| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 07/24/2013 | CN101927700B Methods and systems for diagnosing stator windings in an electric motor |
| 07/24/2013 | CN101881794B AC line signal detection device and method and power supply device |
| 07/24/2013 | CN101738523B Device for detecting voltage of serially-connected cells |
| 07/24/2013 | CN101650391B Method and device for detecting oscillation of electrical systems |
| 07/24/2013 | CN101241147B Apparatus for measuring an electric current flowing through an electrical conductor |
| 07/23/2013 | US8494793 Structure of a magnetic-field gradient sensor and process for fabricating it in integrated technology |
| 07/23/2013 | US8493056 AC voltage measurement circuit |
| 07/23/2013 | US8493055 Voltage measurement apparatus |
| 07/18/2013 | WO2013106763A1 Three phase power quality measurement using asynchronous, isolated single phase circuits |
| 07/18/2013 | WO2013106160A1 Apparatus for employing low ohmic alloy conductors and method for simplifying current drain data retrieval |
| 07/18/2013 | WO2013105451A1 Current sensor |
| 07/18/2013 | WO2013104764A1 Current measuring device and method |
| 07/18/2013 | WO2013104393A1 Battery arrangement for a motor vehicle |
| 07/18/2013 | US20130185009 High speed high dynamic range high accuracy measurement system |
| 07/18/2013 | US20130183043 Apparatus for employing low ohmic alloy conductors and method for simplifying current drain data retrieval |
| 07/18/2013 | US20130181696 Low-voltage exit detector, error detector, low-voltage safe controller, brown-out detection method, and brown-out self-healing method |
| 07/18/2013 | US20130181695 Method of measuring link voltage |
| 07/18/2013 | DE102013200335A1 Schaltungsanordnung mit einem Lasttransistor und Verfahren zum Messen eines Stromes durch einen Lasttransistor Circuit arrangement having a load transistor and method for measuring a current through a load transistor |
| 07/18/2013 | DE102012200556A1 Anordnung und Verfahren zur potentialgetrennten Strommessung an einem elektrischen Leiter Apparatus and method for electrically isolated current measurement to an electrical conductor |
| 07/18/2013 | DE102012200508A1 Batteriesensor Battery Sensor |
| 07/18/2013 | DE102012000585A1 Batterieanordnung für ein Kraftfahrzeug Battery assembly for a motor vehicle |
| 07/18/2013 | DE102012000557A1 Überwachungseinrichtung und Verfahren zur Überwachung eines Leitungsabschnittes mit einer Überwachungseinrichtung Monitoring device and method for monitoring a line section with a monitoring device |
| 07/18/2013 | CA2860844A1 Apparatus for employing low ohmic alloy conductors and method for simplifying current drain data retrieval |
| 07/17/2013 | EP2614574A1 Method and cell monitoring unit for monitoring a rechargeable battery |
| 07/17/2013 | CN203071819U Intelligent charging power supply |
| 07/17/2013 | CN203071548U Intellectualized controller used for plastic casing breaker |
| 07/17/2013 | CN203069764U Electric parameter measurement circuit of battery pack |
| 07/17/2013 | CN203069756U Generator charging indication device |
| 07/17/2013 | CN203069741U High-temperature reverse bias real-time monitoring system |
| 07/17/2013 | CN203069732U Generator?set state monitoring?system |
| 07/17/2013 | CN203069703U Lightning protection equipment intelligence monitoring terminal |
| 07/17/2013 | CN203069702U Lightning protection equipment intelligence monitoring system |
| 07/17/2013 | CN203069690U High-accuracy current?calibration device for wind energy converter |
| 07/17/2013 | CN203069670U Intelligent electric meter having function of monitoring power supply reliability and voltage qualified rate |
| 07/17/2013 | CN203069666U Intelligent high-precision digital voltmeter |
| 07/17/2013 | CN203069665U Voltage measuring module |
| 07/17/2013 | CN203069664U Three-phase capacitance divider measuring device |
| 07/17/2013 | CN203069663U Ultra high voltage direct current insulator leakage current measurement system |
| 07/17/2013 | CN203069662U Overvoltage protector-containing discharge counter for lightning rod |
| 07/17/2013 | CN203069661U Intelligent control system-containing discharge counter for lightning rod |
| 07/17/2013 | CN203069660U Wireless control device-containing discharge counter for lightning rod |
| 07/17/2013 | CN203069659U Wireless monitoring device-containing discharge counter for lightning rod |
| 07/17/2013 | CN203069658U Infrared sensing device-containing discharge counter for lightning rod |
| 07/17/2013 | CN203069657U Detection control device-containing discharge counter for lightning rod |
| 07/17/2013 | CN203069656U Safety indicating device used for electric power line knife switch |
| 07/17/2013 | CN203069655U Induction-type high-voltage presence indication device |
| 07/17/2013 | CN203069654U Power failure detection circuit |
| 07/17/2013 | CN203069653U Convenient electroprobe |
| 07/17/2013 | CN203069652U High-voltage electroscopic pen |
| 07/17/2013 | CN203069651U Voltage change remote monitoring system |
| 07/17/2013 | CN203069650U Three-LED leakage current detector |
| 07/17/2013 | CN203069649U Current detection circuit, a constant current circuit and a cell charging and discharging protection system |
| 07/17/2013 | CN203069648U Direct-current high-current optical-fiber testing device |
| 07/17/2013 | CN203069647U DC high-voltage detection circuit |
| 07/17/2013 | CN203069646U Lead current gatherer for power transmission and distribution line |
| 07/17/2013 | CN203069645U 220-kV photoelectric transformer |
| 07/17/2013 | CN103207378A Lightning arrester resistive current source simulation system |
| 07/17/2013 | CN103207371A Battery sensor |
| 07/17/2013 | CN103207350A Low voltage direct current power distribution fault line selection method |
| 07/17/2013 | CN103207345A Secondary neutral point multipoint grounding monitoring deivce of voltage transformer of transformer substation |
| 07/17/2013 | CN103207339A Method and device for determining over-current of inverter |
| 07/17/2013 | CN103207318A Quasi-reciprocal optical closed-loop lithium niobate optical waveguide alternating electric field/voltage sensor |
| 07/17/2013 | CN103207317A Voltage change collecting circuit of voltmeter applied to battery |
| 07/17/2013 | CN103207316A High-accuracy direct current extra-high voltage measurement method based on miniature electron accelerator and energy spectrum measurement technology |
| 07/17/2013 | CN103207315A Single-ended amplitude detector and single-ended amplitude detecting unit |
| 07/17/2013 | CN103207314A Non-contact current detection device of building fire-fighting equipment |
| 07/17/2013 | CN103207313A Special voltage test system |
| 07/17/2013 | CN103207312A Voltage and current phasor measurement method based on dynamic data window |
| 07/17/2013 | CN103207311A Magnetostriction current sensor for power system |
| 07/17/2013 | CN103207310A Blazed fiber bragg grating based current change detection device |
| 07/17/2013 | CN103207309A Voltage measurement method of inter-phase short-circuit fault point of UHV (ultra-high voltage) AC (alternating current) power transmission line |
| 07/17/2013 | CN103207308A Lightning arrester resistive current and capacitive current transient value measuring method |
| 07/17/2013 | CN103207307A Test method of leakage current component of metal oxide arrester |
| 07/17/2013 | CN103207306A Partial discharge transient earth voltage sensor |
| 07/17/2013 | CN103207305A Method for measuring voltage transient value of interphase short-circuit fault point of electric transmission line |
| 07/17/2013 | CN103207304A Device and method for monitoring protective conductor |
| 07/17/2013 | CN103207303A Current Measurement In A Power Transistor |
| 07/17/2013 | CN103207302A Detecting circuit of discharge current of inductor and power factor correction circuit |
| 07/17/2013 | CN103207301A Coil of optical-fiber current sensor and optical-fiber current sensor based on coil |
| 07/17/2013 | CN103203706A Novel multifunctional screwdriver |
| 07/17/2013 | CN102426285B Current sensor used for bidirectional current sampling |
| 07/17/2013 | CN101975975B Zero temperature coefficient optical wave plate and polarization state converter |
| 07/17/2013 | CN101587174B 磁传感器 Magnetic sensors |
| 07/16/2013 | US8489349 Identifying a current drawn by a load |
| 07/16/2013 | US8489347 Battery pack monitoring apparatus |
| 07/16/2013 | US8487606 Sensor assembly, trip unit including the same, and method of manufacturing a sensor assembly |
| 07/16/2013 | DE202013006095U1 Prüfgerät mit eigener Stromquelle zur Funktionsprüfung elektrischer Verbraucher und deren Anbauteilen Tester with its own power source for functional testing of electrical consumers and their attachments |
| 07/16/2013 | DE202013005113U1 Batteriesensor Battery Sensor |
| 07/16/2013 | CA2495622C Bathing system controller having abnormal operational condition identification capabilities |
| 07/11/2013 | WO2013103414A2 Method, system, and computer-readable medium for determining performance characteristics of an object undergoing one or more arbitrary aging conditions |
| 07/11/2013 | US20130179124 Electrical event detection device and method of detecting and classifying electrical power usage |
| 07/11/2013 | US20130179104 Dc-motor and fuel pump faults and brush-wear prognosis |
| 07/11/2013 | CA2799753A1 Voltage or contact closure sensor |
| 07/10/2013 | CN203056544U Casing electric leakage protection circuit and road traffic signal control machine using the circuit |
| 07/10/2013 | CN203056279U Safety timing socket |
| 07/10/2013 | CN203056272U Safe grounding device |
| 07/10/2013 | CN203054194U Monitoring system for breaking coil and closing coil of breaker |
| 07/10/2013 | CN203054142U Alarm circuit |
| 07/10/2013 | CN203054138U Lightning arrester rapid measuring device |
| 07/10/2013 | CN203054137U Power transmission line pole tower integrated monitoring system |