| Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850) |
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| 07/31/2013 | CN203101484U Circuit measurement circuit |
| 07/31/2013 | CN203101483U Auxiliary device for measuring leakage current |
| 07/31/2013 | CN203101482U Metallic oxide arrester leakage current detection device and system |
| 07/31/2013 | CN203101481U High-precision AC sampling system |
| 07/31/2013 | CN203101480U Current detection circuit |
| 07/31/2013 | CN203101479U Current detection circuit |
| 07/31/2013 | CN203101478U Multifunctional digital electric power instrument having strong anti-EFT capability |
| 07/31/2013 | CN203101477U Hall closed-loop current sensor |
| 07/31/2013 | CN203101476U Analog acquisition module using high-end current detection method for fault diagnosis |
| 07/31/2013 | CN203101475U Current-voltage converter |
| 07/31/2013 | CN203101474U Electrification detector for high-voltage electric system |
| 07/31/2013 | CN103229404A Voltage sensing arrangement for a flyback converter |
| 07/31/2013 | CN103229060A 差动电流传感器 Differential current sensor |
| 07/31/2013 | CN103226165A TMR self-zeroing digital current sensor and self-zeroing method thereof |
| 07/31/2013 | CN103226164A Low-voltage controllable clamp meter |
| 07/31/2013 | CN103226163A Alternating and direct current universal millivoltmeter circuit |
| 07/31/2013 | CN103226162A Optical waveguide voltage sensor based on double light path compensation |
| 07/31/2013 | CN102243287B Method for monitoring multipoint grounding failure of magnetic suspension stator coil |
| 07/31/2013 | CN102082423B Relay protection method for phase to phase fault of circuit |
| 07/31/2013 | CN102062823B Electric leakage protection device tester |
| 07/31/2013 | CN101978276B Electrical tester setup and calibration device |
| 07/31/2013 | CN101839934B Determination of method for calculating current distribution coefficient of vacuum fluorescent displayer |
| 07/31/2013 | CN101833025B On-line detection method for dynamic response of excitation control system |
| 07/31/2013 | CN101738534B Voltage test device and voltage test method |
| 07/30/2013 | US8497710 Low-offset current-sense amplifier and operating method thereof |
| 07/30/2013 | US8497709 Input/output circuit and system |
| 07/30/2013 | US8497696 Test signal detection system having a probe with high-precision DC-voltage measurement |
| 07/25/2013 | WO2013108971A1 Apparatus and method for diagnosing flaws in rotor of indcution motor, and medium on which is recorded computer-readable program for executing method |
| 07/25/2013 | WO2013107506A1 Hearing device with a means for receiver current estimation and a method of estimating a receiver current for a hearing device |
| 07/25/2013 | WO2013106962A1 High-precision closed-loop electronic circuit for hall current sensor |
| 07/25/2013 | WO2013106961A1 High-precision cross-core closed-loop single power supply electronic circuit for hall current sensor |
| 07/25/2013 | WO2013106960A1 High-precision cross-core open-loop electronic circuit for hall current sensor |
| 07/25/2013 | WO2013106959A1 High-precision whole pcb-mounted closed-loop axisymmetric magnetic circuit magnetic core coil component for hall current sensor |
| 07/25/2013 | WO2013106922A1 System and method for linear measurement of ac waveforms with low voltage non-linear sensors in high voltage environments |
| 07/25/2013 | US20130191059 Earth/ground clamp for measuring earth resistance of electrical installations |
| 07/25/2013 | US20130191056 Method of determining pwm values for led modules |
| 07/25/2013 | US20130187709 Amplifying circuits and calibration methods therefor |
| 07/25/2013 | US20130187659 Battery system for vehicle, on-vehicle battery module, and cell controller |
| 07/25/2013 | US20130187635 Electrical sensor for a two-wire power cable |
| 07/25/2013 | US20130187634 Monitoring device and method for monitoring a line section using a monitoring device |
| 07/25/2013 | US20130187633 Current sensor |
| 07/25/2013 | US20130187631 Device for detecting a load type |
| 07/25/2013 | US20130186405 System and method for monitoring medical equipment |
| 07/25/2013 | DE102012200964A1 Überwachungsvorrichtung, Batteriezelle und Verfahren zum Überwachen einer Batteriezelle Monitoring device, the battery cell and methods for monitoring a battery cell |
| 07/25/2013 | DE102012200722A1 Vorrichtung und Verfahren zur Ermittlung einer erfolgten Kontaktierung eines Anschlusses Apparatus and method for determining a made contact with a terminal |
| 07/25/2013 | DE102012100477A1 Method for measuring current in photovoltaic inverter by transducer, involves continuously measuring voltage drop over shunt resistor by switch, and filtering measured voltage in response to distinctive control signals |
| 07/25/2013 | DE102011078603B4 Verfahren zum Überwachen der Funktionssicherheit von mindestens einer passiven Elektrode sowie Vorrichtung zum Überwachen der Funktionssicherheit von mindestens einer passiven Elektrode A method for monitoring the functional reliability of at least one passive electrode as well as apparatus for monitoring the functional reliability of at least one passive electrode |
| 07/25/2013 | CA2861414A1 System and method for linear measurement of ac waveforms with low voltage non-linear sensors in high voltage environments |
| 07/24/2013 | EP2618439A2 Protective circuit for a battery pack |
| 07/24/2013 | EP2616823A2 Apparatus and method for determining proper wiring of multiple three-phase motors in a single system |
| 07/24/2013 | CN203086880U Meter reader |
| 07/24/2013 | CN203086240U Power system lightning remote on-line monitoring device |
| 07/24/2013 | CN203085891U Current overload alarm power socket |
| 07/24/2013 | CN203084548U Current output signal test and multiple-address input circuit |
| 07/24/2013 | CN203084137U Multi-purpose single-phase socket connection checker and application thereof |
| 07/24/2013 | CN203084120U Static parameter tester for voltage limiting type surge protector |
| 07/24/2013 | CN203084118U Monitoring equipment |
| 07/24/2013 | CN203084116U Monitoring device suitable for power distribution system |
| 07/24/2013 | CN203084115U Monitoring apparatus |
| 07/24/2013 | CN203084114U Monitor |
| 07/24/2013 | CN203084113U Monitoring system |
| 07/24/2013 | CN203084093U Monitor used for lightning arrester |
| 07/24/2013 | CN203084078U Multifunctional electric energy meter |
| 07/24/2013 | CN203084069U Three-phase ammeter based on 48*48 shell |
| 07/24/2013 | CN203084068U Analog voltage acquisition circuit with isolation function |
| 07/24/2013 | CN203084067U AC abnormity fast detection circuit |
| 07/24/2013 | CN203084066U Mining line electrified indicating device based on magnetic circuit blocking technology |
| 07/24/2013 | CN203084065U Test pencil |
| 07/24/2013 | CN203084064U Multifunctional electroscope |
| 07/24/2013 | CN203084063U Measurement circuit module |
| 07/24/2013 | CN203084062U Current tester specially used in photovoltaic junction box |
| 07/24/2013 | CN203084061U Induction current sampling circuit |
| 07/24/2013 | CN203084060U Voltage monitoring alarm used for jail power grid |
| 07/24/2013 | CN203084059U High-voltage testing apparatus based on semiconductor discrete device testing system |
| 07/24/2013 | CN203084058U Split type hall current sensor |
| 07/24/2013 | CN203084057U Multi-loop current acquisition apparatus |
| 07/24/2013 | CN203084056U Non-fixed non-contact large current precision detection instrument |
| 07/24/2013 | CN203084055U Electrified measuring device for iron core current of transformer |
| 07/24/2013 | CN203084054U Novel instrument display sampling circuit |
| 07/24/2013 | CN203084053U Six-path-voltage sampling circuit |
| 07/24/2013 | CN203084052U Laminated lithium ion battery pole voltage test tool |
| 07/24/2013 | CN203084051U Sampling device of high voltage power supply |
| 07/24/2013 | CN203083831U Aging test equipment for paying-off mower and brush cutter |
| 07/24/2013 | CN103221830A Integrated circuit device and method for detecting an excessive voltage state |
| 07/24/2013 | CN103221829A Electrical device and method for determining a phase failure in the electrical device |
| 07/24/2013 | CN103217572A Device and method for detecting voltage and zero crossing point of alternating current |
| 07/24/2013 | CN103217571A Differential type D-dot voltage transformer and voltage detecting method thereof |
| 07/24/2013 | CN103217570A Tunneling magneto resistive (TMR) self-temperature-compensation digital current sensor |
| 07/24/2013 | CN103217569A Real-time current diagnosis method and equipment of homologous SMV (Sampled Measured Value) sample information of intelligent substation |
| 07/24/2013 | CN103217568A Real-time voltage diagnosis method and equipment of homologous SMV (Sampled Measured Value) sample information of intelligent substation |
| 07/24/2013 | CN103217567A Current detection method and power detection circuit |
| 07/24/2013 | CN103217566A Current online monitoring integrated system of on-load tap changer |
| 07/24/2013 | CN103217565A Current sensor and implementing method thereof based on alloy resistor |
| 07/24/2013 | CN103217564A Voltage sensor and implementing method thereof based on alloy resistor |
| 07/24/2013 | CN103217563A Electrical sensor for a two-wire power cable |
| 07/24/2013 | CN103217562A Alternating current and direct current voltage detection method and device for inhibiting optical voltage transducer nonlinear characteristic |
| 07/24/2013 | CN102331521B 10kV handcart switch simple electricity testing device |
| 07/24/2013 | CN102305886B Fundamental voltage synchronous signal detection method during harmonic distortion and unbalance of network voltage |
| 07/24/2013 | CN102035457B Motor drive device |
| 07/24/2013 | CN101981459B Programmable gain trans-impedance amplifier overload recovery circuit |