| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 06/08/2011 | CN201859173U Multipurpose tester pen tool |
| 06/08/2011 | CN201859172U Test pencil with insulating tape |
| 06/08/2011 | CN201859171U Simple electricity detector |
| 06/08/2011 | CN201859170U Current sensor for automobiles |
| 06/08/2011 | CN201859169U On-line monitoring device for zinc oxide arrester on wireless power transmission line |
| 06/08/2011 | CN201856178U Induction type electricity checking pincers |
| 06/08/2011 | CN102089666A High signal level compliant input/output circuits |
| 06/08/2011 | CN102089665A Single-supply single-ended high voltage peak detector |
| 06/08/2011 | CN102088204A Electronic device for switching power supply mode through detecting external power supply |
| 06/08/2011 | CN102087803A Simulated lightning counter |
| 06/08/2011 | CN102087341A LED light source detection device |
| 06/08/2011 | CN102087326A Uninterrupted power test method for 330kv metal zinc oxide arrester leakage current |
| 06/08/2011 | CN102087312A Automatically controlled peak detector for signal |
| 06/08/2011 | CN102087311A Method for improving measurement accuracy of power mutual inductor |
| 06/08/2011 | CN102087310A Shielding voltage measuring device for alternating current (AC) extra-high voltage |
| 06/08/2011 | CN102087309A Method for detecting voltage of multiple serially connected batteries |
| 06/08/2011 | CN102087308A Electric quantity acquisition and test analyzer and method for power system |
| 06/08/2011 | CN101706537B PEA space charge test device capable of testing conductive current |
| 06/08/2011 | CN101625382B Method for continuously tracking and measuring grounding current of automatic compensating device of arc suppression coil |
| 06/08/2011 | CN101603982B Distributed method for collecting zero-sequence current concerning load variation |
| 06/08/2011 | CN101587972B Double cell control method |
| 06/08/2011 | CN101576595B Online monitoring and electricity testing method of switch cabinet lightning arrester and device for realizing same |
| 06/08/2011 | CN101331402B Current measurement circuit and method |
| 06/08/2011 | CN101324642B Method and device for collecting multi-channel electromagnetic valve current |
| 06/08/2011 | CN101256207B Method and apparatus for overvoltage detection circuit |
| 06/07/2011 | CA2329963C Fiber optic current sensor |
| 06/03/2011 | WO2011064030A1 Apparatus and method for measurement of a motor current of a direct-current motor |
| 06/03/2011 | WO2011063685A1 Totem-pole bridgeless circuit system and current sampling device |
| 06/01/2011 | EP2328387A2 Device for detecting the status of an electric fence |
| 06/01/2011 | DE112009001796T5 Isolierter Stromsensor Isolated current sensor |
| 06/01/2011 | CN201854240U High-low voltage driving power supply with continuous current detection |
| 06/01/2011 | CN201854233U Detection device for frequency and voltage at end of static frequency-conversion starter of pumped-storage power station |
| 06/01/2011 | CN201854050U Power supply of electric field induction type signal detection circuit of high-voltage system |
| 06/01/2011 | CN201854010U Multifunctional overvoltage and undervoltage protection monitoring system |
| 06/01/2011 | CN201853572U Current sampling mutual inductor |
| 06/01/2011 | CN201852931U Test circuit of analog residual current signal |
| 06/01/2011 | CN201852882U Module for protecting sampling of measurement signal in relay protection device |
| 06/01/2011 | CN201852881U Built-in voltage monitor alarming device |
| 06/01/2011 | CN201852880U Voltage detection and alarm module |
| 06/01/2011 | CN201852879U Sound-light electricity testing pen |
| 06/01/2011 | CN201852878U Electroscope |
| 06/01/2011 | CN201852877U Broadband partial discharge current sensor |
| 06/01/2011 | CN201852876U Integral lightning protection module with functions of leakage current detection and discharge frequency |
| 06/01/2011 | CN201852875U Online detection device for inductive voltage and circulating current of medium-voltage and high-voltage single-conductor cross-linked cable |
| 06/01/2011 | CN201852873U Bipolar current-voltage converting circuit |
| 06/01/2011 | CN201849493U Degradation indicating switch diode component |
| 06/01/2011 | CN102082463A Method for realizing redundancy of 4-20-mA current output in distributed control system (DCS) and circuit |
| 06/01/2011 | CN102082428A Surge protection device with signal safely-acquiring function |
| 06/01/2011 | CN102082423A Relay protection method for phase to phase fault of circuit |
| 06/01/2011 | CN102081146A High-voltage battery voltage detection device |
| 06/01/2011 | CN102081124A System and method for identifying high-speed peripheral equipment interconnected signal |
| 06/01/2011 | CN102081123A Automatic capacitance and inductance testing device |
| 06/01/2011 | CN102081116A Adaptive digital method for detecting zero crossing point of alternating voltage |
| 06/01/2011 | CN102081115A Method and device for indirectly measuring large DC based on AC detection |
| 06/01/2011 | CN102081114A Instantaneous symmetrical component method-based current detection method for distribution static synchronous compensator (DSTATCOM) |
| 06/01/2011 | CN102081113A Tester for zinc oxide arrester |
| 06/01/2011 | CN102081107A Signal acquisition system having reduced probe loading of a device under test |
| 06/01/2011 | CN101576580B Non-invasive current on-line measurement method of electric equipment |
| 06/01/2011 | CN101408571B Inserted detection circuit |
| 05/31/2011 | US7952393 Semiconductor memory device |
| 05/31/2011 | US7952345 Inverted magnetic isolator |
| 05/31/2011 | US7952343 Current measurement circuit and method |
| 05/26/2011 | WO2011062350A1 Method for estimating the critical current density of a superconducting wire using an estimation of magnetization loss |
| 05/26/2011 | WO2011060820A1 Method and device for error-compensated current measurement of an electrical accumulator |
| 05/26/2011 | US20110121819 Amplifier and array for measuring small current |
| 05/26/2011 | US20110121816 Surge current detection device |
| 05/26/2011 | US20110121814 Test apparatus |
| 05/26/2011 | DE202011002516U1 Einrichtung zum Testen einer elektrischen Größe Means for testing an electrical quantity |
| 05/26/2011 | DE112009000897T5 Prüf-und-Mess-Vorrichtung mit einem Pistolengriff Testing and measuring apparatus having a pistol grip |
| 05/26/2011 | DE102009047042A1 Vorrichtung und Verfahren zum Messen eines Motorstroms eines Gleichstrommotors Apparatus and method for measuring a motor current of a DC motor |
| 05/25/2011 | EP2325658A1 Device and method for estimating battery resistance characteristics using battery voltage behaviour |
| 05/25/2011 | EP1957992B1 Diagnostic system for power converter |
| 05/25/2011 | CN201846243U Zero-crossing detection circuit of switching power supply |
| 05/25/2011 | CN201845962U Multifunctional remote control intelligent socket device |
| 05/25/2011 | CN201845076U Testing device for high-voltage board of power supply of liquid crystal television |
| 05/25/2011 | CN201845072U Portable wide-range detection device for voltage-regulating value of voltage-regulator tube |
| 05/25/2011 | CN201845059U Process checking multimeter |
| 05/25/2011 | CN201845055U Multi-loop measurement system |
| 05/25/2011 | CN201845054U Multifunctional digital phase detection measuring instrument |
| 05/25/2011 | CN201845048U Remote monitoring device for transformers |
| 05/25/2011 | CN201845047U Indicator for respectively displaying two different voltage classes on DC (direct current) circuit |
| 05/25/2011 | CN201845046U Dry contact output detection circuit |
| 05/25/2011 | CN201845045U Composite test pencil |
| 05/25/2011 | CN201845044U Electroscope for shielded cable terminal |
| 05/25/2011 | CN201845043U Telescopic test pencil |
| 05/25/2011 | CN201845042U Magnetic on-line voltage sampling probe |
| 05/25/2011 | CN201845041U Voltage sensor |
| 05/25/2011 | CN201845040U Electric potential detector for intelligent key chip of automobile |
| 05/25/2011 | CN201845039U Voltage detecting device |
| 05/25/2011 | CN201845038U Electrical leakage tester for three-phase three-wire IT (information technology) system |
| 05/25/2011 | CN1982897B Microcurrent tester |
| 05/25/2011 | CN1897429B Single pin multi-function signal detection method and structure therefor |
| 05/25/2011 | CN102077408A Method for battery state-of-health monitoring using battery voltage during vehicle starting |
| 05/25/2011 | CN102077105A Method for battery capacity estimation |
| 05/25/2011 | CN102076145A Accurate detection and control method and device for automobile LED steering lamp |
| 05/25/2011 | CN102074855A Zigbee technology-based wireless intelligent socket for monitoring fine grit electric quantity |
| 05/25/2011 | CN102074766A Battery pack and method of sensing voltage of battery pack |
| 05/25/2011 | CN102074339A Intelligent distribution transformer |
| 05/25/2011 | CN102073016A Methods for detecting actual capacity, residual capacity, standby time and health condition of battery |
| 05/25/2011 | CN102073010A Motor stalling mechanism |