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)
06/2010
06/02/2010CN101241148B Rain and snow preventing clectroscope possessing insulator
06/02/2010CN101236218B AC/DC converter power switch tube drain voltage detection circuit
06/02/2010CN101221225B Calibration method and device for battery voltage sampling
06/02/2010CN101216502B Wave plate temperature compensation system suitable for optical fibre current mutual inductor
06/02/2010CN101201365B System and method for measuring and analyzing voltage frequency
06/02/2010CN101187682B On-line self-adaptive harmonic current detection system
06/02/2010CN101158701B High voltage system electric voltage and insulation resistance measurement circuit
06/02/2010CN101113992B Fan testing circuit
06/02/2010CN101063694B Voltage measurement instrument
06/01/2010US7729871 Airflow detecting apparatus
06/01/2010US7728250 RF sensor clamp assembly
05/2010
05/27/2010WO2010057429A1 Apparatus for monitoring battery voltage and temperature
05/27/2010US20100131219 Digital compensator for power supply applications
05/27/2010US20100127720 Current measuring circuit
05/27/2010US20100127691 Two Pole Circuit Breaker Voltage Monitoring Integration
05/27/2010DE202010000364U1 Kontaktlose Strommessvorrichtung und Verbraucherenergiemesssystem Contactless current measuring device and consumer energy measurement system
05/27/2010DE102008058770A1 Spannungsprüfvorrichtung für Flüssigkeiten Voltage tester for liquids
05/26/2010EP2189797A2 Voltage testing apparatus for fluids
05/26/2010CN201490884U Novel voltage converting circuit
05/26/2010CN201490769U Intelligent charging management device for super capacitor
05/26/2010CN201490697U Three-phase current detection and protection circuit
05/26/2010CN201490193U Light emitting diode array structure
05/26/2010CN201490031U Integrated electricity-testing manipulator
05/26/2010CN201489997U Optical fiber current transformer
05/26/2010CN201489661U Machine room fine environment monitoring system
05/26/2010CN201489338U Measure and control device
05/26/2010CN201489105U Voltage calibration device of frictional static electricity tester
05/26/2010CN201489099U Battery monitoring intelligent fault monitoring alarm device inside DC screen
05/26/2010CN201489094U Battery electric quantity warning circuit
05/26/2010CN201489072U Closed-loop detection circuit with electricity leakage protection
05/26/2010CN201489068U DC monitoring intelligent fault monitoring alarm device inside DC screen
05/26/2010CN201489067U Module monitoring intelligent fault monitoring alarm device inside DC screen
05/26/2010CN201489066U Insulating monitoring intelligent fault monitoring alarm device inside DC screen
05/26/2010CN201489065U Online detection device for lightning arrester
05/26/2010CN201489049U Digital alternating voltage-current combination meter
05/26/2010CN201489048U Alternating current signal zero crossing time sequence precision detection device for thyristor
05/26/2010CN201489047U Three-phase combined over-voltage protection counter
05/26/2010CN201489046U AC monitoring intelligent fault monitoring alarm device inside DC screen
05/26/2010CN201489045U Leakage current detection device with controller
05/26/2010CN201489044U High-voltage electroscope
05/26/2010CN201489043U Online monitoring terminal for lightning arrester
05/26/2010CN201489042U Stray current sensor with display function
05/26/2010CN201489041U Stray current sensor with timing function
05/26/2010CN201489040U Central junction box testing apparatus
05/26/2010CN201489039U Multichannel lightning current measuring device
05/26/2010CN201489038U Flexible Roche coil for measuring impulse current
05/26/2010CN201488886U Visual experimental facility used for research on mechanism of dispersion effect of abrasive discs
05/26/2010CN201488255U Electric heater with earth wire live detection function
05/26/2010CN1302465B Adaptive sampling rate based on power system frequency
05/26/2010CN101715560A Current measuring apparatus for use with electric motors
05/26/2010CN101714818A Regulating current output from a buck converter without external current sensing
05/26/2010CN101714755A Separated outdoor high-voltage switch
05/26/2010CN101713811A System for automatically testing parameters of quartz crystal oscillator
05/26/2010CN101713794A Method for detecting poor contact of battery voltage testing terminals
05/26/2010CN101713793A Gas insulation-based DC high voltage measuring device
05/26/2010CN101191824B Power voltage detecting circuit
05/26/2010CN101089633B Voltage measuring instrument without variation
05/26/2010CN101042413B Alternating current recognition device
05/26/2010CN101042412B Electric loading switching equipment
05/26/2010CN101034112B Four measuring ranges potentiometer
05/26/2010CN101029910B Current inspecting circuit and device
05/25/2010US7725356 Network-based system for selecting or purchasing hardware products
05/25/2010US7723977 Optical sensor arrangement for electrical switchgear
05/25/2010US7723975 Current detecting circuit
05/20/2010WO2010056365A2 Method and apparatus for circuit simulation
05/20/2010WO2010055233A1 Method of monitoring the voltage of an electrical energy generating element of a battery
05/20/2010WO2010035089A3 Method and apparatus for measuring direct currents flowing in an electric line
05/20/2010US20100125429 Automatic word line leakage measurement circuitry
05/20/2010US20100123455 High voltage connector and method having integrated voltage measurement probe points
05/20/2010US20100123453 Advance manufacturing monitoring and diagnostic tool
05/20/2010US20100123133 Spin-polarised charge-carrier device
05/20/2010DE202010000328U1 Elektrischer Stromsensor Electric current sensor
05/20/2010DE102008057573A1 Capacitor arrangement e.g. lithium-ion capacitor arrangement, for use in capacitor-based energy storage, has evaluation circuit monitoring voltage lying at switch series and delivering output signal based on value of voltage
05/20/2010DE102008056211A1 Ohmic load e.g. incandescent lamp, loss detecting method, involves comparing resulting value with reference value, and detecting load loss when difference between resulting value and reference value exceeds preset value
05/20/2010DE102008043799A1 Method for error-compensated current measurement of electrical storage battery of e.g. hybrid drive, to determine charging condition of battery in e.g. passenger car, involves compensating current based on current measurement-scaling error
05/19/2010EP2187514A1 Switching power supply device
05/19/2010EP2186178A1 Protective device for protecting an electrotechnical unit and method for the operation thereof
05/19/2010CN201478884U Power supply AC sampling and collection module used for power load management terminal products
05/19/2010CN201478877U Non-contact type high-voltage detecting protection device
05/19/2010CN201478138U 集成式操作器 Integrated Operator
05/19/2010CN201477695U GSM wireless warning device used for electrical power unit
05/19/2010CN201477204U Automobile position signal transmitter
05/19/2010CN201477190U Keying circuit board test device
05/19/2010CN201477189U Device for online detecting mechanical characteristics of 24 kV high-voltage vacuum circuit breaker
05/19/2010CN201477182U Circuit board testing system device
05/19/2010CN201477175U Multifunctional test pencil
05/19/2010CN201477170U Transient power quality quick detection device
05/19/2010CN201477153U Three-phase over-current detection circuit system
05/19/2010CN201477152U Alternating current full wave zero-cross checking device
05/19/2010CN201477151U Detection warner used for integrated type electricity-check brake pull rod
05/19/2010CN201477150U Pressure monitor
05/19/2010CN201477149U Intelligent high voltage electroscope
05/19/2010CN201477148U Stray current sensor with body potential calculation function
05/19/2010CN201477147U Current detection circuit in energy feedback system
05/19/2010CN201477146U Device for testing and sorting high and low voltage PTC thermal protectors
05/19/2010CN201477145U Monitoring system for power quality
05/19/2010CN201477144U Voltage warner used for production device of aluminum foils
05/19/2010CN201477143U Power supply sampling circuit of release
05/19/2010CN201477142U Stray current sensor with communication function
05/19/2010CN201477141U Stray current sensor with data processing function
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