| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 06/05/2013 | CN202975141U Range-adaptive digital voltmeter |
| 06/05/2013 | CN202975140U Leakage-current detection system for switch-cabinet lightning arrester |
| 06/05/2013 | CN202975139U Analog quantity acquisition device for photovoltaic inverter |
| 06/05/2013 | CN202975138U Terminal device for performing wave recording on voltage to earth of direct current buses |
| 06/05/2013 | CN202975137U Matrix series data acquisition monitoring unit |
| 06/05/2013 | CN202975136U Current acquisition device |
| 06/05/2013 | CN202975135U Zero-cross detection circuit with low standby power consumption |
| 06/05/2013 | CN202975134U Wave recording device and reactive power compensation system |
| 06/05/2013 | CN202975133U Operating current reading circuit apparatus of ultrasonic wave generator |
| 06/05/2013 | CN202975132U Alarming device for abnormal voltage of transformer |
| 06/05/2013 | CN202975131U High-voltage electrical inspection and phase verification mechanism of switch cabinet intelligent operation display device |
| 06/05/2013 | CN202975130U Power grid blackout detecting and rod lifting circuit and blackout and rod lifting control system for railing machine |
| 06/05/2013 | CN202975129U Rain- and snow-proof high-voltage acousto-optic electroscope |
| 06/05/2013 | CN202975128U A portable multifunctional electricity testing pen |
| 06/05/2013 | CN202975127U Portable safe high-voltage electroscope |
| 06/05/2013 | CN202975126U Transmission line load indicating device |
| 06/05/2013 | CN202975125U Auxiliary electricity testing device for grounding |
| 06/05/2013 | CN202975124U Peak detection apparatus for leakage resistive current |
| 06/05/2013 | CN202975123U Circuit for simultaneous monitoring residual current and breaker work state on same loop |
| 06/05/2013 | CN202975122U Buffering and isolation function-equipped current signal collection circuit for electric fire monitor |
| 06/05/2013 | CN202975121U Embedded testing-based PXIe rear panel |
| 06/05/2013 | CN202975120U Current clamp and electric energy quality monitoring device |
| 06/05/2013 | CN202975119U Resistive-current separating apparatus for leakage current |
| 06/05/2013 | CN202975118U Full-current frequency conversion apparatus for leakage current |
| 06/05/2013 | CN202975117U Capacitive-current separating apparatus for leakage current |
| 06/05/2013 | CN202975116U Zero-sequence current measurement circuit for microcomputer protection device |
| 06/05/2013 | CN202975115U Improved voltage monitor |
| 06/05/2013 | CN202975114U Mounting structure of voltage detector specific box |
| 06/05/2013 | CN202975113U On-line current monitor for power transmission and distribution line |
| 06/05/2013 | CN202975112U Microcurrent detection device |
| 06/05/2013 | CN202975111U Arrester discharge current monitoring device |
| 06/05/2013 | CN202975070U Probe of oscilloscope |
| 06/05/2013 | CN103140763A Systems, methods, and devices for analyzing utility usage with load duration curves |
| 06/05/2013 | CN103139976A Circuit of light-emitting diode (LED) fluorescent lamp |
| 06/05/2013 | CN103138761A Analog-digital conversion circuit and battery voltage detection circuit |
| 06/05/2013 | CN103138659A Motor drive apparatus having power failure detection unit for determining presence or absence of power failure |
| 06/05/2013 | CN103138230A Machine shell leakage protection circuit and road traffic signal control machine using protection circuit |
| 06/05/2013 | CN103138188A Alarming type insulating bar |
| 06/05/2013 | CN103137933A Battery unit |
| 06/05/2013 | CN103135038A Alternative current electric crosstalk and insulation fault monitoring line selection method of direct current system |
| 06/05/2013 | CN103135023A Method and device of short circuit detection in power network |
| 06/05/2013 | CN103134995A Information fusion method for transformer substation Internet of Things monitoring |
| 06/05/2013 | CN103134980A Intelligent four-point-probe tester based on STM32 and testing method thereof |
| 06/05/2013 | CN103134979A Checking circuit for energy storage device terminal voltage |
| 06/05/2013 | CN103134978A Clamp meter capable of conducting multi-point measuring |
| 06/05/2013 | CN103134977A Large current detection device and large current detection method |
| 06/05/2013 | CN103134976A Mine circuit electrification indication device and achieving method based on magnetic circuit blocking technology |
| 06/05/2013 | CN103134975A Simple multi-channel current tester |
| 06/05/2013 | CN103134974A Current sensor package, arrangement and system |
| 06/05/2013 | CN103134973A Current detection device |
| 06/05/2013 | CN103134972A Intelligent substation digital statistical type voltage monitor |
| 06/05/2013 | CN103134971A Conductor current measurement device |
| 06/05/2013 | CN103134970A Integrated hall sensors and current detection device suitable for automobile application |
| 06/05/2013 | CN103134969A Power factor corrector and phase voltage estimation method |
| 06/05/2013 | CN103134968A Method for designing photovoltaic power generation working condition monitoring plate for combiner box |
| 06/05/2013 | CN103134967A High current range magnetoresistive current sensor |
| 06/05/2013 | CN102914678B Tank-type tri-phase optical voltage transformer |
| 06/05/2013 | CN102253266B Linear filter-based harmonic current detection method in three-phase four-wire system |
| 06/05/2013 | CN102200562B Power-supply ground detection device |
| 06/05/2013 | CN102176114B Measuring device and method of measuring cyclic analog signal |
| 06/05/2013 | CN102156241B On-line monitoring unit for leakage current of zinc oxide arrester |
| 06/05/2013 | CN102128969B Method for testing input voltage of PFC (Power Factor Correction) circuit with high anti-interference ability |
| 06/04/2013 | US8456232 Electronic circuit |
| 06/04/2013 | US8456197 Differential data sensing |
| 06/04/2013 | US8456174 Method for determining at least one first internal parameter of a sensor |
| 06/04/2013 | US8456149 Electronic apparatus and method of calculating input power value of power supply unit in electronic apparatus |
| 06/04/2013 | DE202013002618U1 Batterieüberwachungsvorrichtung Battery monitoring device |
| 05/30/2013 | WO2013075800A1 Battery and method for operating a battery |
| 05/30/2013 | WO2013075403A1 System and process for determining and analysing surface property parameters of substance based on kinetic method |
| 05/30/2013 | WO2013075374A1 Monitoring method and device for ac high voltage electric wire |
| 05/30/2013 | US20130138366 Electric distribution system protection |
| 05/30/2013 | US20130138365 Uninterruptible power supply testing |
| 05/30/2013 | US20130138364 Determine installation of components based on performance characteristics |
| 05/30/2013 | US20130135111 Self-calibrating current switch with display |
| 05/30/2013 | US20130134960 Electrical hazard warning in audio signal probe |
| 05/30/2013 | US20130134132 High power electrical switching device |
| 05/29/2013 | DE102012221803A1 Stromsensorbaustein, Anordnung und System Current sensor module assembly and system |
| 05/29/2013 | DE102012221795A1 Mikrofon und Verfahren zum Kalibrieren eines Mikrofons A method of calibrating a microphone and a microphone |
| 05/29/2013 | DE102012221794A1 Verfahren zum Testen eines Leistungsversorgungs-Controllers und integrierte Schaltung mit einem Leistungsversorgungscontroller A method for testing a power supply controller integrated circuit and with a power supply controller |
| 05/29/2013 | DE102009057282B4 Strommesssystem Current Measurement System |
| 05/29/2013 | CN202956471U Testing and recording system of circuit board |
| 05/29/2013 | CN202956454U Intelligent arrester detection device based on wireless synchronization |
| 05/29/2013 | CN202956451U Automatic intelligent tester for storage battery charger |
| 05/29/2013 | CN202956428U Residual voltage testing device |
| 05/29/2013 | CN202956427U Current calibrating device for instrument |
| 05/29/2013 | CN202956426U Conduction detector for roll shaft |
| 05/29/2013 | CN202956425U Wire over-current detector |
| 05/29/2013 | CN202956424U Automatic checkout device for preventing faults of dynamic mixed stirring blades |
| 05/29/2013 | CN202956423U Anti-electric-shock high-voltage electricity approaching alarm |
| 05/29/2013 | CN202956422U Novel precision current detection circuit |
| 05/29/2013 | CN202956421U Intelligent voltmeter |
| 05/29/2013 | CN202956420U Voltage collecting system |
| 05/29/2013 | CN202956419U Novel sensing system of DC (direct current) traction power supply system |
| 05/29/2013 | CN202956418U Special-purpose meter for measuring terminal voltage of storage battery |
| 05/29/2013 | CN103124911A Method and system of measuring current in an electric meter |
| 05/29/2013 | CN103124143A Power supply system, image forming apparatus having the same, and low-capacity AC processing circuit |
| 05/29/2013 | CN103123373A Electrical parameter testing device |
| 05/29/2013 | CN103123372A Signal acquisition unit and current detection device |
| 05/29/2013 | CN103123371A Device and method for monitoring antenna states |
| 05/29/2013 | CN103123370A Power battery voltage monitoring and alarming device |