| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 02/03/2010 | CN201398080Y Low-voltage distribution network load measuring-recording and powerless regulating device |
| 02/03/2010 | CN201397381Y Novel voltage internal resistance testing device for lithium ion battery |
| 02/03/2010 | CN201397380Y 电池测试电路 Battery test circuit |
| 02/03/2010 | CN201397359Y Metering and monitoring module for electric power remote terminal unit |
| 02/03/2010 | CN201397358Y Precise intelligent load monitor |
| 02/03/2010 | CN201397357Y Wide-aperture direct current leakage current detection sensor |
| 02/03/2010 | CN201397230Y SFP light receiving-emitting module test evaluation circuit board |
| 02/03/2010 | CN101639498A High-voltage grounding on-line monitor |
| 02/03/2010 | CN101639497A Static estimating method of maximum overturning electric current in distributed sleep tube power gate control circuit |
| 02/03/2010 | CN101639496A Method and system for testing current consumption |
| 02/03/2010 | CN101639495A Method for testing action current of solenoid valve |
| 02/03/2010 | CN100587503C Four-range voltage measuring instrument |
| 02/03/2010 | CN100587502C Voltage measuring instrument with multiple range and high resolution |
| 02/03/2010 | CN100587501C Voltage measuring instrument |
| 02/02/2010 | US7655900 Intensity modulation type optical sensor and optical current/voltage sensor |
| 01/28/2010 | WO2010011475A1 Isolated current sensor |
| 01/28/2010 | WO2009144129A3 Method for determining the offset of a periodic signal |
| 01/28/2010 | US20100019915 Industrial universal electrometer |
| 01/28/2010 | US20100019803 Oscillation detection circuit |
| 01/28/2010 | US20100019755 Cable tracing system and method for cable management |
| 01/27/2010 | CN201393174Y Direct current source supply |
| 01/27/2010 | CN201393051Y Circuit breaker with protection function |
| 01/27/2010 | CN201393050Y Anti-electric shock device of household appliance |
| 01/27/2010 | CN201392959Y Electric-energy measuring wall socket with time control and communication functions |
| 01/27/2010 | CN201392732Y Charged measuring and installing device of transformer core grounding resistance |
| 01/27/2010 | CN201392388Y Single body voltage on-line monitoring device for accumulator battery |
| 01/27/2010 | CN201392386Y High-voltage direct current resistance testing pliers with induction electrical alarm |
| 01/27/2010 | CN201392384Y Leak current protective plate tester for lithium battery |
| 01/27/2010 | CN201392372Y On-line monitoring and wireless remote transmission device of lightning arrester |
| 01/27/2010 | CN201392364Y Buzzing type electroprobe |
| 01/27/2010 | CN201392363Y Current peak value sampling circuit |
| 01/27/2010 | CN201392362Y Electric current measurement device |
| 01/27/2010 | CN201392361Y AC/DC voltmeter and ammeter based on single chip microcomputer and optical coupler and sampling circuit |
| 01/27/2010 | CN201392360Y Electric multi-parameter measuring device |
| 01/27/2010 | CN201392359Y Current difference detection sampling circuit |
| 01/27/2010 | CN201392357Y Electronic element package structure of electric current sensor |
| 01/27/2010 | CN101634669A Apparatus and method for detecting harmonic current |
| 01/27/2010 | CN101634668A Current sensing for a multi-phase dc/dc boost converter |
| 01/27/2010 | CN101634667A Method and circuit for measuring average current of direct current motor |
| 01/27/2010 | CN101634666A Ultra-high current Hall detection method and device |
| 01/27/2010 | CN101634665A Marginal voltage value testing device |
| 01/26/2010 | US7652505 Level conversion circuit for converting voltage amplitude of signal |
| 01/21/2010 | WO2009138694A3 Line of propagation digitizing device |
| 01/21/2010 | WO2009129273A3 Techniques for measuring voltages in a circuit |
| 01/21/2010 | WO2009124292A3 Power management connection devices and related methods |
| 01/21/2010 | US20100014203 Monitoring Method, Circuit, and System |
| 01/21/2010 | US20100013458 Semiconductor Device For Measuring Ultra Small Electrical Currents And Small Voltages |
| 01/21/2010 | US20100013457 Power Line Takeoff Clamp Assembly |
| 01/21/2010 | DE102008033428A1 Direct current voltage source's voltage measuring method for intermediate circuit in e.g. hybrid vehicle, involves indirectly measuring voltage that is induced in one of inductors of one of electric circuits by measuring device |
| 01/20/2010 | EP2145194A2 Adaptive filters for fiber optic sensors |
| 01/20/2010 | CN201387476Y Soft package lithium ion battery leakage detection device |
| 01/20/2010 | CN201387473Y Analog quantity signal transducer |
| 01/20/2010 | CN201387447Y Automatic test device for testing current of mobile phone |
| 01/20/2010 | CN201387446Y Measuring circuit structure for high-frequency high-voltage source |
| 01/20/2010 | CN201387445Y DC voltage test pen |
| 01/20/2010 | CN201387442Y Digital double-clamp phase volometer |
| 01/20/2010 | CN101629975A Relay contact-voltage measuring and conditioning circuit and measuring method |
| 01/20/2010 | CN101629974A Portable passive broadband electric level meter |
| 01/20/2010 | CN101629973A High-precision current sampling circuit without operational amplifier for low voltage power supply |
| 01/20/2010 | CN100582808C Measurement method of ferroelectric materials electric hysteresis loop wire |
| 01/20/2010 | CN100582806C Low power consumption electric source monitoring circuit |
| 01/20/2010 | CN100582805C Apparatus and method for detecting voltage of assembled battery |
| 01/20/2010 | CN100582790C Caking and flaking detection method and detection device in polypropylene production |
| 01/20/2010 | CN100582789C Compensation coil device for high temperature superconductive magnet test |
| 01/19/2010 | US7649356 Pulse induction metal detector having high energy efficiency and sensitivity |
| 01/19/2010 | US7649347 Method and apparatus to evaluate notches in an electrical power system |
| 01/14/2010 | WO2010006224A1 Single-supply single-ended high voltage peak detector |
| 01/14/2010 | WO2010006221A2 Low power radio communication system |
| 01/14/2010 | WO2010003360A1 A multi-channel current sampling apparatus and method for solenoid valve |
| 01/14/2010 | WO2009120765A9 Method and apparatus for analyzing waveform signals of a power system |
| 01/14/2010 | US20100007344 MTJ based magnetic field sensor with ESD shunt trace |
| 01/14/2010 | US20100007335 Measuring Apparatus |
| 01/14/2010 | US20100007334 Power sourcing equipment device and method of providing a power supply to a powered device |
| 01/14/2010 | US20100007328 Power switch with an overcurrent protection device |
| 01/14/2010 | US20100007327 Measurement apparatus, test apparatus and measurement method |
| 01/14/2010 | DE102008040278A1 Prüfgerät sowie Verfahren zum Prüfen von elektrischen Leitungen eines elektrischen Verbrauchers eines Kraftfahrzeugs Test instrument and method for testing electrical lines of an electrical load of a motor vehicle |
| 01/14/2010 | CA2730249A1 Single-supply single-ended high voltage peak detector |
| 01/13/2010 | CN201383670Y Digital-type intelligent malignant load recognizer |
| 01/13/2010 | CN201383634Y One-time zero current detection for DC manual isolation switch cabinet and system structure of electromagnetic lock |
| 01/13/2010 | CN201383514Y Adjustable-type non-polar cell box |
| 01/13/2010 | CN201382996Y Internal current measuring device of fuel cell |
| 01/13/2010 | CN201382974Y Power measurement device for variable-frequency power supply |
| 01/13/2010 | CN201382972Y 户内高压带电显示装置 Indoor high-voltage electric display device |
| 01/13/2010 | CN201382971Y Novel test pencil |
| 01/13/2010 | CN201382970Y Lightning full-parameter measuring system for ultrahigh-voltage transmission line |
| 01/13/2010 | CN201382850Y Test device for liquid crystal display module |
| 01/13/2010 | CN201380193Y Rolled steel alternating current main motor working current checking and displaying device |
| 01/13/2010 | CN101625382A Method for continuously tracking and measuring grounding current of automatic compensating device of arc suppression coil |
| 01/13/2010 | CN101625381A Fuzzy evaluation method of voltage sags |
| 01/13/2010 | CN101625380A Sensor for high voltage environment |
| 01/13/2010 | CN101625379A Lighting current sensor in modified structure |
| 01/13/2010 | CN101625378A Electric quantity detection device and detection method thereof used for magnetic capacitance device |
| 01/13/2010 | CN100580464C Large-scale grounding network detection technology and detection system for power plant and transformer substation |
| 01/13/2010 | CN100580462C Switch tube voltage zero-crossing detection system and method |
| 01/13/2010 | CN100580461C Potential comparator |
| 01/13/2010 | CN100580460C Accumulator current sensor for automobile |
| 01/13/2010 | CN100580458C Voltage check device for gas insulation apparatus |
| 01/12/2010 | US7646192 Compensation of simple fibre optic Faraday effect sensors |
| 01/07/2010 | WO2010002144A2 Battery cell interconnection and voltage sensing assembly, and method for connecting battery cell assembly to the same |
| 01/07/2010 | WO2009138539A3 Positive peak detector |