Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
05/2010
05/19/2010CN201477140U Socket current display and warning device
05/19/2010CN201477139U Online monitoring system for running state of power facility based on laser pumps
05/19/2010CN201477124U Voltage quality monitor installation box convenient for observation
05/19/2010CN201476941U Device for dynamic and static balance detection and warning of cooling fan of motor vehicle
05/19/2010CN1975454B Electromagnetic coefficient tester for electromagnetic material and testing method thereof
05/19/2010CN1959419B Current measurement instrument
05/19/2010CN101710686A Electronic trip unit of a circuit breaker
05/19/2010CN101710152A Differential mode hollow core coil current sensor
05/19/2010CN101710151A Extra-high voltage direct current non-contact multi-channel electricity checking method
05/19/2010CN101710150A Interlocking method for carrying out direct electricity check to cable chamber of high voltage switch cabinet
05/19/2010CN101710149A System for measuring current density of oil gas pipeline
05/19/2010CN101710148A Current transformer and current detection system
05/19/2010CN101710147A Method to estimate the output current of an automotive generator
05/19/2010CN101710134A Vehicle hub rotation speed sensor electrical parameter test device and test method
05/19/2010CN101709995A Methods for vibration online monitoring and fault diagnosis of power transformer
05/19/2010CN101271142B Peak detection circuit integrated on CMOS single chip
05/19/2010CN101159373B Optical fiber longitudinal differential protecting equipment based on multiple terminals self-adapting sample-taking synchronization process
05/19/2010CN101038305B Array giant magnetic impedance effects current sensor
05/18/2010US7720621 Application of multiple voltage droop detection
05/18/2010US7719255 Safe input circuit with one-channel peripheral connection for the input of a bus participant
05/18/2010US7719253 Apparatus for verifying a low noise block output voltage
05/14/2010WO2010053744A1 Rms metering devices and methods
05/14/2010WO2010053326A2 Apparatus and method for synchronizing and measuring the current and voltage of a secondary battery pack
05/14/2010WO2010052278A1 Circuit for measuring the efficient current of a signal to be monitored
05/14/2010WO2010051810A1 Grid monitoring system and related method
05/14/2010WO2010022700A3 Arrangement for measuring at least one value of a voltage applied to an electronic component
05/13/2010US20100121593 In-situ characterization of a solid-state light source
05/13/2010US20100118491 Portable high-voltage test instrument with housing
05/13/2010US20100117623 System and method of determining maximum power point tracking for a solar power inverter
05/12/2010EP2184587A1 Method and apparatus for time synchronization of events for multiple instruments
05/12/2010DE102005047894B4 Verfahren zur Prüfung der Betriebsfähigkeit von Messumformern Method for testing the operability of transmitters
05/12/2010CN201467243U UPS commercial power interruption warning device
05/12/2010CN201466671U Oil depot electric spark protection device
05/12/2010CN201466500U Multifunctional intelligent power distribution box
05/12/2010CN201466441U Power supply device with wireless metering function
05/12/2010CN201465936U Digital combined breaker with functions of measuring and protecting voltage and current
05/12/2010CN201465782U Electronic voltage transducer
05/12/2010CN201465688U Intelligentized lightening arrestor
05/12/2010CN201465188U Automatic parking fee collection system based on radio frequency identification technology
05/12/2010CN201464623U Circuit by using protecting chip and diodes to realize overcurrent detection
05/12/2010CN201464621U Lithium-sulfur dioxide battery manometer
05/12/2010CN201464601U Electric fault indicator with functions of current displaying and fault recording
05/12/2010CN201464600U Self-powered power failure indicator
05/12/2010CN201464579U Generator insulation over-temperature monitoring device
05/12/2010CN201464576U Device for checking local discharge failures of capacitor
05/12/2010CN201464570U Test system of high-voltage converter
05/12/2010CN201464568U Portable switch machine tester
05/12/2010CN201464554U Electric energy meter with voltage monitoring function
05/12/2010CN201464551U Electronic transducer working power supply self-power-supplying horizontal tester
05/12/2010CN201464550U Channel management-type test device for fuel cell stack pieces voltage
05/12/2010CN201464549U Loss-of-excitation protection auxiliary distinguishing element based on measured value of generator stator circuit
05/12/2010CN201464548U Lightning protection counting device
05/12/2010CN201464547U Voltage monitor
05/12/2010CN201464546U Device for intelligently monitoring VFTO inside GIS
05/12/2010CN201464545U Circuit structure for high precision voltage indicator
05/12/2010CN201464544U Electric power intelligent display control transmitter
05/12/2010CN201464543U Portable high-voltage electroscope
05/12/2010CN201464542U Medium-high voltage potential indicator
05/12/2010CN201464541U Aluminum cell anode current on-line test instrument
05/12/2010CN201464540U Test pencil with illumination function
05/12/2010CN201464539U Lightening current sensor with changed structure
05/12/2010CN201464538U Lightning waveform monitoring system in electric transmission line conducting wire
05/12/2010CN201464537U Device for measuring secondary current in power system
05/12/2010CN201464536U Ethernet type voltage monitoring instrument suitable for transformer substation
05/12/2010CN201464535U Portable passive broadband level meter
05/12/2010CN201464534U Monitoring device for lightning travelling wave in transmission line
05/12/2010CN201464533U Testing device of electric current and voltage of rotating shaft
05/12/2010CN201464532U Comprehensive measuring instrument of electric appliance
05/12/2010CN201464531U Current measurement instrument
05/12/2010CN201464530U Current sensor
05/12/2010CN201464529U General differential action acquisition circuit of voltage, current or resistance analog quantity
05/12/2010CN201464197U Automatic valve testing device
05/12/2010CN201463964U Wireless long-transmission combination water meter
05/12/2010CN201460881U Device of continuous current judgment oil extraction well wax period
05/12/2010CN201455508U Device for measuring arc pressure distribution and current density distribution
05/12/2010CN1975446B Silicon controlled trigger current detection prewarning circuit
05/12/2010CN1956334B Low voltage detection circuit
05/12/2010CN1948980B Remote short circuit multi-phase detecting method and detecting device thereof
05/12/2010CN1908682B Circuit for detecting input voltage of transformers
05/12/2010CN1877346B Indoor high-voltage charge display device
05/12/2010CN1876256B Battery screening system and method
05/12/2010CN1848019B Constant voltage power supply circuit and method of testing the same
05/12/2010CN1847861B Coil current sensor with magnetic core
05/12/2010CN1844937B High-sensitivity MEMS photoelectric galvanometer, making and detecting method thereof
05/12/2010CN1717865B System and method for reducing transfer function ripple in a logarithmic RMS-to-DC converter
05/12/2010CN1690721B Circuit and method for high speed sensing
05/12/2010CN101707441A Totem-pole bridgeless circuit system and current sampling device
05/12/2010CN101707352A Method and device thereof for fault detection/protection for SVC system
05/12/2010CN101707344A Signal acquisition controller
05/12/2010CN101706560A Magnetic field sensing system using spin-torque diode effect
05/12/2010CN101706551A Testing circuit for forecasting failure of back bias voltage unstability of integrated circuit
05/12/2010CN101706537A PEA space charge test device capable of testing conductive current
05/12/2010CN101706528A Insulator voltage online measurement sensor for power transmission line
05/12/2010CN101706527A Method for detecting arc faults based on time-frequency characteristics of high-frequency current component
05/12/2010CN101706526A Measuring method and device of pulse width detection type magnetic modulation direct current
05/12/2010CN101706524A Data collection device and data collection method thereof
05/12/2010CN101162242B Method for testing direct current by quadrature transformer
05/12/2010CN101149889B Display signal detecting device and method
05/12/2010CN101105518B Semiconductor device creepage detection method
05/12/2010CN101074972B Capacitance mask resistance sensor
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