| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 02/27/2013 | CN102944730A Automatic detection device for voltage abnormal state |
| 02/27/2013 | CN102944729A Auxiliary electricity testing operation tool |
| 02/27/2013 | CN102944728A Drilling electric shock alarm system for trenchless drilling machine |
| 02/27/2013 | CN102944727A Switchgear arrester leakage current sampling device |
| 02/27/2013 | CN102944726A Device for separating resistive current from leakage current |
| 02/27/2013 | CN102944725A Full-current frequency conversion device for leakage current |
| 02/27/2013 | CN102944724A Current-voltage converter |
| 02/27/2013 | CN102944723A Voltage detection circuit and voltage detection method |
| 02/27/2013 | CN102944722A Method for monitoring inner electrified electric potentials of spacecraft |
| 02/27/2013 | CN102944721A Ionic current collection test device and method for satellite tail regions |
| 02/27/2013 | CN102944720A Short-circuit current attenuation calculating method with consideration of dynamic load for power system |
| 02/27/2013 | CN102944719A Passive direct-current voltage transducer |
| 02/27/2013 | CN102944718A Current sampler |
| 02/27/2013 | CN102944717A Voltage detection device and method |
| 02/27/2013 | CN102944716A Lightning flow sensor of Rogowski coil based on printed circuit board |
| 02/27/2013 | CN102944715A High-current detecting machine |
| 02/27/2013 | CN102944714A Differential signal detecting device |
| 02/27/2013 | CN102162823B Method and device for detecting state of overcurrent protector of battery |
| 02/27/2013 | CN102135560B Disturbance identification method used during intrusion of lightning waves in transformer substation |
| 02/27/2013 | CN102095917B Test method for current noise of high-resistance device and medium material |
| 02/27/2013 | CN101900793B Battery discharge residual time estimating method |
| 02/27/2013 | CN101556259B Resuscitator for slurry potential test pole |
| 02/26/2013 | US8384373 AC line signal detection device and method and power supply device |
| 02/26/2013 | US8384136 Demultiplexed nanowire sensor array for detection of chemical and biological species |
| 02/21/2013 | WO2013025738A2 Apparatus and method for accurate energy device state-of-health (soh) monitoring |
| 02/21/2013 | WO2013024244A1 Method and apparatus for measurement of a dc voltage |
| 02/21/2013 | WO2013001355A3 Method for distributed waveform recording in a power distribution system |
| 02/21/2013 | US20130043907 Method and system for measuring amplitude and phase difference between two sinusoidal signals |
| 02/21/2013 | US20130043878 Communication line driver protection circuitry, systems and methods |
| 02/21/2013 | US20130043865 Pair comprising printed circuit board and further board and method for measuring current intensity |
| 02/21/2013 | US20130043862 Biosensor detecting thiol group and method for preparing the biosensor |
| 02/21/2013 | US20130043861 Voltage detection device for fuel cell |
| 02/21/2013 | DE102011110648A1 Current sensor for measuring high-current required for electric drive of motor car, has evaluation circuit that is adapted to determine change in non-constant excitation current recorded evaluate signals for current measurement |
| 02/21/2013 | DE102011110632A1 Strangstrombestimmung in Photovoltaikanlagen Phase current provision in photovoltaic systems |
| 02/21/2013 | DE102011080954A1 Paar aus Leiterplatte und weiterer Platte sowie Verfahren zum Messen einer Stromstärke Pair of printed circuit board and other panel and method for measuring a current |
| 02/21/2013 | DE102006059384B4 Gerät mit einem Stromwandler zur Erfassung eines durch einen Stromleiter fließenden Stromes sowie Klemmen-/Stromwandler-Modul für ein derartiges Gerät Device with a current transformer for detecting a current flowing through a power line current and terminal / power converter module for such a device |
| 02/21/2013 | CA2845714A1 Method and apparatus for measurement of a dc voltage |
| 02/20/2013 | EP2560014A2 Current-sensing circuit |
| 02/20/2013 | EP2558872A1 Circuit board meter for circuit breakers |
| 02/20/2013 | CN202750071U Capacitance sensor control circuit used for vehicle refueling |
| 02/20/2013 | CN202749747U Electric knife |
| 02/20/2013 | CN202748464U Power battery detection circuit and power battery detection chip |
| 02/20/2013 | CN202748412U Optical auxiliary detection circuit for thunder and lightning detection |
| 02/20/2013 | CN202748407U Low-cost single-phase harmonic electric energy meter |
| 02/20/2013 | CN202748405U Device for detecting end screen current parameter of high-voltage transformer bushing in real time. |
| 02/20/2013 | CN202748404U Wind power grid voltage, current, and harmonic wave detection apparatus based on DSP and ARM |
| 02/20/2013 | CN202748403U Device for improving current sampling linear range and electric energy measuring accuracy of electric energy meter |
| 02/20/2013 | CN202748402U Anti-interference voltage transducer |
| 02/20/2013 | CN202748401U Full-automatic detection tool for LED lamp |
| 02/20/2013 | CN202748400U Earth current monitoring device for power transmission cable terminal oversheath |
| 02/20/2013 | CN202748399U Voltage sensing device |
| 02/20/2013 | CN202748398U Voltage/current integrated transducer |
| 02/20/2013 | CN202748397U Coil voltage detection circuit for superconducting magnet |
| 02/20/2013 | CN202748388U Dual-purpose screwdriver with voltage tester |
| 02/20/2013 | CN202748385U Battery positioning device and device for detecting OCV/IR (Open Circuit Voltage/Inter Resistance) of battery |
| 02/20/2013 | CN202742231U Vices |
| 02/20/2013 | CN102938847A Video signal failure warning control method |
| 02/20/2013 | CN102938556A Protecting, measuring and controlling integrated device with unbalanced current protection function for capacitor |
| 02/20/2013 | CN102937680A Intelligent distribution network fault monitoring terminal |
| 02/20/2013 | CN102937667A Wireless, intelligent and controllable metering equipment used for socket |
| 02/20/2013 | CN102937666A Method for non-contact measurement of spike voltage of generator |
| 02/20/2013 | CN102937665A Modulation direct-current voltage transformer |
| 02/20/2013 | CN102305885B Isolation type voltage sensor |
| 02/20/2013 | CN102135557B Non-delay sampling circuit for three-phase alternating-current speed-measuring motor |
| 02/20/2013 | CN101949966B Mobile terminal capable of accurately detecting charging current |
| 02/20/2013 | CN101575793B Automatic weighing method of barrel washing machine |
| 02/20/2013 | CN101470138B Detection circuit and signal detection method |
| 02/19/2013 | US8380452 Control device of secondary battery and map correction method |
| 02/19/2013 | US8378716 Bulk-driven current-sense amplifier and operating method thereof |
| 02/19/2013 | CA2787916A1 Method and system for measuring amplitude and phase difference between two sinusoidal signals |
| 02/14/2013 | WO2013023189A1 Battery monitoring circuit |
| 02/14/2013 | WO2013020698A1 Differential current sensor |
| 02/14/2013 | US20130038318 Ac voltage detecting circuit and image forming apparatus having the same |
| 02/14/2013 | DE102011080874A1 Electrical measuring device for measuring electrical currents, comprises connecting unit for connecting measuring current transformer, and calibration loop for calibration of measuring unit of measuring device |
| 02/14/2013 | DE102011080603A1 Method for measuring electric current in electrical circuit of battery system of motor vehicle, involves splitting current on two parallel paths, where partial current per path is measured with current measuring unit |
| 02/14/2013 | DE102011080587A1 Verfahren zum Messen eines mittels eines Frequenzumrichters erzeugten analogen Signals A method for measuring an analog signal generated by a frequency converter |
| 02/14/2013 | CA2840230A1 A controller for a voltage converter |
| 02/13/2013 | EP2557426A2 Method of measuring an analog signal generated by a frequency inverter |
| 02/13/2013 | CN202737787U Solar charging type intelligent cross interconnection box |
| 02/13/2013 | CN202737777U Inverter with storage battery under-voltage acousto-optic directives |
| 02/13/2013 | CN202736774U Electric power safety device |
| 02/13/2013 | CN202735499U Multifunctional superconductive strip critical current uniformity lossless continuously detecting device |
| 02/13/2013 | CN202735486U State display apparatus used for lead acid battery |
| 02/13/2013 | CN202735452U Leakage current detection apparatus for insulating type high altitude construction vehicles |
| 02/13/2013 | CN202735449U Portable multifunctional series electric detector |
| 02/13/2013 | CN202735448U Multipoint grounding monitoring device |
| 02/13/2013 | CN202735415U Contactless high-voltage wireless phase detector |
| 02/13/2013 | CN202735412U On-line measurement device for capacitive current of power grid with neutral point grounded through arc suppression coil |
| 02/13/2013 | CN202735406U Single-phase electric parameter acquiring device |
| 02/13/2013 | CN202735403U Signal processing circuit for collector in electric system |
| 02/13/2013 | CN202735402U Simple battery-voltage detecting alarm device |
| 02/13/2013 | CN202735401U Current detection circuit of chip |
| 02/13/2013 | CN202735400U Human body static potential detection device |
| 02/13/2013 | CN202735399U Rapid detector for output of indoor unit of constant-frequency chest-type air conditioner |
| 02/13/2013 | CN202735398U Warning device for reversed power delivery on transformer station 10KV line outlet |
| 02/13/2013 | CN202735397U Power-on informing device for mains power failure |
| 02/13/2013 | CN202735396U Portable multifunctional electroscope |
| 02/13/2013 | CN202735395U Voltage-measuring box specially used for packaged cylinder-type cell |
| 02/13/2013 | CN202735394U Electroluminescent voltage sensor |
| 02/13/2013 | CN202735393U Measurement system for rapidly measuring thermoelectrical potential |