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)
12/2010
12/29/2010CN101930021A Current sampling circuit, resonant circuit and DCDC converter
12/29/2010CN101930020A Power supply voltage detection circuit with ultra-low power consumption
12/29/2010CN101930019A Optical fiber current sensor and manufacturing method thereof
12/29/2010CN101927700A Methods and systems for diagnosing stator windings in an electric motor
12/29/2010CN101576583B Method for testing voltage ratio of transformer with phase-shifting winding
12/29/2010CN101477145B AC great current sensor
12/29/2010CN101447686B Power supplier capable of detecting and adjusting voltage and current required by electronic product
12/29/2010CA2766807A1 Power distribution apparatus with input and output power sensing and method of use
12/28/2010US7859330 Optimized uplink efficiencies for transmission of satellite data
12/28/2010US7859247 Device, system and method for monitoring electromagnetic fields
12/23/2010WO2010146279A1 Measurement of the ionisation current of an ignition system of an internal combustion engine
12/23/2010US20100324843 Method and Device for Measuring the Electric Power of a Universal Electric Motor Powered by Sinusoidal Alternating Voltage
12/23/2010US20100323431 Bi-stable display fail safes and devices incorporating the same
12/23/2010US20100321616 Imaging device, electric charge readout method, and imaging apparatus
12/23/2010US20100321044 Sensing element integrating silicon nanowire gated-diodes, manufacturing method and detecting system thereof
12/23/2010US20100321027 Methods and Systems for Detection Using Threshold-Type Electrostatic Sensors
12/23/2010US20100321000 Ac detection circuit for power supply
12/23/2010US20100320999 Testing apparatus
12/23/2010US20100320998 System for testing power supply performance
12/23/2010US20100320997 Method and circuit for measuring quiescent current
12/23/2010US20100320976 Dc-dc converters having improved current sensing and related methods
12/22/2010CN201682179U Intelligent control device of switchgear
12/22/2010CN201681120U Power wireless digital sensor
12/22/2010CN201681119U Data collecting system for electro-migration voltage at welding spot
12/22/2010CN201681118U Output current detection device of high voltage electric field and electric potential therapeutic apparatus
12/22/2010CN201681117U Intelligent coulombmeter
12/22/2010CN201681116U Generator rotor parameter measuring equipment
12/22/2010CN201681115U Current sensor used for grounding current detection of transmission poles and towers
12/22/2010CN201681114U Voltage measuring instrument
12/22/2010CN201681107U Measuring device capable of automatically controlling measuring range
12/22/2010CN201681105U Current display circuit
12/22/2010CN1826032B Electronic ballast, lighting device and method for operating high-pressure discharge lamps
12/22/2010CN1808149B Advection type membrane surface electric potential tester
12/22/2010CN101924342A Abnormal current detecting circuit for circuit breaker
12/22/2010CN101923821A Method for detecting backlight currents of liquid crystal display through analog-to-digital conversion inside chip
12/22/2010CN101923352A Indoor security robot capable of automatically returning to charge base and method of returning indoor security robot to charge base
12/22/2010CN101923143A Estimating minimum voltage of fuel cells
12/22/2010CN101923134A Digital leakage current detection circuit and detection method thereof
12/22/2010CN101923126A Digital protecting tester, automatic closed loop test system and method
12/22/2010CN101923111A Isolation detection circuit of DC bus voltage
12/22/2010CN101923110A Method and device for detecting abnormal current of circuit
12/22/2010CN101923109A Lightning waveform monitoring system for power transmission line leads
12/22/2010CN101923108A Lightning current measurement system
12/22/2010CN101922933A Electronic device
12/22/2010CN101294994B Three-phase four-wire system electric energy quantifier with overload protection
12/21/2010US7855583 Sense amplifier for low voltage high speed sensing
12/21/2010US7855564 Acoustic wave device physical parameter sensor
12/21/2010US7855546 Current sensor having core with magnetic gap
12/21/2010CA2360598C Metal immune system
12/16/2010WO2010143028A1 Converter control device and converter control method
12/16/2010WO2010096642A3 Systems and methods of optical code reading using a color imager
12/16/2010US20100315067 Power Network Sensor Devices and Related Methods
12/16/2010US20100315063 Meter device and method of testing a cut neutral conductor
12/16/2010US20100315062 Quasi-resonant valley voltage detecting method and apparatus
12/16/2010US20100314163 Method for assuring counterbore depth of vias on printed circuit boards and printed circuit boards made accordingly
12/16/2010DE202010014184U1 Passives Stromanzeigegerät mit Leuchtdiode und Spannungswandler Passive power indicator with LED and voltage transformers
12/15/2010EP2261680A2 Peak-to-peak signal detector
12/15/2010CN201674213U Control circuit of switch type power supply
12/15/2010CN201673245U 电池巡检装置 Battery inspection device
12/15/2010CN201673244U Battery electric quantity detecting device
12/15/2010CN201673227U Lightning arrestor operation monitor
12/15/2010CN201673222U Portable power system fault recorder
12/15/2010CN201673208U Test instrument for internal resistance and voltage of high-accuracy lithium ion battery
12/15/2010CN201673204U Digital single-phase AC monitoring ammeter
12/15/2010CN201673203U High-pressure controllable silicon fault detection device
12/15/2010CN201673202U Current detector of a vehicle engine radiation fan motor
12/15/2010CN201673201U Voltage display test pencil
12/15/2010CN201673200U Test pencil capable of vocally submitting voltage values
12/15/2010CN201673199U Test pen with wire stripper
12/15/2010CN201673198U Test pencil with illumination function
12/15/2010CN201673197U Electroprobe with cutter
12/15/2010CN201673196U Test pen with ball pen
12/15/2010CN201673195U Multifunctional electrical test pen
12/15/2010CN201673194U Special fixture for residual action current testing system
12/15/2010CN201673193U Current detector
12/15/2010CN201673192U Current monitor of power transmission and distribution lines
12/15/2010CN201673191U Permanent magnet magnetron monitoring device
12/15/2010CN101918851A Voltage source measurement unit with minimized common mode errors
12/15/2010CN101916674A Super insulation operating rod
12/15/2010CN101916547A Driver for driving a plurality of light-emitting components and display equipment
12/15/2010CN101915897A Battery routing inspection apparatus and battery voltage acquisition method
12/15/2010CN101915895A Dynamic potential detection circuit for DC motor
12/15/2010CN101915878A Method for measuring depoissonization time of ferroelectric film
12/15/2010CN101915869A Method for reducing measuring error introduced by excitation signal amplitude fluctuations and implementation device
12/15/2010CN101915868A Acquisition circuit for improving acquisition precision of voltage signal
12/15/2010CN101915867A Current measuring circuit and method in varying high-intensity magnetic field environment
12/15/2010CN101915751A Simulation test device of transmittance of battery pack euphotic layer and test method thereof
12/15/2010CN101373197B Method and apparatus for on-line monitoring over voltage
12/15/2010CN101046496B Methods of detecting arc faults characterized by consecutive periods of arcing
12/14/2010US7852064 Meter device and method of testing a cut neutral conductor
12/14/2010CA2359281C Detection circuitry for surgical handpiece system
12/09/2010WO2010139358A1 Current measurement in switched mode power supply
12/09/2010WO2010042424A8 Current measuring device
12/09/2010US20100308845 Current measurement circuit and measuring method thereof
12/09/2010US20100308841 Circuit arrangement for monitoring an electrical insulation
12/09/2010US20100308796 Signal readout circuit of amperometric sensor
12/09/2010US20100308795 Sensor apparatus
12/09/2010US20100308794 Scheme for low power strain measurement
12/09/2010US20100308790 Apparatus and method for testing driver writeability strength on an integrated circuit
12/09/2010DE202010011725U1 Vorrichtung zur Strommessung an einem elektrischen Leiter Device for measuring current in an electrical conductor
1 ... 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 ... 299