| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 11/24/2010 | CN201656565U Voltage detecting module |
| 11/24/2010 | CN201656489U Multifunctional electrical distribution monitoring and reactive compensation controlling analysis system |
| 11/24/2010 | CN201656469U Lightning protection box with surge wave recording function |
| 11/24/2010 | CN201654196U Battery sampling device |
| 11/24/2010 | CN201654159U Short-circuit and earth-fault indicator |
| 11/24/2010 | CN201654155U Power quality monitoring management terminal |
| 11/24/2010 | CN201654145U Feed monitor used for coal mine high-voltage switch cabinet |
| 11/24/2010 | CN201654144U Earth leakage protective device tester |
| 11/24/2010 | CN201654127U Versatile electric energy measuring instrument |
| 11/24/2010 | CN201654122U Mobile-type base-wave/harmonic-wave load measurement measuring device |
| 11/24/2010 | CN201654118U Electricity quality detecting device |
| 11/24/2010 | CN201654117U Novel zero crossing detection circuit |
| 11/24/2010 | CN201654116U High-low voltage overcurrent and open-phase remote warner of distribution transformer |
| 11/24/2010 | CN201654115U Overvoltage monitoring device for power grid |
| 11/24/2010 | CN201654114U Multifunctional electrification detecting pen for maintenance of electric instruments and equipment |
| 11/24/2010 | CN201654113U Induction type high-voltage electrified display device |
| 11/24/2010 | CN201654112U Non-contact line hunting testing electroprobe |
| 11/24/2010 | CN201654111U Electroscope with contact electrode extension section |
| 11/24/2010 | CN201654110U Device for measuring relative voltage |
| 11/24/2010 | CN201654109U Current sampling circuit of fully-digital alternating current servo driver |
| 11/24/2010 | CN201654108U Rail current sensor |
| 11/24/2010 | CN201654107U Online monitor for explosion-proof type lightning arrester |
| 11/24/2010 | CN201654106U Multiple-group electric-power measurement transmission device with full-time and multiplex time-sharing measurement |
| 11/24/2010 | CN201654105U Current detecting resistor |
| 11/24/2010 | CN201654104U Two-range voltage measuring device with four measuring discs |
| 11/24/2010 | CN201653544U Laser ageing detection device |
| 11/24/2010 | CN201646769U Railway vehicle wheel sensor detecting instrument |
| 11/24/2010 | CN201641586U Improved pressure switch detection device for electric pressure cooker |
| 11/24/2010 | CN201640608U Step voltage alarm shoes |
| 11/24/2010 | CN101895399A Control method of data card and data card |
| 11/24/2010 | CN101895336A Monitoring circuit, method for outputting monitor signal, and optical receiver |
| 11/24/2010 | CN101895098A Protecting-two-of-three redundancy monitoring circuit |
| 11/24/2010 | CN101895094A Method for measuring and calculating overload protection setting value of high-voltage motor |
| 11/24/2010 | CN101895089A High voltage electriferous display locking device based on fundamental wave and phase |
| 11/24/2010 | CN101894530A Driving circuit and protection method thereof, light-emitting device and display device |
| 11/24/2010 | CN101893670A Photoelectric measurement system for high-voltage direct current power transmission converter valve |
| 11/24/2010 | CN101893663A Test device for electrical control and protection system |
| 11/24/2010 | CN101893656A Voltage detection circuit and voltage detection and correction method thereof |
| 11/24/2010 | CN101893655A Digital optical current sensor |
| 11/24/2010 | CN101893654A Method and system for measuring transient overvoltage of high voltage power network through distribution capacitance method |
| 11/24/2010 | CN101893653A Liquid crystal voltage measuring test pencil |
| 11/24/2010 | CN101893652A Method for detecting harmonic wave and reactive current based on spatial transformation of voltage vectors |
| 11/24/2010 | CN101893651A Method for detecting positive sequence, negative sequence, idle and harmonic currents of power supply system |
| 11/24/2010 | CN101893650A Voltage measurement device for high-voltage direct-current power transmission valve assembly |
| 11/24/2010 | CN101893649A Sensor having flat combining part and adapted connector |
| 11/24/2010 | CN101376983B Cathodic protection apparatus having sacrificial anode current output monitoring function and manufacturing method thereof |
| 11/24/2010 | CN101359002B Potential difference meter using sliding disk |
| 11/24/2010 | CN101173979B Calibration device for dielectric oil dielectrical strength tester |
| 11/23/2010 | US7839616 Load current sensing technique |
| 11/23/2010 | US7839137 Distributed RF/microwave power detector |
| 11/23/2010 | US7839133 Remote continuity and cable identifier and polarity checker system and method |
| 11/18/2010 | US20100292943 State Estimator for Rejecting Noise and Tracking and Updating Bias in Inertial Sensors and Associated Methods |
| 11/18/2010 | US20100290167 Control circuit for controlling a semiconductor switch system |
| 11/18/2010 | US20100289551 Increased reliability in the processing of digital signals |
| 11/18/2010 | US20100289519 Circuit for detecting faulty diode |
| 11/18/2010 | US20100289481 Apparatus and method for dc voltage measurement |
| 11/18/2010 | DE102009021153A1 Verfahren zur Gewinnung einer Feldstärkeinformation A process for obtaining a field strength information |
| 11/18/2010 | DE102009020341A1 Integrated electronic device, particularly embedded micro controller system, has load detection stage, which is designed such that it generates alternating input voltage, which is applied on contact point of integrated electronic device |
| 11/17/2010 | EP2251702A1 Cabling test device |
| 11/17/2010 | CN201639494U Power supply device |
| 11/17/2010 | CN201639303U Energy-saving control circuit with capacitance compensation for oil pumping unit |
| 11/17/2010 | CN201639280U Microcomputer bus protector automatically identifying running ways of bus |
| 11/17/2010 | CN201638439U Full-metering simulation device |
| 11/17/2010 | CN201638339U Residual current type electrical fire monitor |
| 11/17/2010 | CN201637831U State monitoring and malfunction diagnosing system for large generator |
| 11/17/2010 | CN201637828U Automatic detecting system of electric bicycle |
| 11/17/2010 | CN201637817U Test system |
| 11/17/2010 | CN201637811U Voltage resistant puncture totalizing tester of electrical heated tube |
| 11/17/2010 | CN201637804U Electric toy safety performance detecting instrument |
| 11/17/2010 | CN201637793U Tester of reversed current protector |
| 11/17/2010 | CN201637791U Online monitoring system for high-voltage shunt capacitor |
| 11/17/2010 | CN201637790U Analog converter test bench |
| 11/17/2010 | CN201637789U On-line monitor tele-transferring device for arrester and monitoring system thereof |
| 11/17/2010 | CN201637783U Harmonic wave detection device |
| 11/17/2010 | CN201637778U Power factor sampling and compensating device |
| 11/17/2010 | CN201637777U Device for detecting winding voltage of switch reluctance motor |
| 11/17/2010 | CN201637776U Insulating rod for checking electricity |
| 11/17/2010 | CN201637775U Test pencil with self-test function |
| 11/17/2010 | CN201637774U Thunder-lightening recorder |
| 11/17/2010 | CN201637773U Collecting circuit of true effective value of multi-path alternating current signals |
| 11/17/2010 | CN201637772U Remote fault diagnosis system for infrared shaft temperature detection station |
| 11/17/2010 | CN201637771U Test box and test system |
| 11/17/2010 | CN201635734U Feeble signal detector |
| 11/17/2010 | CN101888730A Alternating current constant current source LED driving circuit |
| 11/17/2010 | CN101888082A Residual current protector |
| 11/17/2010 | CN101887652A High sensitive voltmeter |
| 11/17/2010 | CN101887621A Monitoring protector of electrical fire |
| 11/17/2010 | CN101887242A Power supply system |
| 11/17/2010 | CN101887102A Method for detecting solar cell failure |
| 11/17/2010 | CN101887084A Energy consumption monitoring instrument |
| 11/17/2010 | CN101887079A Non-contact high-sensitivity electricity measurer |
| 11/17/2010 | CN101887078A Magnetoelectric multimeter for laser electrostatic measurement |
| 11/17/2010 | CN101887077A Laser projected scale system |
| 11/17/2010 | CN101294989B Three-phase optical fiber electric mutual inductor |
| 11/17/2010 | CN101187679B Current measuring circuit for two phase electromotor |
| 11/17/2010 | CN101059547B Diagnostic signal processor |
| 11/17/2010 | CN101038306B Device for online monitoring and overcurrent limiting power transformer iron core grounding current |
| 11/16/2010 | US7834692 Peak detector with active ripple suppression |
| 11/11/2010 | WO2010128069A1 Wiring testing device |
| 11/11/2010 | US20100287604 Identification of integrated circuits |