| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 09/01/2009 | US7583074 Low cost millimeter wave imager |
| 09/01/2009 | US7583072 Current sensor for measuring current flowing through bus bar |
| 08/27/2009 | WO2009105642A2 Compressor protection and grid fault detection device |
| 08/27/2009 | WO2009103998A2 A method of inference of appliance usage. data processing apparatus and/or computer software |
| 08/27/2009 | WO2009038579A3 Thermoelastic self-actuation in piezoresistive resonators |
| 08/27/2009 | US20090216479 Method and apparatus for testing a power engineering device |
| 08/27/2009 | US20090212826 Hysteresis comparator |
| 08/27/2009 | US20090212825 High speed comparator |
| 08/27/2009 | US20090212761 Dc-dc converter and voltage detector using same |
| 08/27/2009 | US20090212760 Supply current based testing of CMOS output stages |
| 08/27/2009 | US20090212759 Transformer-isolated analog-to-digital converter (adc) feedback apparatus and method |
| 08/26/2009 | EP1875258B1 Test prepared integrated circuit with an internal power supply domain |
| 08/26/2009 | CN201298070Y Monolithic voltage and temperature collecting system of storage battery |
| 08/26/2009 | CN201298054Y Equipment for measuring resistive currents of gapless metal oxide arresters |
| 08/26/2009 | CN201298053Y A control circuit for detecting AC and DC by a temperature comparison method |
| 08/26/2009 | CN201298052Y 电流传感器 Current Sensors |
| 08/26/2009 | CN101515024A Online low performing cell prediction and detection of fuel cell system |
| 08/26/2009 | CN101515015A Power quality monitoring and recording device of power system |
| 08/26/2009 | CN101515006A Method for measuring nonlinear susceptibility of materials |
| 08/26/2009 | CN101515003A Method for measuring surface charge density of materials |
| 08/26/2009 | CN101515002A Thin film type thermoelectric converter and a measuring method |
| 08/26/2009 | CN101515001A Electric field induction intelligent instrument for measuring high voltage |
| 08/26/2009 | CN101515000A Method and device for improving measuring precision of current magnitude |
| 08/26/2009 | CN101514999A Electric power measurement multifunctional instrument system and method for measurement |
| 08/26/2009 | CN100533156C Voltage measuring device with 1muV resolution |
| 08/26/2009 | CN100533154C Two measuring ranges portable potentiometer |
| 08/26/2009 | CN100533153C Four measuring ranges portable potentiometer |
| 08/26/2009 | CN100533105C Test stand for detecting hub bearing ABS sensor dynamic signal |
| 08/25/2009 | US7580803 Energy source monitoring and control system |
| 08/25/2009 | US7579846 Offset voltage measuring apparatus |
| 08/25/2009 | CA2482797C Protective relay with synchronized phasor measurement capability for use in electric power systems |
| 08/20/2009 | WO2009102535A1 Waveform current monitor using rdson of low-side bridge fet |
| 08/20/2009 | WO2009004647A3 Clamp meter with safe trigger mechanism |
| 08/20/2009 | US20090210180 Arrangement for determining the operational parameters of a high-frequency power amplifier |
| 08/20/2009 | US20090206821 Process variation on-chip sensor |
| 08/20/2009 | DE102008009888A1 Switching arrangement for bi-directional measurement of unipolar currents, has transformer with primary winding and secondary winding, where active switch and diode are provided for passing measuring current with direction |
| 08/19/2009 | EP2089725A2 Advanced real-time grid monitoring system and method |
| 08/19/2009 | EP1938113B1 A sampling module and a method of sampling one or more analogue characteristics of a power transmission system |
| 08/19/2009 | CN201294507Y Radio remote control switch |
| 08/19/2009 | CN201294029Y Anti-theft monitoring system for base station accumulator battery |
| 08/19/2009 | CN201293805Y AC voltage test pen |
| 08/19/2009 | CN201293804Y High, middle and low level test pen for circuit |
| 08/19/2009 | CN201291426Y Multifunctional plier |
| 08/19/2009 | CN101512351A Circuit for continuously measuring discontinuous metal insulator transition of mit element and mit sensor using the same |
| 08/19/2009 | CN101510687A Frequency conversion method for implementing multi-sampling rate signal using window function in electric network |
| 08/19/2009 | CN101509960A Battery voltage and temperature monitoring device |
| 08/19/2009 | CN101509941A Accumulator anti-theft device, method and accumulator theftproof system in communication network |
| 08/19/2009 | CN101509940A Electric network influencing analytical method caused by big motor starting up |
| 08/19/2009 | CN101509881A On-line electrical leakage detecting method for enameled wire |
| 08/19/2009 | CN100529783C Calibration comparator circuit |
| 08/19/2009 | CN100529773C Integrate circuit system pressing impedance detection method |
| 08/19/2009 | CN100529772C Power network overvoltage signal frequency conversion sampling method |
| 08/19/2009 | CN100529771C Voltage measuring instrument with high resolution |
| 08/19/2009 | CN100529770C Voltage measurer with resolution amounting to 0.1uv |
| 08/19/2009 | CN100529769C Variation-free voltage measuring device adopting transposition branch |
| 08/19/2009 | CN100529768C Voltage measuring instrument with minimum stepping 0.1uV |
| 08/18/2009 | US7577536 Determination of ohmic losses in electrical devices |
| 08/13/2009 | US20090204349 Measurement and apparatus for electrical measurement of electrical drive parameters for a mems based display |
| 08/13/2009 | US20090201010 Pumping voltage detector |
| 08/13/2009 | US20090201009 Methods for measurement and characterization of interferometric modulators |
| 08/13/2009 | US20090201008 Methods for measurement and characterization of interferometric modulators |
| 08/12/2009 | EP2088437A1 Energy Meter with Power Quality Monitoring and Diagnostic Systems |
| 08/12/2009 | EP2013630A4 Systems and methods of rf power transmission, modulation, and amplification |
| 08/12/2009 | CN201290091Y Switch device capable of adjusting and displaying motor rotary speed |
| 08/12/2009 | CN201290068Y Terminal for monitoring power supply environment |
| 08/12/2009 | CN201289957Y Electrician knife |
| 08/12/2009 | CN201289938Y Plug with electric energy metering terminal |
| 08/12/2009 | CN201289520Y Device for collecting accumulator voltage based on Nios soft nuclear processor |
| 08/12/2009 | CN201289499Y Low-voltage carrier concentrator terminal and intercommunion sampling unit thereof |
| 08/12/2009 | CN201289497Y Non-contact type probe |
| 08/12/2009 | CN101506668A Method for sampling a current or voltage profile and for forming sampling values, in particular for use in protection and control devices for energy transmission systems |
| 08/12/2009 | CN101505060A Frequency conversion method for implementing multi-sampling rate signal by using narrow band filtering in electricity grid |
| 08/12/2009 | CN101504436A Semi-wave DC detection method |
| 08/12/2009 | CN101504429A Portable on-line measurement instrument for electrician electric bridge drain voltage |
| 08/12/2009 | CN101504404A Soil corrosivity evaluation method for substation grounding network in Guangdong area |
| 08/12/2009 | CN100526889C Instantaneous voltage lowering detection device |
| 08/12/2009 | CN100526888C Differential current measuring apparatus, tripping device and switchgear |
| 08/12/2009 | CN100526887C Electric power monitor for single phase AC electric device inspection and repair |
| 08/11/2009 | US7573254 Systems and methods of identifying patch cord connections in a communications patching system using common mode transmission |
| 08/06/2009 | WO2009097469A1 Self testing fault circuit interrupter apparatus and method |
| 08/06/2009 | WO2009097083A1 Fuel gauging system and method thereof |
| 08/06/2009 | US20090198460 Power Supply Circuitry, Collection and Reporting of Power Supply Parameter Information |
| 08/06/2009 | US20090198399 Battery System for Vehicle, On-Vehicle Battery Module, and Cell Controller |
| 08/06/2009 | US20090197127 Algorithm for Stack Current Controller Based on Polarization Curve Estimation of a Fuel Cell Stack |
| 08/06/2009 | DE102008006223A1 Voltage detecting device for use in high volt system of e.g. hybrid vehicle, has matrix-shaped electrical display unit provided for two-dimensional representation of voltages and reference voltage |
| 08/06/2009 | DE102008003586A1 Meßgerät, insbesondere Prüfgerät und/oder Multimeter Instrument, particularly test and / or multimeter |
| 08/06/2009 | DE102007003830B4 Vorrichtung zur Messung eines durch einen elektrischen Leiter fließenden elektrischen Stroms A device for measuring a current flowing through an electrical conductor of electric current |
| 08/06/2009 | CA2711903A1 Self testing fault circuit interrupter apparatus and method |
| 08/05/2009 | EP2085784A2 Battery system for vehicle, on-vehicle battery module, and cell controller |
| 08/05/2009 | EP2084546A2 System and method to measure series-connected cell voltages |
| 08/05/2009 | EP1807708B1 Battery current sensor for a motor vehicle |
| 08/05/2009 | CN201286015Y Intelligent building electricity saving and distributing apparatus |
| 08/05/2009 | CN201285946Y Socket having electric energy metering terminal |
| 08/05/2009 | CN201285437Y Multichannel analogue cell instrument |
| 08/05/2009 | CN201285436Y Circuit for testing maximum starting impact current of switch electric power source |
| 08/05/2009 | CN201285432Y Magnetic field current uploading apparatus for electricity generator |
| 08/05/2009 | CN201285429Y Detection alarm apparatus for leakage protection plug |
| 08/05/2009 | CN201285425Y 电能质量分析仪 Power Quality Analyzer |
| 08/05/2009 | CN201285417Y Balance test instrument for portable oil pumping machine by power method |
| 08/05/2009 | CN201285412Y Network type voltage monitoring system |