| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 10/02/2013 | CN203224553U Sampling integral jaw-shaped AC active current meter |
| 10/02/2013 | CN203224552U Multi-functional data recorder with built-in power supply |
| 10/02/2013 | CN203224551U Multifunctional data recorder provided with built-in power supply and capable of voice prompting |
| 10/02/2013 | CN203224550U Multifunctional data recorder capable of voice prompting |
| 10/02/2013 | CN203224549U A voltage sampling circuit of an electric energy data verifying tool |
| 10/02/2013 | CN203224548U A current sampling circuit of an electric energy data verifying tool |
| 10/02/2013 | CN203224547U High-end current detection circuit |
| 10/02/2013 | CN103339517A Analog unit for sequencer system |
| 10/02/2013 | CN103339516A Device for detecting an earth connection fault of an electrical connector system |
| 10/02/2013 | CN103336284A Big dipper positioning telemetric terminal with voltage monitoring function |
| 10/02/2013 | CN103336223A Fault arc detecting and positioning system and method |
| 10/02/2013 | CN103336208A Self-adaptive 100 Hz protecting criterion method for AC/DC power transmission system |
| 10/02/2013 | CN103336186A Method for testing transformer equipment without disassembling lead |
| 10/02/2013 | CN103336169A Direct current voltmeter and method for measuring voltage by using same |
| 10/02/2013 | CN103336168A Full-loop alternating-current self-test high-voltage electroscope |
| 10/02/2013 | CN103336167A AC-DC test pen |
| 10/02/2013 | CN103336166A Safe contact rail voltage monitoring device provided with caution lamp |
| 10/02/2013 | CN103336165A Detection circuit for overcurrent of alternating current and direct current |
| 10/02/2013 | CN103336164A Circuit capable of accurately measuring AC source flame ion current |
| 10/02/2013 | CN103336163A Converter-valve AC/DC voltage test circuit of flexible high-voltage DC transmission system |
| 10/02/2013 | CN103336162A Signal collector for distribution transformer remote monitoring system |
| 10/02/2013 | CN103336161A A multiterminal oscillation voltage measuring method based on fiber optical communication |
| 10/02/2013 | CN103336160A Full shielding high voltage current measuring device |
| 10/02/2013 | CN102338847B Device and method for measuring solar battery performance curves |
| 10/01/2013 | US8547108 Universal mate-in cable interface system |
| 10/01/2013 | CA2664571C Precision ac current measurement shunts |
| 09/26/2013 | WO2013142015A1 Method and apparatus to detect a broken wire condition in an integrated circuit |
| 09/26/2013 | WO2013140876A1 Power conversion device |
| 09/26/2013 | WO2013139376A1 Method and arrangement for determining the quality of the voltage and/or current of an energy supply device |
| 09/26/2013 | US20130249531 Current sensor |
| 09/26/2013 | DE102012204751A1 Verfahren zur Überprüfung einer Erregerstrommessung einer Synchronmaschine im Generatorbetrieb Method for checking an excitation current measurement of a synchronous machine in generator operation |
| 09/26/2013 | DE102012204433A1 Method for testing heating device using computer program of computer program product, involves indicating current difference between current immediately before start of switch-off of and current immediately after start of switch-on |
| 09/26/2013 | DE102012102422A1 Kapazitive Sensoranordnung zur Schaltung einer Türöffnung an einem Kraftfahrzeug und zugehöriges Verfahren A capacitive sensor arrangement for the connection of a door opening on a motor vehicle and associated method |
| 09/26/2013 | DE102012005862A1 Antriebssystem und Verfahren zur Steuerung des Antriebssystems Drive system and method for controlling the drive system |
| 09/25/2013 | EP2642308A2 Method and device for estimating available time for battery |
| 09/25/2013 | EP2642304A1 Isolated voltage sensor and isolated voltage sensor using mtj device |
| 09/25/2013 | CN203219223U Motor control circuit having self-detection function on resistance-meeting condition |
| 09/25/2013 | CN203218874U Rack-mounted intelligent power supply lightning protection cabinet |
| 09/25/2013 | CN203217713U Equipotential high voltage electrification display and living body approach alarm circuit and device thereof |
| 09/25/2013 | CN203217682U Anti-theft cutting and high-voltage early-warning monitoring system for power transmission line |
| 09/25/2013 | CN203217070U An arrester resistive current source simulation system |
| 09/25/2013 | CN203217060U Generator A value/negative-sequence current monitor |
| 09/25/2013 | CN203216988U Multifunctional electric power meter |
| 09/25/2013 | CN203216985U Power detection box |
| 09/25/2013 | CN203216984U 便携式高精度数据采集器 Portable high-precision data acquisition |
| 09/25/2013 | CN203216983U Zero-crossing detection circuit |
| 09/25/2013 | CN203216982U Running current monitoring device for multiple parallel frequency converters |
| 09/25/2013 | CN203216981U Intelligent high-voltage live-line display blocking device based on AVR singlechip |
| 09/25/2013 | CN203216980U Mining explosion-proof high-voltage frequency converter direct current bus voltage indicating device |
| 09/25/2013 | CN203216979U Current sensor for ultrathin charger |
| 09/25/2013 | CN203216978U High-voltage electroscope |
| 09/25/2013 | CN203216977U A novel combined electroprobe |
| 09/25/2013 | CN203216976U 试电笔 Test pencil |
| 09/25/2013 | CN203216975U Current detection module for frequency converter |
| 09/25/2013 | CN203216974U Rogowski wire coil current sensor |
| 09/25/2013 | CN203216973U Current sensor for charger |
| 09/25/2013 | CN203216972U GPRS rod-pumped well current and integrated information all-in-one machine |
| 09/25/2013 | CN203216971U Open-close type PCB hollow coil current sensor |
| 09/25/2013 | CN203216970U Low-voltage controllable clamp meter |
| 09/25/2013 | CN203216969U Measurement and display separating clamp ammeter |
| 09/25/2013 | CN203216968U Voltage detection circuit for Dying gasp |
| 09/25/2013 | CN203216967U Pliers-shaped anti-interference current transformer and transformer iron core grounding current testing system |
| 09/25/2013 | CN103328996A Method and device for estimating available time for battery |
| 09/25/2013 | CN103328987A Polarity detection circuit |
| 09/25/2013 | CN103328986A 电流传感器 Current Sensors |
| 09/25/2013 | CN103326683A RMS detector with automatic gain control |
| 09/25/2013 | CN103326569A Buck-type conversion circuit |
| 09/25/2013 | CN103326350A Converter controller, energy conversion system, photovoltaic energy conversion system and method |
| 09/25/2013 | CN103326311A Portable direct-current monitoring protector |
| 09/25/2013 | CN103323776A Instrument structure for electric vehicle |
| 09/25/2013 | CN103323775A Balanced monitoring and test system used for battery module |
| 09/25/2013 | CN103323745A Method and device for monitoring and locating hidden defect of TV secondary neutral line for relay protection |
| 09/25/2013 | CN103323726A Protective semiconductor device for secondary cell |
| 09/25/2013 | CN103323723A Offshore power grid power distribution terminal energy source monitoring device and monitoring method |
| 09/25/2013 | CN103323716A DC 48V insulation monitoring device |
| 09/25/2013 | CN103323663A Method for measuring losses of direct currents and rectifier of rectifier unit |
| 09/25/2013 | CN103323662A Direct current electric quantity meter with CAN communication function |
| 09/25/2013 | CN103323661A Digital sampling and measuring device |
| 09/25/2013 | CN103323660A H half-bridge IPM bus voltage detection circuit |
| 09/25/2013 | CN103323659A Alternating voltage sampling circuit |
| 09/25/2013 | CN103323658A Counter used for lightning arrester and having wireless data transmission function |
| 09/25/2013 | CN103323657A Motor controller overcurrent judgment circuit |
| 09/25/2013 | CN103323656A Terminal equipment power fail detection circuit |
| 09/25/2013 | CN103323655A Non-contact alternating current and direct current crosstalk online detecting device and non-contact alternating current and direct current crosstalk online detecting method |
| 09/25/2013 | CN103323654A Transient current abnormity tracking and detecting device |
| 09/25/2013 | CN103323653A Low-side sampling circuit |
| 09/25/2013 | CN103323652A Transformer electrification detecting device |
| 09/25/2013 | CN103323651A Variable step size affine projection harmonic current detection method based on time coherent average |
| 09/25/2013 | CN103323650A Comprehensive monitoring device of overhead line |
| 09/25/2013 | CN103323649A 电流测量装置 Current measuring means |
| 09/25/2013 | CN103323648A Current sampling holding circuit |
| 09/25/2013 | CN103323647A Device and method for monitoring classified insulation electromagnetic type PT primary side current |
| 09/25/2013 | CN103323646A Current sensor for electric vehicle and detecting method by means of same |
| 09/25/2013 | CN103323645A Voltage detecting circuit of multiple cell units in series and battery protecting system |
| 09/25/2013 | CN103323644A Method for testing potential distribution of wide band large-scale metal plate |
| 09/25/2013 | CN103323643A Single-chip current sensor and manufacturing method thereof |
| 09/25/2013 | CN103323056A Direct current, temperature and pressure monitoring device for electrical equipment |
| 09/25/2013 | CN103318225A Protective box for railway phase-sensitive track circuit |
| 09/25/2013 | CN102507023B Cable-type temperature display |
| 09/25/2013 | CN102313856B Intelligent 10kV power line state sensor |