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)
10/2008
10/15/2008CN201134617Y Bus temperature and current synthetic monitoring apparatus for high-low voltage distribution cabinet
10/15/2008CN201134614Y Electrical distribution box with alarm for failure of neutral line
10/15/2008CN201134163Y Corona current measurement mechanism
10/15/2008CN201133931Y LCD television set or display energy supply dedicated tester
10/15/2008CN201133918Y Double magnetic loop direct current detector
10/15/2008CN101287202A Earphone detecting method for mobile terminal
10/15/2008CN101286704A Determining average output current in dc-dc converter
10/15/2008CN101285881A Rolling stock remote monitoring instrument based on GPRS and GPS technology
10/15/2008CN101285873A Estimation method, device and electronic system
10/15/2008CN101285863A Circuit board measurement method and device
10/15/2008CN101285857A Alternating current voltage electric current converter and device and method for measuring alternating-current small current
10/15/2008CN101285855A Self focusing -type optical current mutual inductor
10/15/2008CN101285854A Self focusing -type optical current mutual inductor
10/15/2008CN100426907C Wired connection measuring method for power consumption time of CDMA mobile terminal
10/15/2008CN100426654C Precision current sensor used for electric machine control
10/15/2008CN100426653C Quick current-sensing device for motor control
10/15/2008CN100425997C Method and apparatus for judging oil accumulation degree of oil screen of smoke exhaust ventilator
10/15/2008CN100425996C Electrical measurement method for safety theft prevention of oil/gas pipe line
10/15/2008CN100425994C Circuit and method for preventing shunt running in electric energy measurement
10/14/2008US7436165 Device for measuring very short current pulses
10/14/2008US7436087 Power line conditioner
10/14/2008CA2336015C Residual current detection device
10/09/2008WO2008120282A1 Ac electric quantity measuring device
10/09/2008WO2008120163A2 Battery voltage monitoring system
10/09/2008WO2008120017A1 Current measurement
10/09/2008WO2008119639A2 Current control device
10/09/2008US20080249727 Systems and Methods for Determining Variations in Voltages Applied to an Integrated Circuit Chip
10/09/2008US20080247249 Circuit and method for a sense amplifier
10/09/2008US20080246463 Measurement of current-voltage characteristic curves of solar cells and solar modules
10/09/2008US20080246460 Method and apparatus for measuring the output current of a switching regulator
10/09/2008DE10043436B4 Verfahren und Schaltung zur automatischen Verstärkungsregelung eines Signalverstärkers Method and circuit for automatic gain control of a signal amplifier
10/08/2008EP1977263A1 Device for monitoring cell voltage
10/08/2008CN201130860Y Built-in converting station multi-cycle dynamic electric energy quality on-line analysis apparatus
10/08/2008CN201130843Y Single user energy consumption on-site intelligent management apparatus
10/08/2008CN201130820Y Optical fiber transmission apparatus for monitoring high-low voltage distribution cabinet bus current
10/08/2008CN201130244Y Detection of flexible package battery inner short circuit and voltage measurement clamp
10/08/2008CN201130239Y Multifunctional test pen
10/08/2008CN201130234Y Circuit structure of voltage monitoring plate of DC transmission thyristor flow-exchanging valve
10/08/2008CN201130213Y High pressure electrification display trigger device for induction high pressure armored cable of electrification state
10/08/2008CN201130212Y Vehicle test pen circuit
10/08/2008CN201130211Y Electrification spacing indicator
10/08/2008CN201130210Y Apparatus for measuring thunder and lightning flow
10/08/2008CN201130209Y Apparatus for detecting voltage change
10/08/2008CN201130208Y Apparatus for monitoring high-low-voltage distribution cabinet bus infrared current
10/08/2008CN201130037Y Flow measurement instrument
10/08/2008CN101283282A Current measurement circuit and method of diagnosing faults in same
10/08/2008CN101282040A Method for real time sorting non-intrusion type electric load
10/08/2008CN101281227A Ground wire voltage and current detecting device
10/08/2008CN101281217A Dynamic processing temperature compensation method in power supply management technique
10/08/2008CN101281216A Voltage measuring circuit using scan mode
10/08/2008CN101281215A Active mode current detecting system
10/07/2008US7432719 Abnormality monitoring apparatus in load drive circuit
10/07/2008US7431245 Rapid exchange system for testing wireless networks
10/02/2008WO2008116750A1 Method for detecting an electric potential difference on a piezoelectric actuator unit and circuit arrangement for carrying out said method
10/02/2008US20080244279 Methods and Apparatus to Detect Voltage Class of a Circuit
10/02/2008US20080239834 Sense amplifier for low voltage high speed sensing
10/02/2008US20080238406 Intelligent Electronic Device Having Improved Analog Output Resolution
10/02/2008US20080238403 Stud sensor
10/02/2008US20080237508 Radiation image detection apparatus, residual charge amount estimation method for use with the apparatus and program therefor
10/01/2008EP1975778A1 Method and digital logic circuit for determining a signal of output samples and corresponding computer program code
10/01/2008EP1337909A4 Processing web editor for data processing in a digital oscilloscope or similar instrument
10/01/2008CN201126631Y 6/10kV vertical compression type energy-saving high-voltage measuring box
10/01/2008CN201126457Y Electric leakage detection apparatus
10/01/2008CN201126451Y High-power overpressure resistant test device
10/01/2008CN201126446Y Approximation test pencil
10/01/2008CN101278459A Power up circuit with low power sleep mode operation
10/01/2008CN101278452A Method and system for through fault detection in electrical devices
10/01/2008CN101277012A Fast impedance protection technique immune to dynamic errors of capacitive voltage transformers
10/01/2008CN101277011A Self-adjusting voltage filtering technique compensating for dynamic errors of capacitive voltage transformers
10/01/2008CN101275983A Test method of metal oxide semiconductor field-effect transistor threshold voltage
10/01/2008CN101275975A Mobile phone cell low-voltage testing circuit
10/01/2008CN101275974A Power supply duplex tester
10/01/2008CN101275250A Method for detecting damage of cathode carbon block on bottom of aluminum cell
10/01/2008CN100422751C Undercurrent sense arrangement and method
09/2008
09/30/2008US7430524 Network-based system for selecting or purchasing products
09/30/2008US7429855 Regenerative load bank with a motor drive
09/30/2008CA2401771C Electro-optic voltage sensor
09/25/2008WO2008113239A1 A current testing circuit and device
09/25/2008US20080234957 Intelligent Electronic Device and Method Thereof
09/25/2008US20080231246 Current Detection Circuit, Load Drive Circuit, and Memory Storage
09/25/2008DE202006020504U1 Elektrisches/elektronisches Gerät Electrical / electronic device
09/25/2008DE112006003066T5 Prüfvorrichtung und Prüfverfahren Tester and test methods
09/25/2008DE102007013712A1 Verfahren und Vorrichtung zur Auswertung schneller Stromänderungen Method and apparatus for evaluation of rapid current changes
09/25/2008DE102007013634A1 Vorrichtung zur Messung eines von einem Wechselstromanteil überlagerten Gleichstromanteils eines in Leitern von Wechselstrombahnen fließenden Stroms A device for measuring one of an alternating current component superposed a direct current component in conductors of alternating current paths flowing stream
09/24/2008EP1973212A2 Ground fault interruption using DSP based SSPC module
09/24/2008EP1972949A1 Voltage detection device and voltage detection method
09/24/2008EP1972948A1 Voltage detection device and voltage detection method
09/24/2008CN201122739Y USB concentrator with current detecting function
09/24/2008CN201122170Y Speech neon-electroscope
09/24/2008CN101271671A Ghost wiping circuit and its method and display equipment control circuit
09/24/2008CN101271621A Wireless monitoring lightning stroke protecting counter
09/24/2008CN101271618A High-speed data acquisition method and data acquisition card for electric power monitoring
09/24/2008CN101271146A Circuit abnormality determining apparatus and method
09/24/2008CN101271142A Peak detection circuit integrated on CMOS single chip
09/24/2008CN101271138A Photo-current and photo-voltage measuring pool
09/24/2008CN101271131A Synthetic electric power observation and control instrument
09/24/2008CN101271130A Lattice type Hall electric current transducer
09/24/2008CN101269627A Vehicle mounted electrical apparatus driving circuit module with failure diagnosis function
09/24/2008CN100420950C Current detector with variable outputting level
09/24/2008CN100420949C Forging abnormal detection device of forged component forming machine
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