| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 01/31/2013 | WO2013014242A1 Circuit for conducting an electrical current |
| 01/31/2013 | WO2013014240A1 Circuit for conducting an electric current |
| 01/31/2013 | WO2011157047A8 Capacitive sensor calibration system for measuring fast transient over-voltages |
| 01/31/2013 | US20130030731 Alternating-current electric quantity measuring apparatus and alternating-current electric quantity measuring method |
| 01/31/2013 | US20130030574 System and Method for Heating Ventilation and Air Conditioning Component Detection |
| 01/31/2013 | US20130028739 Wind turbine blade and a lightning measurement system therein |
| 01/31/2013 | US20130027025 Method and apparatus for measuring ac voltages |
| 01/31/2013 | US20130027024 Current sensor arrangement |
| 01/31/2013 | DE112011101326T5 Isolierungsbeeinträchtigungs-Diagnosevorrichtung Insulation deterioration-diagnostic apparatus |
| 01/31/2013 | DE102012213196A1 Schaltung zum Leiten eines elektrischen Stromes Circuit for passing an electric current |
| 01/31/2013 | DE102012213183A1 Schaltung zum Leiten eines elektrischen Stromes Circuit for passing an electric current |
| 01/31/2013 | DE102012212706A1 Messen von Spannung Measuring Voltage |
| 01/31/2013 | DE102012014471A1 Energieversorgungsschaltung für elektrische Komponenten Power supply circuit for electrical components |
| 01/31/2013 | DE102011108591A1 Überwachungsvorrichtung für eine doppelgespeiste Asynchronmaschine A monitoring apparatus for a double-fed asynchronous machine |
| 01/31/2013 | DE102011080034A1 Stromsensoranordnung Flow sensor assembly |
| 01/31/2013 | DE102011079765A1 Vorrichtung und Verfahren zum kontinuierlichen Überprüfen einer elektrischen Verbindung sowie eines Analog-Digital-Umsetzers An apparatus and method for continuously checking an electrical connection as well as an analog-to-digital converter |
| 01/30/2013 | EP2551682A2 Systems, methods, and apparatus for sensing AC voltage |
| 01/30/2013 | EP2551681A2 Zero-crossing detector circuit and image forming apparatus having the same |
| 01/30/2013 | EP2550173A2 Method for examining a state of a circuit of a motor vehicle |
| 01/30/2013 | CN202713630U Base station current accurate acquisition transmission unit |
| 01/30/2013 | CN202712892U Battery management system and load detection circuit thereof |
| 01/30/2013 | CN202712719U Electricity testing and switching operation integration device |
| 01/30/2013 | CN202710712U I-V characteristic adjusting and sampling device of solar cell |
| 01/30/2013 | CN202710692U Single-phase alternating current load connection and disconnection detection circuit |
| 01/30/2013 | CN202710691U Cable online monitoring device based on wireless transmission of MG323 |
| 01/30/2013 | CN202710690U Lightning arrester leakage current online monitoring system based on wireless sensor network |
| 01/30/2013 | CN202710676U Monitoring system for high loss line branch |
| 01/30/2013 | CN202710653U Digital isolation sampling circuit of high common mode voltage analog signals |
| 01/30/2013 | CN202710652U Centrifuge combined test testing system |
| 01/30/2013 | CN202710651U Device for measuring direct voltage and current |
| 01/30/2013 | CN202710650U MOA real-time monitoring system |
| 01/30/2013 | CN202710649U Device for determining arc suppression coil gear based on voltage signal |
| 01/30/2013 | CN202710648U Grid voltage zero-crossing detection circuit |
| 01/30/2013 | CN202710647U Monitoring device for direct current system |
| 01/30/2013 | CN202710646U Sudden power outage alarm transmission circuit |
| 01/30/2013 | CN202710645U Optocoupler-free isolation type switching value input detection module |
| 01/30/2013 | CN202710644U Blower fan power off acousto-optic indicator |
| 01/30/2013 | CN202710643U Lightning current energy detection system and lightning protection device |
| 01/30/2013 | CN202710642U Improved current sensor |
| 01/30/2013 | CN202710641U Improved voltage sensor |
| 01/30/2013 | CN202710640U Detection circuit used for detecting voltage of MCU (micro controller unit) |
| 01/30/2013 | CN202710639U Detection circuit for detecting voltage of MCU (micro controller unit) |
| 01/30/2013 | CN202710638U Barcode handheld terminal storage battery monitoring system |
| 01/30/2013 | CN202710633U Wiring circuit for digital display ammeter |
| 01/30/2013 | CN202710085U Automatic recording device of batches of detection data |
| 01/30/2013 | CN102904533A Received signal strength indicating circuit for high-speed limiting amplifier |
| 01/30/2013 | CN102904457A High-frequency switch power supply and high-frequency current detecting method |
| 01/30/2013 | CN102902445A Method for measuring voltage and circuit thereof |
| 01/30/2013 | CN102901875A Distribution line heat changeover auxiliary device |
| 01/30/2013 | CN102901873A Device for measuring resistive current fundamental component of zinc oxide arrester |
| 01/30/2013 | CN102901866A Vehicular automatic capacitance and inductance tester |
| 01/30/2013 | CN102901865A Motor phase current detection circuit |
| 01/30/2013 | CN102901864A Voltage detecting device |
| 01/30/2013 | CN102901863A Device and method for measuring voltage signal and current signal |
| 01/30/2013 | CN102901862A Safety control system of electric generator |
| 01/30/2013 | CN102901861A Zero-crossing detector circuit and image forming apparatus having the same |
| 01/30/2013 | CN102901860A Automatic voltage detection device |
| 01/30/2013 | CN102901859A Ferrofluid optical current sensor with horizontal bias device and method |
| 01/30/2013 | CN102901858A Current sensor |
| 01/30/2013 | CN102901857A Measuring method for step voltage and contact voltage |
| 01/30/2013 | CN102901856A Cable line arrester resistive current detection method based on phase search |
| 01/30/2013 | CN102901855A De-noising method for ultra-high-voltage direct-current corona current signal |
| 01/30/2013 | CN102901584A Temperature detection device for detecting temperature of rotor of motor |
| 01/30/2013 | CN102213736B Method and system for detecting offline state of locomotive pantograph net |
| 01/30/2013 | CN102169133B Current measurement device |
| 01/30/2013 | CN102156214B Double-light-path leakage current optical fiber sensor device |
| 01/30/2013 | CN102116792B System and method for testing chip voltage signal |
| 01/30/2013 | CN102096037B Testing system and method of high-voltage processing plate of thyristor |
| 01/30/2013 | CN102033205B System and method for detecting fault of power battery of vehicle |
| 01/30/2013 | CN101819223B Voltage and current sampling circuit and voltage and current sampling method in three-phase four-wire circuit |
| 01/30/2013 | CN101666823B Current detection method and device for LLC resonance circuit |
| 01/30/2013 | CN101398446B Temperature compensated current measuring device and battery pack using the same |
| 01/24/2013 | WO2013010834A1 Device and method for measuring a maximum cell voltage |
| 01/24/2013 | WO2013010298A1 Performance test for ferroelectric film |
| 01/24/2013 | US20130024144 Determining harmonics |
| 01/24/2013 | US20130024143 First and second voltage measurements to adjust a voltage measurer |
| 01/24/2013 | US20130024142 Quasi iso-gain supply voltage function for envelope tracking systems |
| 01/24/2013 | US20130021019 Device and method for detecting a polarity reversal on a low voltage side of a dc voltage transformer in a dual-voltage vehicle electrical system |
| 01/24/2013 | DE102011108272A1 Vorrichtung und Verfahren zum Prüfen des Vorhandenseins einer elektrischen Spannung Apparatus and method for inspecting the presence of an electrical voltage |
| 01/24/2013 | DE102011079363A1 Vorrichtung und Verfahren zur Messung einer minimalen Zellspannung Apparatus and method for measuring a minimum cell voltage |
| 01/24/2013 | DE102011079360A1 Vorrichtung und Verfahren zur Messung einer maximalen Zellspannung Apparatus and method for measuring a maximum cell voltage |
| 01/24/2013 | DE102011079326A1 Verfahren und Vorrichtung zum Überwachen einer Masseverbindung Method and apparatus for monitoring a ground connection |
| 01/23/2013 | EP2549279A2 Device and method for testing the presence of a voltage |
| 01/23/2013 | EP2548035A1 Method for measuring an electrical current and apparatus therefor |
| 01/23/2013 | CN202696941U Electroluminescent display device for high voltage measurement |
| 01/23/2013 | CN202696190U Intelligent emergent start power source with self-equipped voice prompt function |
| 01/23/2013 | CN202696149U Programming controller for high-voltage harmonic suppression |
| 01/23/2013 | CN202696127U Direct current dragging power supply feeder line unit line testing system |
| 01/23/2013 | CN202695511U Solar panel lamination platform |
| 01/23/2013 | CN202694136U Multichannel thermal control system testing equipment |
| 01/23/2013 | CN202694027U Industrial automation controller |
| 01/23/2013 | CN202693770U Automobile storage battery monitor |
| 01/23/2013 | CN202693769U Battery voltage acquisition apparatus |
| 01/23/2013 | CN202693752U Power supply IC high precision voltage test circuit |
| 01/23/2013 | CN202693723U Lightning arrester leakage current alarm system |
| 01/23/2013 | CN202693718U Grounding, leakage and overvoltage detecting and alarming device of electric system of shelter |
| 01/23/2013 | CN202693714U Portable multifunctional electricity mixing detector |
| 01/23/2013 | CN202693708U ESD (Electronic Static Discharge) high-voltage testing and leakage current measuring device |
| 01/23/2013 | CN202693703U Voltage signal conditioning circuit for online resistance spot welding quality monitoring device |
| 01/23/2013 | CN202693700U Wireless monitoring and anti-theft device for transformer |