation differential state principle |
| 07/04/2012 | CN102545151A On-line monitoring system for capacitor voltage transformer |
| 07/04/2012 | CN102545143A Device and method for detection and protection and circuit board |
| 07/04/2012 | CN102545140A Method, system, and apparatus for detecting an arc event using breaker status |
| 07/04/2012 | CN102544926A Overload alarming socket |
| 07/04/2012 | CN102543334A Device for automatically testing voltage-sensitive voltage of resistor disc and resistor disc inkjet printing process |
| 07/04/2012 | CN102541137A Current and voltage detection circuit, and current control circuit |
| 07/04/2012 | CN102540095A Voltage detection system of fuel cell uniwafers |
| 07/04/2012 | CN102540080A Method for detecting voltage of battery (BAVT), and terminal equipment |
| 07/04/2012 | CN102540079A Detection method and terminal for terminal charging |
| 07/04/2012 | CN102540051A Device and method for testing voltage margin |
| 07/04/2012 | CN102540003A System for monitoring leakage current of insulator of intelligent electric transmission line |
| 07/04/2012 | CN102539997A Method and device for detecting arc faults in an alternating current network |
| 07/04/2012 | CN102539991A Electricity leakage alarming device |
| 07/04/2012 | CN102539962A Method for measuring non-uniform current distribution coefficient range of parallel multi-resistor piles |
| 07/04/2012 | CN102539959A Circuit assembly and method for detecting an arc |
| 07/04/2012 | CN102539947A Active voltage negative increase tester for charger testing |
| 07/04/2012 | CN102539920A Multipurpose induction conductivity measuring electrode |
| 07/04/2012 | CN102539902A Method for identifying direct lightning strike and inductive lightning strike of transmission line based on direct measurement of traveling wave |
| 07/04/2012 | CN102539901A Zero resistance insulator string monitoring device and method |
| 07/04/2012 | CN102539900A Hybrid detecting device for alternating-current voltage and direct-current voltage of wind power converter |
| 07/04/2012 | CN102539899A Integrated mosfet current sensing for fuel-gauging |
| 07/04/2012 | CN102539898A Design method of adjustable pulse width current generation and detection circuit |
| 07/04/2012 | CN102539897A High-voltage charged display with nuclear phase function |
| 07/04/2012 | CN102539896A Low-voltage alarm device for battery pack |
| 07/04/2012 | CN102539895A USB (universal serial bus) port detecting circuit |
| 07/04/2012 | CN102539894A Clamp electroprobe |
| 07/04/2012 | CN102539893A Fault detecting method for output driving load of whole automobile controller and whole automobile controller |
| 07/04/2012 | CN102539892A Method for obtaining true effective values of AC (alternating current) signals |
| 07/04/2012 | CN102539891A Method and device for acquiring primary voltage of transformer |
| 07/04/2012 | CN102539890A Method for separating periodic component from steep pulse component in insulation leakage current |
| 07/04/2012 | CN102539889A Multi-path high-voltage small current detecting circuit |
| 07/04/2012 | CN102539888A Direct measurement capacitance-current primary voltage sensor |
| 07/04/2012 | CN102539887A Fan current detection method |
| 07/04/2012 | CN102539886A Three-phase non-centerline triangular phase voltage measurement circuit and measurement method |
| 07/04/2012 | CN102539885A Mixed photoelectric impulse current measurement system |
| 07/04/2012 | CN102539884A Method for detecting voltage value |
| 07/04/2012 | CN102539883A Solenoid nesting type all-fiber current sensor |
| 07/04/2012 | CN102539882A Magnetic field current sensors |
| 07/04/2012 | CN102539881A Voltage detection device for assembled battery |
| 07/04/2012 | CN102539880A Hard disk current testing system and adapter plate thereof |
| 07/04/2012 | CN102539879A Method for detecting reactive current |
| 07/04/2012 | CN102539878A Voltage sampling circuit, and filament breakage detecting device of automotive steering lamp employing such voltage sampling circuit |
| 07/04/2012 | CN102539877A Resistive current energized monitoring system for metal oxide arrester (MOA) based on compass synchronous time service |
| 07/04/2012 | CN102539876A Array type current amplification sum testing circuit |
| 07/04/2012 | CN102539875A Bidirectional peak voltage detector |
| 07/04/2012 | CN102539874A Fiber bragg grating current transformer with automatic temperature tracking function and automatic temperature tracking method |
| 07/04/2012 | CN102539873A Coil of optical fiber current sensor and optical fiber current sensor |
| 07/04/2012 | CN102539869A Current detecting device and method |
| 07/04/2012 | CN102539867A Intelligent phase voltammeter and measurement method thereof |
| 07/04/2012 | CN102538935A Road surface weighing system for preventing cheat |
| 07/04/2012 | CN102528224A Alternating and direct current and voltage signal detection device for double-wire welding |
| 07/04/2012 | CN102525254A IH (Indirect Heating) electric rice cooker with power failure detection |
| 07/04/2012 | CN102053197B Switch cue circuit during power failures |
| 07/04/2012 | CN102043083B Giant magnetoresistance array current sensor |
| 07/04/2012 | CN102012448B Rogowski current sensor |
| 07/04/2012 | CN101923111B Isolation detection circuit of DC bus voltage |
| 07/04/2012 | CN101916674B Super insulation operating rod |
| 07/04/2012 | CN101907925B Key circuit, electronic device and television using same, and testing method |
| 07/04/2012 | CN101900763B Method for monitoring constant standing-wave ratio |
| 07/04/2012 | CN101893652B Method for detecting harmonic wave and reactive current based on spatial transformation of voltage vectors |
| 07/04/2012 | CN101881806B Organic semiconductor device characteristic measuring instrument |
| 07/04/2012 | CN101876681B Method for detecting ground short circuit of output side of AC servo driver or low voltage inverter |
| 07/04/2012 | CN101871982B Method and circuit for detecting phase sequence and asymmetrical voltage of three phase current |
| 07/04/2012 | CN101860080B Distribution network metering and protection integral device suspended at high-voltage side |
| 07/04/2012 | CN101858937B Anti-inadvertent touch type electricity-testing device of high voltage switch cabinet |
| 07/04/2012 | CN101839940B Output current detection circuit of phase inverter |
| 07/04/2012 | CN101833029B Method and circuit for detecting bus voltage of wind power current transformer |
| 07/04/2012 | CN101825657B Medium-high voltage single-core crosslinked cable induction voltage and circular-current online detection method and device |
| 07/04/2012 | CN101825656B Method for rapidly testing half-wave voltage value of lithium niobate optical modulator |
| 07/04/2012 | CN101806825B Method and system for measuring effective value of electric parameter of electric motor powered up by frequency converter |
| 07/04/2012 | CN101718806B Testing device and testing method for spark voltage of electrolyte under non-critical state |
| 07/04/2012 | CN101657730B Integrated circuit having a multi-purpose node configured to receive a threshold voltage and to provide a fault signal |
| 07/04/2012 | CN101561457B Meter device, information processing device and meter driving method |
| 07/04/2012 | CN101545957B Gate-structure magnetoelectric magnetic filed sensor and manufacturing method thereof |
| 07/04/2012 | CN101405923B Load detector for a dimmer |
| 07/04/2012 | CN101403779B Parameter measuring apparatus and system for high tension power line |
| 07/04/2012 | CN101403777B Resistive current tester for great current zinc oxide lightning arrester |
| 07/04/2012 | CN101398455B Measuring system and method |
| 07/04/2012 | CN101393239B Substance surface property parametric analysis system |
| 07/04/2012 | CN101090597B Method for determining plasma characteristics |
| 07/04/2012 | CN101047356B Overcurrent detection circuit for electric machine driver |
| 07/03/2012 | US8212548 Branch meter with configurable sensor strip arrangement |
| 07/03/2012 | US8212546 Wideband CMOS RMS power detection scheme |
| 06/28/2012 | WO2012088488A2 Assembly and circuit structure for measuring current through an integrated circuit module device |
| 06/28/2012 | WO2012085996A1 Potential measuring apparatus |
| 06/28/2012 | WO2012040079A3 Systems, methods, and devices for analyzing utility usage with load duration curves |
| 06/28/2012 | US20120167026 Assembly and circuit structure for measuring current through an integrated circuit module device |
| 06/28/2012 | US20120166118 Method for Processing a Measured-Value Signal Determined in an Analog Manner, a Resolver System for Implementing the Method and a Method for Determining an Output Current of a Converter |
| 06/28/2012 | US20120166117 Method and apparatus for evaluating superconducting tunnel junction detector noise versus bias voltage |
| 06/28/2012 | US20120161748 Voltage margin testing device and method |
| 06/28/2012 | DE102011122440A1 Current sensor useful in battery, comprises sensor element, and signal processing arrangement, where test signal generator is coupled with processing arrangement for generating test signal pattern and is fed into processing arrangement |
| 06/28/2012 | DE102011089567A1 System und Verfahren zum Evaluieren von Fahrzeugladeschaltkreisen System and method for evaluating vehicle charging circuits |
| 06/28/2012 | DE102011088943A1 Messen der Summe quadrierter Ströme Measuring the sum of squared currents |
| 06/28/2012 | DE102011086034A1 Halbleitervorrichtung Semiconductor device |
| 06/28/2012 | DE102010063961A1 Arrangement for measuring current value in galvanic primary conductor, has current measuring circuit arranged on top face of circuit carrier, where edges of top and bottom faces of circuit carrier are rounded |
| 06/28/2012 | DE102010061537A1 Sicherheitsentladevorrichtung für ein elektrisches Speicherelement Sicherheitsentladevorrichtung for an electric storage element |