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)
08/2013
08/21/2013	CN203149027U Voltage fluctuation and flicker detection apparatus based on energy operator and frequency spectrum correction
08/21/2013	CN203149026U Discharge counter for safety type lightning arrester
08/21/2013	CN203149025U Transient overvoltage monitoring system
08/21/2013	CN203149024U Battery under-voltage alarm device
08/21/2013	CN203149023U Electricity test pen with rain-shielding function
08/21/2013	CN203149022U Novel low voltage test pencil
08/21/2013	CN203149021U Embedded cell box monitoring node of solar street lamp
08/21/2013	CN203149020U Prompting device for safety load current of electric power circuit
08/21/2013	CN203149019U Current transformer and inverter provided with current transformer
08/21/2013	CN203149018U Welder parameter tester
08/21/2013	CN203149017U Common-mode voltage testing tool
08/21/2013	CN203149016U Super capacitor single body voltage sampling measuring circuit
08/21/2013	CN203149015U Current and voltage detection type insulation sleeve of ring net switch device
08/21/2013	CN203149014U Inter-harmonic wave detection apparatus for electric power distribution system
08/21/2013	CN203149013U Underground high voltage electric cable protection layer over-limit current monitoring device
08/21/2013	CN203149012U Current sensor
08/21/2013	CN203149011U Current sensor structure
08/21/2013	CN203148512U Monitoring system for steel rail oiling device
08/21/2013	CN103262401A Switch-mode power supply with enhanced current source capability
08/21/2013	CN103259207A Multifunctional dolly for 10kV and 35kV dolly-type switch cabinet
08/21/2013	CN103257267A Built-in electric energy collection module of household appliance
08/21/2013	CN103257266A Portable all-insulation optical-fiber current detector
08/21/2013	CN103257265A Electronic device, circuit and method for detecting wake-up time
08/21/2013	CN103257264A Novel high-voltage electroscope for alternating currents and direct currents
08/21/2013	CN103257263A Non-contacting-type power frequency voltage measuring device
08/21/2013	CN103257262A Reciprocal light path optical type current sensing device based on magnetic fluid
08/21/2013	CN103257261A Accurate and quick processing circuit of voltage and current signals
08/21/2013	CN103256965A Multi-channel electrical equipment parameter collecting device
08/21/2013	CN103255427A Method for setting position of cathode protection test pile of underground pipeline
08/21/2013	CN102435953B Power supply monitoring instrument of seismic data processing workstation
08/21/2013	CN102393486B Lithium battery current detecting circuit and method based on time digital converter
08/21/2013	CN102305889B Dual mode 220v user side power grid phasor measuring and transmitting device and method
08/21/2013	CN102305887B Discharging current counter
08/21/2013	CN102073010B Motor stalling mechanism
08/21/2013	CN101860017B Control device for high-voltage and high-power power electronic converter system
08/21/2013	CN101598771B Devices and method for detecting output over-voltage protection point of power supply module
08/20/2013	US8513979 Integrated circuit and related controlling method
08/15/2013	US20130211755 Detection circuit for detecting signals produced by bridge circuit sensor
08/15/2013	US20130208761 Instrument with Non-contact Infrared Temperature Measurement and Current Clamp
08/15/2013	US20130207639 Wireless voltage sensing device
08/14/2013	EP2626864A1 Device and method for scanning a signal
08/14/2013	EP2625533A1 Low-voltage exit detector, error detector, low-voltage safe controller, brown-out detection method, and brown-out self-healing method
08/14/2013	DE102012202077A1 Verfahren zum Bestimmen eines Stroms, Batteriemanagementeinheit, Batterie und Kraftfahrzeug A method for determining a current, battery management unit, battery and motor vehicle
08/14/2013	DE102012202035A1 Mikromechanisches Bauelement mit einer Membran Micromechanical component with a membrane
08/14/2013	DE102012201995A1 Switching device e.g. circuit breaker for protecting generator in wind power plant, has electronic shutter which is provided with direct current sensor provided with soft magnetic probes as magnetic field detectors
08/14/2013	DE102012101045A1 Input filter device for railway network, has intermediate storage element that stores energy of inductor in open state of switching element, and delivers stored energy to output in closed state of switching element
08/14/2013	DE102012002691A1 Method for providing wind turbine for supplying electric power at connection region of network for wind energy plant, involves determining design data based on network status of network
08/14/2013	DE102008039195B4 Verfahren und Elektronikvorrichtung zum Erfassen der Frequenz eines Eingangstaktsignals einer integrierten Schaltung und integrierte Schaltung A method and electronic device for detecting the frequency of an input clock signal, an integrated circuit and integrated circuit
08/14/2013	CN203135393U Current foldback circuit for hot swapping fittings of electronic equipment
08/14/2013	CN203133529U Information detection apparatus
08/14/2013	CN203133202U Transformer DC magnetic bias on-line monitoring device
08/14/2013	CN203133197U Test apparatus for electric executing mechanism
08/14/2013	CN203133180U Storage battery parameter measurement device
08/14/2013	CN203133160U A digital voltmeter based on a FPGA
08/14/2013	CN203133159U Three-phase checking instrument for electricity utilization
08/14/2013	CN203133158U Transformer neutral point current collection device
08/14/2013	CN203133157U Transformer iron core/clamp grounding current wireless monitoring device
08/14/2013	CN203133156U A voltage quality monitoring analyzer equipped with an overvoltage protector
08/14/2013	CN203133155U A voltage quality monitoring analyzer equipped with a light adjusting circuit
08/14/2013	CN203133154U Lightning-protection counting device
08/14/2013	CN203133153U Intrinsically safe induction electricity testing pen for coal mine
08/14/2013	CN203133152U High voltage detecting instrument
08/14/2013	CN203133151U An electricity testing pen convenient for holding
08/14/2013	CN203133150U Voltage sampling circuit and electric heater provided therewith
08/14/2013	CN203133149U Detection device for grounding current of transformer core
08/14/2013	CN203133148U 100V/220V voltage arbiter
08/14/2013	CN203133147U Current amount absolute value measuring device of Hall current sensor
08/14/2013	CN203133146U Transformer neutral point current measuring device
08/14/2013	CN203133145U Vacuum load switch voltage-loss related test device
08/14/2013	CN203133144U Novel current sensor assembly
08/14/2013	CN203133143U Novel current sensor integrated assembly
08/14/2013	CN203133142U Vehicle storage battery voltage tester
08/14/2013	CN203133141U Voltage detecting device of automatic change-over switch
08/14/2013	CN203133140U Voltage detecting circuit of automatic change-over switch
08/14/2013	CN203133136U Testing device based on FPGA
08/14/2013	CN103247134A Round 63-400A electric fire alarm detector
08/14/2013	CN103246593A Server and voltage detection warning system thereof
08/14/2013	CN103245917A Circuit for measuring voltage of single battery in battery pack comprising 6 batteries connected in series
08/14/2013	CN103245842A Detection method for full-system simulation running of 10-35 kV newly-mounted electrical device
08/14/2013	CN103245835A Operating state data collection and intelligent analysis system for relay protection device
08/14/2013	CN103245827A Voltage and current measuring device
08/14/2013	CN103245826A Lightning induction voltage determining method and system on distributing lines
08/14/2013	CN103245825A Voltage detecting system and method
08/14/2013	CN103245824A Non-contact D-dot voltage transformer and voltage detection self-correcting method thereof
08/14/2013	CN103245823A Method for measuring voltage at interphase short circuit fault point of power transmission line
08/14/2013	CN103245822A Retractable circuit detection pen
08/14/2013	CN103245821A Wideband voltage signal acquisition device
08/14/2013	CN103245820A Stator-side out-of-balance current monitoring method for turn-to-turn short circuit in hydraulic generator rotor
08/14/2013	CN103245819A Method for measuring direct current or direct voltage by adopting magnetic excitation resonant piezoresistive cantilever beam
08/14/2013	CN103245818A Method for measuring voltage at single-phase earth fault point of power transmission line
08/14/2013	CN103245817A Voltage measuring method and voltage transducer
08/14/2013	CN103245816A Integrated current sensing device
08/14/2013	CN103245812A Integrated wiring device for carrying out voltage measurement on electric energy meter
08/14/2013	CN103245366A Vibration signal differentiating circuit
08/14/2013	CN102445581B Capacitive voltage-division type self-calibration optical voltage transducer
08/14/2013	CN102435829B Self-calibration method for optical voltage sensor
08/14/2013	CN102331525B Distributed type on-line harmonic detecting system based on Internet of construction equipment
08/14/2013	CN102183718B Method for testing light emitting diode crystal particle
08/14/2013	CN102121958B Device and method for monitoring neutral point earthing of secondary winding of electric power current and voltage mutual inductor
08/14/2013	CN101930019B Optical fiber current sensor and manufacturing method thereof

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