Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
04/2014
04/30/2014CN103760400A Voltage stabilization on-line monitoring method based on wide area measuring system
04/30/2014CN103760399A Method for manufacturing Hall current sensor by using ferrite and Hall current sensor
04/30/2014CN102565614B Alternating voltage loop test method
04/30/2014CN102539886B Measurement method of three-phase non-centerline triangular phase voltage measurement circuit
04/30/2014CN102519670B Electric parameter verification device for vacuumometers
04/30/2014CN102082428B Surge protection device with signal safely-acquiring function and system
04/30/2014CN101995507B Current sensing device and manufacturing method of the same
04/30/2014CN101957399B Digital closed loop type optical fiber current sensor
04/29/2014US8713500 Computer program and apparatus for evaluating signal propagation delays
04/29/2014US8710867 Electronic system auto-mute control circuit and control method thereof
04/29/2014US8710823 Contact sensor, driver device, and care bed
04/29/2014CA2600545C Device for supplying power to measuring sensors and transmitting a synchronous clock signal thereto
04/24/2014WO2014061982A1 Apparatus for determining error of sensorless motor using counter-electromotive force signal
04/24/2014WO2014061422A1 Voltage detection device
04/24/2014WO2014061214A1 Power failure detection method, power failure detector, lighting device, and power supply device
04/24/2014WO2014060330A1 Method and device for measuring a current flowing through a switch
04/24/2014WO2014059850A1 Detection circuit for relative error voltage
04/24/2014WO2014059736A1 Output voltage detection circuit of dc/dc conversion circuit
04/24/2014WO2014021957A3 An imbedded chip for battery applications
04/24/2014US20140114596 Radiation measuring apparatus
04/24/2014US20140111196 Current sensor
04/24/2014US20140111190 Current detection device and electricity meter
04/24/2014US20140111189 Method for the contactless determination of an electrical potential of an object using two different values for the electric flux, and device
04/24/2014US20140111188 Active shunt ammeter apparatus and method
04/24/2014DE102013110152A1 Stromzählereinrichtung Current meter device
04/24/2014DE102012018634A1 Method for determining current-voltage characteristic curve of voltage source e.g. photovoltaic cell, involves averaging mathematical combination of measurement values to eliminate measurement errors of first and second order
04/23/2014EP2722677A2 Active shunt ammeter apparatus and method
04/23/2014CN203563115U Device for detecting power-on currents and standby currents of mobile phones
04/23/2014CN203562771U Inductive thunder prevention device used for long distance pipeline valve chamber equipment
04/23/2014CN203562770U District lightning protection distribution box for LED lighting equipment under TN-S power supply system
04/23/2014CN203561715U Power distribution network electric leakage signal on-line detection device
04/23/2014CN203561711U Online monitoring device for overvoltage protection device
04/23/2014CN203561700U Lightning arrester on-line monitoring system
04/23/2014CN203561691U High-precision circuit collection device
04/23/2014CN203561689U Data acquisition system of electronic type current transformer
04/23/2014CN203561688U Monitoring device and system for grounding current of transformer
04/23/2014CN203561687U Current detection system
04/23/2014CN203561686U Static voltage detection apparatus
04/23/2014CN203561685U Level detector of computer power supply
04/23/2014CN203561684U Low voltage detection and alarm circuit of vehicle storage battery
04/23/2014CN203561683U Small wastewater processor motor protection system
04/23/2014CN203561682U Abnormal overcurrent on-line detection device
04/23/2014CN203561681U Voltage abnormity alarm of transformer
04/23/2014CN203561680U Monitor system host power failure text message alarm device
04/23/2014CN203561679U High-voltage electroscope
04/23/2014CN203561678U Inductive voice test pencil
04/23/2014CN203561677U Universal electroscope
04/23/2014CN203561676U Leakage current tester
04/23/2014CN203561675U High-voltage signal conditioning device for variable-frequency induction furnace
04/23/2014CN203561674U Current monitoring device and anti-electricity-stealing load monitoring system
04/23/2014CN203561673U Boosting rectification transformer current sampling circuit
04/23/2014CN203561672U A cell voltage sampling circuit used for microcomputer protection
04/23/2014CN203561671U Double semi-ring overhead line electricity measurer
04/23/2014CN203561444U High-voltage line temperature wireless detecting device
04/23/2014CN103746543A Current detection device of bridge-type driving circuit
04/23/2014CN103746198A Electricity testing and ground connection all-in-one rod
04/23/2014CN103744284A Two-end time synchronization triggering system and method applied to parameter measurement of power transmission line
04/23/2014CN103743946A Integrating circuit for resonance current of high-frequency precipitation power supply
04/23/2014CN103743945A Circuit and method for detecting load current of high-voltage pulse power supply
04/23/2014CN103743944A Alternating current and direct current voltage true virtual value measurement method capable of automatically identifying type of signal
04/23/2014CN103743943A Assembled battery total voltage detection circuit
04/23/2014CN103743942A Detection method for initiating explosive device leakage current of power distribution module with solid relay
04/23/2014CN103743941A Wireless communication clamp alternating current ammeter without power supply
04/23/2014CN103743940A Precise zero cross detection circuit for resonance current of high-frequency dedusting power supply
04/23/2014CN103743939A Dry-type smoothing reactor arrester light insulator counter lead-out structure
04/23/2014CN103743938A Bus voltage checking method
04/23/2014CN103743937A High voltage presence indicating device and implementing method thereof
04/23/2014CN103743936A Optical fiber current sensing device and Optical fiber current sensing system
04/23/2014CN103743935A Method for measuring system capacitance current in power supply system in coalmine production
04/23/2014CN103743934A High-precision high-side current detection circuit
04/23/2014CN102590589B 4-20mA current transmitter circuit
04/23/2014CN102590586B Photoelectric current transformer for supplying power for transmission line insulator
04/23/2014CN102455375B Automatic scanning oscillation electrode technology
04/23/2014CN102313562B Method and circuit for carrying out compensation on additional phase drift of Y-shaped waveguide
04/23/2014CN102081124B System and method for identifying high-speed peripheral equipment interconnected signal
04/23/2014CN101806823B Current production equipment for generating and monitoring and measuring the electric current
04/23/2014CN101706560B Magnetic field sensing system using spin-torque diode effect
04/23/2014CA2847665A1 Methods and systems for measuring and using the oxidation-reduction potential of a biological sample
04/22/2014US8704527 Comparison judgment circuit
04/22/2014US8704507 Method for determining usage rate of breaking hammer, breaking hammer, and measuring device
04/17/2014WO2014058966A1 Lossless over-current detection circuit for royer oscillators and push-pull converters
04/17/2014US20140103918 Current sensor
04/17/2014US20140103908 Current sensor
04/17/2014US20140103905 Energy monitoring device
04/17/2014US20140103903 Helical spring, connector, electrode and electrometer
04/17/2014US20140103902 Semiconductor Device Having Sensing Functionality
04/17/2014DE102013218478A1 Fehlerbetrieb-stromversorgungssystem mit einem einzigen energiespeicher Error-operating power supply system with a single energy storage
04/17/2014DE102013205236A1 Monitoring device for monitoring residual voltage, has protection device to perform safety-promoting measure to avoid contact of voltage-carrying part by person when output signal indicates that voltage amount exceeds threshold value
04/17/2014DE102012218773A1 Verfahren und Einrichtung zur Messung eines Stroms durch einen Schalter Method and device for measuring a current through a switch
04/17/2014DE102012218710A1 Device for comparing current through magnetizing inductance of transformer with reference value, has reference voltage source that is connected to center tap configured to form threshold voltage source
04/16/2014EP2720049A1 Device and method for alternating current physical quantity measurement and data collection
04/16/2014EP2719012A1 Device for monitoring the voltage output by the cells of an electrochemical generator
04/16/2014EP2719000A1 Method for detecting a triggering of a security device
04/16/2014CN203554301U Period-varying sampling device for voltage and current of AC-AC frequency converter
04/16/2014CN203553521U Multifunctional power socket with electricity consumption monitoring and warning functions
04/16/2014CN203552455U System for testing locomotive signal machine
04/16/2014CN203551748U Battery voltage detection circuit
04/16/2014CN203551727U Electric locomotive roof insulation detector
04/16/2014CN203551726U Electric locomotive roof insulation detecting device
04/16/2014CN203551654U AC measuring device and solenoid-valve current sampling and measuring device
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