| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 10/24/2012 | CN202502143U Voltage detection circuit for inductive sanitary ware |
| 10/24/2012 | CN202502142U Current detection device based on bus control mode |
| 10/24/2012 | CN202502141U Single-phase overvoltage signal detection apparatus |
| 10/24/2012 | CN202502140U 10kV overvoltage monitoring device |
| 10/24/2012 | CN202502139U High-voltage charged display device |
| 10/24/2012 | CN202502138U Vehicle circuit detection pen |
| 10/24/2012 | CN202502137U Voltage detection circuit for GIS single-phase circuit in converter station |
| 10/24/2012 | CN202502136U Measuring device for induced voltage and induced current of AC line |
| 10/24/2012 | CN202502135U Full optical fiber type current transformer |
| 10/24/2012 | CN202502134U Secondary voltage drop detection device for voltage transformer |
| 10/24/2012 | CN202502133U Online monitoring apparatus for cable sheath grounding currents |
| 10/24/2012 | CN202502132U Communication control system for on-line monitoring of transient overvoltage |
| 10/24/2012 | CN202502131U Voltage/current detecting circuit |
| 10/24/2012 | CN202502130U Circuit in power circuit for sampling direct-current voltage through photoelectric coupling isolation |
| 10/24/2012 | CN202502129U Screw pump working current on-line monitoring system |
| 10/24/2012 | CN102753982A A method of subsynchronous resonance detection |
| 10/24/2012 | CN102752893A Electroluminescent display device for high-voltage measurement |
| 10/24/2012 | CN102751714A Overvoltage protection circuit and current sampling device |
| 10/24/2012 | CN102749559A VFTO (Very Fast Transient Overvoltage) online measurement and alarm system for electric power |
| 10/24/2012 | CN102749556A Capacitance-type insulating capacitive voltage-dividing insulation monitor |
| 10/24/2012 | CN102749542A Power quality monitoring device based on double-velocity double-range sampling |
| 10/24/2012 | CN102749540A Testing device and method for hierarchical controllable shunt reactor valve control system |
| 10/24/2012 | CN102749538A Method for correcting and simulating parabolic antenna coupling level numerical simulation under radiation of high-power emission source main wave beam |
| 10/24/2012 | CN102749533A Low-voltage arc fault detection method |
| 10/24/2012 | CN102749532A Method for performing burn-in test |
| 10/24/2012 | CN102749507A Light source power detection device |
| 10/24/2012 | CN102749506A Direct current digital signal sampling circuit |
| 10/24/2012 | CN102749505A Method and device for voltage proportion measurement |
| 10/24/2012 | CN102749504A Sampling circuit of synchronizing signals of grid voltage |
| 10/24/2012 | CN102749503A Industrial large-current intelligent detection device |
| 10/24/2012 | CN102749502A Double-current comparison circuit for electric energy metering chip |
| 10/24/2012 | CN102749501A Isolated direct current high voltage detection method and isolated direct current high voltage detection circuit |
| 10/24/2012 | CN102749500A Industrial alternating-current (AC) ampere meter |
| 10/24/2012 | CN102749499A Noise reduction structure in alternating-current circuit for current detecting |
| 10/24/2012 | CN102749498A Alternating-current voltage detection circuit and method thereof and safety capacitor discharging circuit |
| 10/24/2012 | CN102749497A Current output prediction and fault diagnosis method of satellite solar cell array |
| 10/24/2012 | CN102749496A Multi-functional digital electronic detonator current detection device |
| 10/24/2012 | CN102749495A Quantitative assessment method for stability of double-wire arc welding electrical signal |
| 10/24/2012 | CN102749494A Circuit and method for detecting remaining power of motor drive controller of electric vehicle |
| 10/24/2012 | CN102749493A Frequency converter, and method and device for detecting output voltage of same |
| 10/24/2012 | CN102749492A Short-circuit current computing method for ring-shaped ship power grid |
| 10/24/2012 | CN102749491A Current sensor with a magnetic core |
| 10/24/2012 | CN102749490A Method and device for directly measuring voltage of cable head of downhole instrument |
| 10/24/2012 | CN102749489A Signal sampling device and method |
| 10/24/2012 | CN102749200A Engine state monitoring method based on automobile voltage |
| 10/24/2012 | CN101846701B Unbalance vector tester and method for adjusting balance of H-bridge capacitor set |
| 10/24/2012 | CN101231310B Voltage measurement instrument and method having improved automatic mode operation |
| 10/23/2012 | US8296102 System and method for testing derating performance of a component of an electronic device |
| 10/23/2012 | US8295296 Programmable high-speed cable with printed circuit board and boost device |
| 10/18/2012 | WO2012141755A1 Battery voltage measurement |
| 10/18/2012 | WO2012139651A1 Method for the contactless determination of an electrical potential using an oscillating electrode, and device |
| 10/18/2012 | WO2012139650A1 Device for the contactless determination of an electrical potential of an object, current probe, and method |
| 10/18/2012 | WO2012139648A1 Method for the contactless determination of an electrical potential of an object using two different values for the electric flux, and device |
| 10/18/2012 | US20120265463 Method and device for determining an input voltage on a transforming station of a power network |
| 10/18/2012 | US20120263985 Current sensor |
| 10/18/2012 | US20120262153 Apparatus and method for measuring electrical parameters of circuit |
| 10/18/2012 | US20120262152 Current sensors, systems and methods |
| 10/18/2012 | US20120262148 Voltage measurement apparatus |
| 10/18/2012 | US20120262147 Method for compensating timing offset in calibration of AC voltage level switching in relay and computer program product thereof |
| 10/18/2012 | DE102012206096A1 Stromsensoren, systeme und verfahren Current sensors, systems and procedures |
| 10/18/2012 | DE102012102789A1 Schaltkreis zum Bestimmen eines Mittelwertes Circuit for determining a mean value |
| 10/18/2012 | DE102011002084A1 Verfahren und Vorrichtung zur Bestimmung eines Fehlerstromanteils an einem Differenzstrom Method and apparatus for determining a fault current interest in a differential current |
| 10/17/2012 | EP2511714A2 Sensor component, sensor control and current measurement circuit |
| 10/17/2012 | EP2511711A1 Load monitoring in an electricity supply system |
| 10/17/2012 | EP2510373A1 Method and device for calibrating a voltage measurement on a driving circuit |
| 10/17/2012 | CN202495734U Overcurrent protection device for distribution box |
| 10/17/2012 | CN202494766U Voltage internal resistance general-purpose tester |
| 10/17/2012 | CN202494742U Multi function electric power quality collecting analyzer |
| 10/17/2012 | CN202494736U Device for detecting driving circuit of contactor |
| 10/17/2012 | CN202494735U Direct-current high-voltage detection device |
| 10/17/2012 | CN202494720U Current detection circuit for soft starter |
| 10/17/2012 | CN202494719U Bridge and tunnel through ground wire monitoring apparatus |
| 10/17/2012 | CN202494718U Voltage sensor |
| 10/17/2012 | CN202494717U Voltage detection plate |
| 10/17/2012 | CN202494716U Knife switch provided with operational safety indications for 10kV or below power line |
| 10/17/2012 | CN202494715U Test pencil |
| 10/17/2012 | CN202494714U Novel electroscope |
| 10/17/2012 | CN202494713U Current sampling circuit |
| 10/17/2012 | CN102739293A Management of secure element deadlock |
| 10/17/2012 | CN102739066A Inductive current-to-voltage converter and method for measuring high frequency current |
| 10/17/2012 | CN102738666A Novel electricity testing plug |
| 10/17/2012 | CN102738140A Inductor and eddy current sensor including an inductor |
| 10/17/2012 | CN102737828A Capacitor voltage transformer provided with transient overvoltage monitoring unit |
| 10/17/2012 | CN102736030A Battery voltage detector |
| 10/17/2012 | CN102736003A Portable partial discharge pulse current sensor |
| 10/17/2012 | CN102735992A Surface potential pilot frequency comparison-based ground grid defect identification method and system |
| 10/17/2012 | CN102735986A Method for rapidly judging wiring error of power distribution transformer monitoring terminal |
| 10/17/2012 | CN102735985A Random current type anti-detection device and anti-detection method |
| 10/17/2012 | CN102735969A Power transformer winding fault simulation test method |
| 10/17/2012 | CN102735962A Power quality monitoring method and power quality monitoring device |
| 10/17/2012 | CN102735947A Power grid overvoltage identification method by adopting multi-parameter ratio codes |
| 10/17/2012 | CN102735922A Low-cost single-phase harmonic electric energy meter |
| 10/17/2012 | CN102735921A Single-phase electric parameter acquisition device and method for analyzing and processing single-phase electric signal |
| 10/17/2012 | CN102735918A Battery voltage acquisition method and system based on linear temperature compensation algorithm |
| 10/17/2012 | CN102735917A Voltage acquisition circuit for digital signal processor (DSP) |
| 10/17/2012 | CN102735916A Device for detecting voltage of three-phase neutral point clamped PWM (pulse-width modulation) inverter |
| 10/17/2012 | CN102735915A Battery voltage detector and battery voltage detecting method |
| 10/17/2012 | CN102735914A Synchronous rectification circuit and zero-cross detection method |
| 10/17/2012 | CN102735913A Voltage detection apparatus and combination circuit |
| 10/17/2012 | CN102735912A Voltage detection device |