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)
10/2010
10/06/2010CN201600405U 高电压光电变换电压传感器的结构 Structure of the high voltage of the photoelectric conversion voltage sensor
10/06/2010CN201600404U 一种多功能摄像头测试板 A multifunctional camera test board
10/06/2010CN201600403U 阴极保护测试桩 Cathodic protection test piles
10/06/2010CN101853798A High voltage sensor device and method therefor
10/06/2010CN101853554A Fireproofing pre-warning monitoring method for unmanned base station and system thereof
10/06/2010CN101852825A Wideband online measuring system for corona current of high-voltage transmission line
10/06/2010CN101852824A Digital photoelectric voltage sensor
10/06/2010CN101852823A Non-contact type voltage measuring device and non-contact type voltage measuring method
10/06/2010CN101259551B Electrospark wire-electrode cutting process discharge condition detecting device
10/06/2010CN101113999B Three-wire serial-in type interface method of navigation mark telemetering measurement terminal
10/05/2010US7808257 Ionization test for electrical verification
10/05/2010US7808230 Voltage detection device and voltage detection method
10/05/2010US7808226 Line tracing method and apparatus utilizing non-linear junction detecting locator probe
10/05/2010CA2310295C Multiple match detection circuit and method
09/2010
09/30/2010US20100250166 Methods And Devices For Evaluating The Operating Characteristics Of A DBR Laser Diode
09/30/2010US20100250165 Control of Delivery of Current Through One or More Discharge Lamps
09/30/2010US20100245151 Wideband jammer detector
09/30/2010US20100244845 Current integrating circuit device and secondary battery package using the same
09/30/2010DE202009010820U1 Messwandler Transducers
09/30/2010DE102009001899A1 Circuit for measuring load current of direct current-direct current converter in automotive application, has two power transistors, where barrier layer surface of one of transistors is smaller than that of other transistor
09/30/2010DE102004059987B4 Spannungsgesteuerte Oszillatorschaltung mit analoger und digitaler Ansteuerung und phasenverriegelte Regelschleife mit einer solchen Oszillatorschaltung Voltage controlled oscillator circuit with analog and digital control and phase-locked loop with such oscillator circuit
09/30/2010DE10143732B4 Messsignal-Generatorschaltung Measuring signal generating circuit
09/30/2010CA2756666A1 Under frequency/under voltage detection in a demand response unit
09/29/2010EP2234220A1 Electric power outlet and connector
09/29/2010EP2233939A2 The method for measuring soc of a battery in battery management system and the apparatus thereof
09/29/2010EP2233938A2 The method for measuring soc of a battery in a battery management system and the apparatus thereof
09/29/2010EP2233934A1 Current integrating circuit device and secondary battery package using the same
09/29/2010EP2232276A2 Multiple capacitance measuring circuits and methods
09/29/2010CN201594664U Electric energy metering socket with electric leakage and overload protection function
09/29/2010CN201594132U Lithium battery detecting tooling
09/29/2010CN201594120U Bypass detection circuit of high-voltage frequency converter power unit
09/29/2010CN201594112U 数字型电压表 Digital type voltmeter
09/29/2010CN201594111U Device for automatically testing voltage drop of fuse holder of automobile
09/29/2010CN201594110U System using power frequency sinusoidal voltage for ion source plasma measurement
09/29/2010CN201594109U Device for automatically testing fuse block of automobile
09/29/2010CN201594108U Wide-range transformer iron core grounding current on-line monitoring sensing device
09/29/2010CN201594107U Anode current on-line monitoring device
09/29/2010CN201594106U Portable anode current tester
09/29/2010CN201594105U Current sampling circuit of high-frequency charger
09/29/2010CN201594104U Intelligent electric potential collector and intelligent electric potential collection control system
09/29/2010CN201594099U Multifunctional electric energy meter
09/29/2010CN1981417B Power supply loading indicators and methods
09/29/2010CN1802060B Working method and apparatus for air discharge lamp
09/29/2010CN101849189A Current integrator with wide dynamic range
09/29/2010CN101847305A All-around current electrical fire alarm monitor of 400V low-voltage distribution network
09/29/2010CN101846729A Method and device for detecting overvoltage of power supply
09/29/2010CN101846727A System and method for detecting loss of isolation while AC motor is operating
09/29/2010CN101846719A Transformer insulation state on-line monitoring device
09/29/2010CN101846711A Fault detection method for detecting leakage paths between power sources and chassis
09/29/2010CN101846705A Alternating current sampling circuit and automatic error correction method thereof
09/29/2010CN101846704A Wireless clamp-on current probe
09/29/2010CN101846703A Digital optical fiber current sensor
09/29/2010CN101846702A Inductive current detection circuit
09/29/2010CN101846701A Unbalance vector tester and method for adjusting balance of H-bridge capacitor set
09/29/2010CN101846700A Current sensing circuit
09/29/2010CN101846615A Device and method for monitoring corrosion of buried steel pipelines
09/29/2010CN101844725A Line voltage drop automatic detection control method for hoisting machinery
09/29/2010CN101354409B Optical current sensor
09/29/2010CN101324647B Method and apparatus for monitoring motorcycle electric appliance operation
09/29/2010CN101149416B Power cable insulation state monitoring and life span management system
09/29/2010CN101140301B Zero waiting current accurate excess voltage comparators
09/29/2010CN101126796B Battery electric quantity detecting method and device
09/29/2010CN101068426B Method for measuring cell phone standby time
09/29/2010CN101067634B Method for accurate computing electric line loss
09/28/2010US7805264 Method of calculating internal resistance of secondary battery for vehicle
09/28/2010US7804333 Input buffer circuit
09/28/2010US7804310 Current detection circuit and current detection method
09/28/2010US7804290 Event-driven time-interval measurement
09/28/2010US7804288 Current measuring arrangement of a frequency converter
09/23/2010WO2010107199A2 Apparatus for measuring ground leakage current in an ungrounded direct current power system, and method for same
09/23/2010US20100237885 Label-free sensor
09/22/2010CN201590674U Intelligent boost-buck charging device
09/22/2010CN201590656U Current unit of photoelectric arc light protection system
09/22/2010CN201589873U Sensing optical fiber for reflective all-fiber current sensor
09/22/2010CN201589857U Precision tester for electronic transformer
09/22/2010CN201589828U Transformer clamp multipoint earthing on-line monitoring device
09/22/2010CN201589812U Servo system DC-bus voltage sampling circuit adopting voltage conversion frequency
09/22/2010CN201589811U Control box for surge testing device
09/22/2010CN201589810U Single-channel time-multiplexed sampling circuit
09/22/2010CN201589809U Outlet signal detecting device
09/22/2010CN201589808U Striking current recording instrument
09/22/2010CN201589807U Voltage detection circuit of reset circuit
09/22/2010CN201589805U Signal detection circuit of current hall sensor
09/22/2010CN101840458A Method for extracting carrier mobility
09/22/2010CN101840241A Differential current sampling circuit and linear voltage regulator
09/22/2010CN101839953A Dynamic aging test bed for component product of microcomputer network control system of locomotive
09/22/2010CN101839942A Electricity-testing insulating rod
09/22/2010CN101839941A Signal sensing amplifier
09/22/2010CN101839940A Output current detection circuit of phase inverter
09/22/2010CN101839939A Subnanosecond high-voltage pulse measurement system
09/22/2010CN101839938A Method for testing airplane model lightning current distribution by utilizing thermal infrared imager
09/22/2010CN101839937A Device and method for power supply detection
09/22/2010CN101839936A Current measurement device
09/22/2010CN101839935A Energy-saving detection circuit
09/22/2010CN101839931A Alternating current signal measurement device, system and method
09/22/2010CN101109772B Testing circuit for crossover voltage and testing method thereof
09/21/2010US7801489 Method and device for measuring radio interference levels with frequency tracking
09/21/2010US7800411 System and method for providing a strobed comparator with reduced offset and reduced charge kickback
09/16/2010WO2010103391A1 Device for displaying electricity consumption
09/16/2010US20100235122 Branch circuit monitor power measurement
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