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)
11/2011
11/16/2011	CN102243263A Alternating current value detection and current zero crossing point detection circuit
11/16/2011	CN102243262A Current detection circuit
11/16/2011	CN102243261A Current detection circuit
11/16/2011	CN102243260A High-precision high-linearity alternating current (ac) and direct current (dc) detection apparatus
11/16/2011	CN102243258A Modulation type optical current transducer and method thereof for measuring alternating current and direct current
11/16/2011	CN101776710B High voltage DC power transmission line shielding failure current waveform inversion recovery method
11/16/2011	CN101634669B Apparatus and method for detecting harmonic current
11/16/2011	CN101603985B Method for measuring sine signal with high accuracy
11/16/2011	CN101593983B Method for quickly positioning oscillating center of electric system
11/16/2011	CN101576581B Voltage detecting apparatus with voltage controlled oscillator and battery state control system
11/16/2011	CN101567581B Universal intelligent low-voltage monitoring system
11/15/2011	US8060325 Variable sensing using frequency domain
11/15/2011	US8060324 Device and a method for estimating transistor parameter variations
11/15/2011	US8058908 Level detector, voltage generator, and semiconductor device
11/15/2011	DE202011051745U1 Spannungsteiler Voltage divider
11/10/2011	WO2011139822A1 Energy storage level indication circuit
11/10/2011	WO2011138242A1 Circuit arrangement for detecting a maximum in the profile of a measurement signal
11/10/2011	WO2011138241A1 Circuit arrangement for determining the closing instant of a valve with a coil which actuates an armature
11/10/2011	WO2011137768A1 Detecting circuit and synchronously rectifying circuit
11/10/2011	US20110273182 Detecting the voltage in battery cells
11/10/2011	DE19716477B4 Verfahren und Einrichtung zur Messung einer elektrischen Spannung Method and device for measuring an electric voltage
11/10/2011	DE102011000943A1 Stromsensor Current sensor
11/10/2011	DE102010019533A1 Strommessverfahren für Schaltgeräte mit parallel geschalteten Strombahnen Current measurement method for switching devices with parallel current paths
11/09/2011	CN202035180U Signal lamp circuit and signal lamp
11/09/2011	CN202035175U Lag type dimmer
11/09/2011	CN202034931U Current detector of control system of AC permanent magnet synchronous motor
11/09/2011	CN202034767U Three-phase electrical network over-current monitoring alarm circuit
11/09/2011	CN202034726U Low-pressure distribution box possessing energy consumption monitoring function
11/09/2011	CN202034634U Power saving socket control circuit specially used for computer
11/09/2011	CN202034155U Analog low-resistance resistor of enclosed standard network-based resistor
11/09/2011	CN202033615U Simulating and debugging box for servo control system
11/09/2011	CN202033455U Direct testing loop used for direct current switch test
11/09/2011	CN202033442U Zero-sequence current on-line monitoring device for meter box
11/09/2011	CN202033415U Voltage over standard measurement device for earth fault detection
11/09/2011	CN202033414U Medical leakage current testing instrument
11/09/2011	CN202033413U Voltage collecting module
11/09/2011	CN202033412U Dual-power-supply communication detecting module
11/09/2011	CN202033411U Biopolar voltage detection system
11/09/2011	CN202033410U Transient over-voltage monitoring unit
11/09/2011	CN202033409U Safe multipurpose electroprobe
11/09/2011	CN202033408U High-voltage live display alarming device
11/09/2011	CN202033407U Current detection circuit of low-power alternating-current servo driver
11/09/2011	CN202033406U Pqms
11/09/2011	CN202033405U Current measuring device
11/09/2011	CN202033404U Power supply voltage detecting and reminding device
11/09/2011	CN202033403U Alternating current value and current zero crossing point detection circuit
11/09/2011	CN202033402U AC pincerlike ammeter with heavy current and high precision
11/09/2011	CN202033401U Wireless current measuring device
11/09/2011	CN202033390U Socket type current detecting device
11/09/2011	CN102239629A Primary-side based control of secondary-side current for a transformer
11/09/2011	CN102237677A Conduction testing method for controllable spark gap of fault current limiter
11/09/2011	CN102237667A Overcurrent detecting circuit of USB port
11/09/2011	CN102236080A Voltage detecting circuit and method thereof
11/09/2011	CN102236056A System and method for detecting insulator
11/09/2011	CN102236046A Method for detecting voltage monitoring function of electricity utilization management terminals in batches
11/09/2011	CN102236045A Low-frequency analog square wave signal threshold voltage AD sampling method
11/09/2011	CN102236044A Pulse current sensor and surge wave recording lightning protection box manufactured by adopting same
11/09/2011	CN102236043A Method used for measuring current and temperature in motor car
11/09/2011	CN102236042A Magnetic field current sensors
11/09/2011	CN102236041A Voltage detection displaying device
11/09/2011	CN102236040A High speed alternating current (ac) motor power supply current detection method and apparatus thereof
11/09/2011	CN102236039A Dark current detection method
11/09/2011	CN102235318A Arrangement for lightning detection
11/09/2011	CN101881669B Real-time closed-loop measuring and tracking method of half-wave voltage of integrated electro-optical phase modulator
11/09/2011	CN101833027B Non-contact type superconducting tape current-carrying capacity measuring device
11/09/2011	CN101819224B Lightning current measuring transducer based on differential ring
11/09/2011	CN101794453B Reconstruction method of node mapping image based on regression analysis
11/09/2011	CN101788594B Non-contact type superconduction belt material critical current measuring device
11/09/2011	CN101701980B Current and voltage detection method of internal-combustion locomotive and device thereof
11/09/2011	CN101666645B Machine room minute environment monitoring system
11/09/2011	CN101577438B Equipment for high-capacity back-up power maintenance based on remote monitoring platform
11/09/2011	CN101484820B Device for measuring parameters of an electrical power supply
11/09/2011	CN101382568B Optical fiber type voltage measurement method and measuring set thereof
11/09/2011	CN101226670B Shorted fault and alarming method for beyond-retrieve-type cable-type line-type heat fire detector
11/08/2011	US8055928 Method for characterizing the health of a computer system power supply
11/08/2011	US8055738 Automatically generating a configuration diagram based on task requirements
11/08/2011	US8054061 Electric potential sensor
11/05/2011	CA2738996A1 Arrangement for lightning detection
11/03/2011	WO2011136712A1 A method, an apparatus and system for temporary energy supply
11/03/2011	WO2011136111A1 Voltage detection device for fuel cell
11/03/2011	WO2011136110A1 Voltage measurement device for assembled battery
11/03/2011	WO2011135030A1 Voltage sensing arrangement for a flyback converter
11/03/2011	WO2011110120A3 Direct current contactor
11/03/2011	WO2011094102A3 Data processing system having brown-out detection circuit
11/03/2011	US20110270557 Measuring method of critical current density of superconductor wires using measurement of magnetization loss
11/03/2011	US20110270555 Process variation detection apparatus and process variation detection method
11/03/2011	US20110270554 Sampling rate adjustment system and method
11/03/2011	US20110270553 Apparatus, Sensor Circuit, and Method for Operating an Apparatus or a Sensor Circuit
11/03/2011	US20110267729 Combined power meter and outlet device
11/03/2011	US20110267032 Three-phase electric energy measurement apparatus
11/03/2011	US20110267028 Measuring device and methods for use therewith
11/03/2011	DE102010018739A1 Relais, insbesondere für den Hochstrombereich Relay, in particular for the high-current range
11/02/2011	EP2383581A1 Apparatus for monitoring fault current in power system
11/02/2011	CN202026239U High voltage starting switch and sensing field effect transistor (FET) multiplex circuit and switching power supply applying same
11/02/2011	CN202025406U Residual current type electric fire monitoring detector
11/02/2011	CN202025075U Under-voltage alarm circuit used for vehicle multimedia device
11/02/2011	CN202025054U Portable creepage current electrified detecting system for support insulator
11/02/2011	CN202025048U Electricity parameter acquisition circuit based on message communication function
11/02/2011	CN202025042U Lightning warning device
11/02/2011	CN202025038U Serial connection type zero load current phase measuring instrument

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