| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 09/11/2013 | CN203191441U Alternating current zero-cross detection circuit |
| 09/11/2013 | CN203191440U Zero-crossing detection circuit of photovoltaic inverter |
| 09/11/2013 | CN203191439U Battery undervoltage detecting circuit |
| 09/11/2013 | CN203191438U Human safety protector |
| 09/11/2013 | CN203191437U Intelligent power-supply charging notifier |
| 09/11/2013 | CN203191436U Over-current detection circuit applied on wind power generation current transformer |
| 09/11/2013 | CN203191435U Electric leakage monitoring socket apparatus |
| 09/11/2013 | CN203191434U Leakage current tester |
| 09/11/2013 | CN203191433U Current detection clamp |
| 09/11/2013 | CN203191432U Voltage monitoring device of photovoltaic direct-current lightning protection cabinet |
| 09/11/2013 | CN203191431U Direct-current component sampling circuit of photovoltaic inverter |
| 09/11/2013 | CN203182109U Electric shock prevention safety helmet |
| 09/11/2013 | CN103299357A 等离子显示装置 Plasma display apparatus |
| 09/11/2013 | CN103299199A Transient recovery voltage measuring device, transient recovery voltage measuring method, and transient recovery voltage measuring program |
| 09/11/2013 | CN103293479A Battery safety protection device and testing method thereof |
| 09/11/2013 | CN103293437A Method for extracting stator winding current features during turn-to-turn fault of synchronous generator rotor |
| 09/11/2013 | CN103293415A Mini-inverter fault detecting method based on neural network expert system |
| 09/11/2013 | CN103293400A Lightning arrester direct current test system |
| 09/11/2013 | CN103293370A Voltage-temperature integrated testing device of storage battery set |
| 09/11/2013 | CN103293369A Monitoring device and method for employing the monitoring device to monitor line section |
| 09/11/2013 | CN103293368A Device and method for scanning a signal and measuring instrument |
| 09/11/2013 | CN103293367A Detection method of flame ionic current size and grounding alternating current power supply |
| 09/11/2013 | CN103293366A Half-bridge driving apparatus |
| 09/11/2013 | CN103293365A Universal accumulator under-voltage alarm |
| 09/11/2013 | CN103293364A Optical fiber current sensor |
| 09/11/2013 | CN103293363A Time delay compensation method for mutual inductor sampling value |
| 09/11/2013 | CN103293362A Direct-current ammeter and multimeter and measuring method by using ammeter or multimeter |
| 09/11/2013 | CN103293361A Temperature-compensable current sensor based on double magnetic circuits and current detection method of current sensor |
| 09/11/2013 | CN103293360A Array-type current sensor for measuring grounding broken currents and data collection system |
| 09/11/2013 | CN103293359A 电流检测电路 A current detecting circuit |
| 09/11/2013 | CN103293358A Current detecting module for variable-frequency speed controller |
| 09/11/2013 | CN103293357A Device for measuring the no-load voltage of a battery |
| 09/11/2013 | CN103293356A Voltage monitoring apparatus and method |
| 09/11/2013 | CN103293355A Voltage measuring circuit |
| 09/11/2013 | CN103293342A Probe voltage setting method and point measurement method and system applying the probe voltage setting method |
| 09/11/2013 | CN103289896A Field effect tissue culture dish system and application |
| 09/11/2013 | CN102508001B Current detecting device for ship stern shaft |
| 09/11/2013 | CN102435885B Method, equipment and system for detecting actuating voltage of track switch machine |
| 09/11/2013 | CN102346210B System on chip (SOC) for detecting voltage of underwater sound sensor |
| 09/11/2013 | CN102341717B General purpose protocol engine |
| 09/11/2013 | CN102338769B On-line measuring method of water content in membranes of proton exchange membrane fuel cells |
| 09/11/2013 | CN102055310B Power supply unit with functions of open loop protection and short circuit protection |
| 09/10/2013 | US8532947 Method of identifying an integrated circuit and corresponding integrated circuit |
| 09/10/2013 | US8531179 Method and device for the detection of current asymmetries in three-phase circuits |
| 09/10/2013 | US8531175 Monitoring device for an electric power system |
| 09/06/2013 | WO2013128234A1 Method of detecting irregular current flow in an integrated circuit device and apparatus therefor |
| 09/06/2013 | DE202012102032U1 Messinstrument, insbesondere Spannungsprüfer Measuring instrument, in particular voltage tester |
| 09/05/2013 | US20130229737 Integrated circuit device and method for detecting an excessive voltage state |
| 09/05/2013 | US20130229161 Modulating determination apparatus, modulating determination method, and power supply circuit thereof |
| 09/05/2013 | DE102013203545A1 Schalterausfall-Erfassungsvorrichtung und Verfahren zum Erfassen eines Ausfalls eines elektronischen Schalters Switch failure detecting apparatus and method for detecting a failure of an electronic switch |
| 09/05/2013 | DE102005024643B4 Abtastschaltung Sampling |
| 09/04/2013 | EP2634883A2 Electronic device and protection circuit and protection method |
| 09/04/2013 | EP2634589A1 Battery wake-up |
| 09/04/2013 | CN203181239U Ground wire remote monitor node based on WSN technology |
| 09/04/2013 | CN203180629U Double-detection device of DC power supply of transformer station |
| 09/04/2013 | CN203178452U State monitoring device for photovoltaic battery pack string |
| 09/04/2013 | CN203178424U Distributed microcomputer discharge recorder based on ZigBee networking technology |
| 09/04/2013 | CN203178360U Three-phase alternating current voltage signal acquisition circuit |
| 09/04/2013 | CN203178359U Voltage monitor with security encryption chip |
| 09/04/2013 | CN203178358U Voltage quality monitoring analyzer with infrared ray induction apparatus |
| 09/04/2013 | CN203178357U Voltage quality monitoring analyzer with wireless monitoring system |
| 09/04/2013 | CN203178356U Voltage quality monitoring analyzer with heat radiation apparatus |
| 09/04/2013 | CN203178355U Voltage quality monitoring analyzer with intelligent control system |
| 09/04/2013 | CN203178354U Three-phase AC electronic quantities detection circuit suitable for one-chip microcomputer |
| 09/04/2013 | CN203178353U Alternating current collecting circuit applied to electric power monitoring system |
| 09/04/2013 | CN203178352U Stray current tester for buried steel pipeline |
| 09/04/2013 | CN203178351U Apparatus for detecting zero-crossing point of power grid voltage |
| 09/04/2013 | CN203178350U Overvoltage on-line monitoring system |
| 09/04/2013 | CN203178349U Handheld voltage and current meter based on STM32 |
| 09/04/2013 | CN203178348U Large-aperture leakage current clamp meter |
| 09/04/2013 | CN203178347U Current signal acquisition circuit |
| 09/04/2013 | CN203178346U Data acquisition apparatus used for optical current transformer |
| 09/04/2013 | CN203178345U Sampling circuit used for energy storage cell parameter online detection |
| 09/04/2013 | CN203178344U Direct current voltage signal acquisition circuit |
| 09/04/2013 | CN203178343U On-line monitoring system for grounding current flowing through metal sheath of power cable |
| 09/04/2013 | CN203178342U AC-DC general millivoltmeter circuit |
| 09/04/2013 | CN203178341U Voltage collection system |
| 09/04/2013 | CN203178340U Simple multipath current tester |
| 09/04/2013 | CN203178339U Sampling device for leakage current of arrester of switch cabinet |
| 09/04/2013 | CN203178338U Leakage current monitoring device |
| 09/04/2013 | CN203178337U All-optical fiber current transformer sensing head |
| 09/04/2013 | CN203175495U Buzz-prompting drilling machine for trenchless construction |
| 09/04/2013 | CN103283111A Voltage monitoring circuit, and vehicle equipped with same |
| 09/04/2013 | CN103280980A Digital power supply device for leakage protector detection system |
| 09/04/2013 | CN103280771A Motor controller overcurrent judgment and protection circuit |
| 09/04/2013 | CN103280734A High-voltage brake pull-rod capable of measuring temperature and load current |
| 09/04/2013 | CN103278776A Electric automobile battery insulation detecting system |
| 09/04/2013 | CN103278680A Current transformer based on optical fiber optical gratings and magnetostriction materials and capable of achieving temperature compensation and current detection method thereof |
| 09/04/2013 | CN103278679A Comparison circuit for electric energy measuring chip |
| 09/04/2013 | CN103278678A Lightning overvoltage measuring system |
| 09/04/2013 | CN103278677A Direct-current signal acquisition circuit and signal processing method thereof |
| 09/04/2013 | CN103278676A Electric current true virtual value detection circuit of electromotor soft starter |
| 09/04/2013 | CN103278675A Circuit used for acquiring signal during remote monitoring conducted on distribution transformer |
| 09/04/2013 | CN103278674A Electric current monitoring circuit and method |
| 09/04/2013 | CN103278673A System and method for testing overcurrent value of power protection plate |
| 09/04/2013 | CN103278672A Signal acquisition circuit used in distribution transformer remote monitoring system |
| 09/04/2013 | CN102495260B Temperature drift compensation optical current transformer and current compensation method thereof |
| 09/04/2013 | CN102419393B Current sensor |
| 09/04/2013 | CN102401853B Double-shaft fluxgate current sensor |
| 09/04/2013 | CN102313835B Method for measuring electric parameter of gallium arsenide pseudomorphic HEMT (high electron mobility transistor) material |