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)
04/2010
04/21/2010CN101696983A Method and device for measuring neutral point of capacitance current of distribution network
04/21/2010CN101696903A Detection device of magnetic valve
04/21/2010CN101188355B Method for converting the end electric screen current of mutual inductor into line voltage and insulation line monitoring device
04/21/2010CN101055295B Fan system and its power source monitoring device
04/21/2010CN101055286B Four-range voltage measuring device adopting current splitting branch
04/21/2010CN101034104B Four measuring ranges portable potentiometer
04/21/2010CN101033983B High anti-interference alternating-current/magnetic field sensor
04/20/2010US7701257 Data receiver and semiconductor device including the data receiver
04/20/2010US7701256 Signal conditioning circuit, a comparator including such a conditioning circuit and a successive approximation converter including such a circuit
04/20/2010US7701191 Method for the detection of objects enclosed in a medium, and measuring apparatus for carrying out said method
04/20/2010US7700918 Sample electrification measurement method and charged particle beam apparatus
04/15/2010WO2010042717A2 Method and apparatus for determining ac voltage waveform anomalies
04/15/2010WO2010042643A2 Photovoltaic module monitoring system
04/15/2010WO2010042424A1 Current measuring device
04/15/2010WO2010040409A1 Method and apparatus for dynamic signal switching of a merging unit in an electrical power system
04/15/2010US20100091567 Test Circuit and Method for Multilevel Cell Flash Memory
04/15/2010US20100090726 Data receiver of semiconductor integrated circuit
04/15/2010US20100090684 Method and apparatus for current measurement using hall sensors without iron cores
04/15/2010US20100090683 Current measuring device
04/15/2010US20100090678 Method for Producing an Electricity Sensing Device
04/15/2010US20100090676 Electrostatic discharge device testing system and method
04/15/2010US20100089109 Lock device
04/15/2010DE102008051421A1 Vorrichtung und Verfahren zur Messung elektrischer Kenngrößen Apparatus and method for measuring electrical parameters
04/15/2010DE102007062633B4 Anordnung zum potentialfreien Messen von Strömen Arrangement for floating measuring currents
04/15/2010DE102006039546B4 Verfahren und Mess-Schaltung zum Bestimmen der Zuverlässigkeit eines integrierten Schaltkreises The method and measurement circuit for determining the reliability of an integrated circuit
04/15/2010DE102006026209B4 Überwachungseinrichtung und Verfahren für eine bordseitige Batterie zur Korrektur des Offset-Werts von deren Stromsensor Monitoring device and method for an onboard battery to correct the offset value of the current sensor
04/15/2010DE10011047B4 Direktabbildender Stromsensor Direct measurement current sensor
04/15/2010CA2739650A1 Method and apparatus for dynamic signal switching of a merging unit in an electrical power system
04/15/2010CA2739424A1 Current measuring device
04/14/2010EP2175287A2 Device and method for measuring electrical parameters
04/14/2010CN201438203U Digital clamp meter for measuring current and power consumed by electrical products
04/14/2010CN201438202U Modulator-demodulator capable of automatically warning
04/14/2010CN201438201U Secondary loop circuit voltage drop synchronous detection device for voltage mutual inductor
04/14/2010CN201438200U Auxiliary operator for clamp ammeters
04/14/2010CN201438199U Power quality on-line monitoring device
04/14/2010CN201438175U Digital pesticide residue tacheometer
04/14/2010CN201438104U Real-time monitoring system for conductor icing of overhead transmission line
04/14/2010CN201438021U Control device of air-conditioning auxiliary electrical heater
04/14/2010CN201438012U Air conditioner
04/14/2010CN1963556B Apparatus for integrality checking proportion of cryo-current comparator and the method thereof
04/14/2010CN101694984A Asynchronous motor energy saver
04/14/2010CN101694595A Method and system for discovering a power source on a peripheral bus
04/14/2010CN101694515A Battery voltage detecting device of mobile battery charger
04/14/2010CN101694501A On-line detection method of exciting current of switching mode power supply transformer
04/14/2010CN101303373B Method for manufacturing optical fiber current sensor sensitivity coil
04/13/2010US7698079 Characterizing across-die process variation
04/13/2010US7698078 Electric vehicle communication interface
04/13/2010US7696742 Method and circuit for reducing noise when measuring intensity of electric current
04/08/2010WO2010040036A1 Apparatus and method for measuring active and reactive powers
04/08/2010US20100088660 Method for acquiring overshoot voltage and analyzing degradation of a gate insulation using the same
04/08/2010US20100085679 Method for using an rc circuit to model trapped charge in an electrostatic chuck
04/08/2010US20100085035 Method and apparatus for determining AC voltage waveform anomalies
04/08/2010US20100085034 Current Measurement Circuit, Current Detection Circuit And Saturation Prevention And Recovery Circuit For Operational Amplifier
04/08/2010US20100085031 Operating an Integrated Circuit at a Minimum Supply Voltage
04/08/2010DE102008049781A1 Verfahren und Messvorrichtung zur Messung des Ausgangsstroms einer getakteten Halbbrückenschaltung The method and measuring device for measuring the output current of a switched-mode half-bridge circuit
04/08/2010DE102008048830A1 Schaltungsanordnung mit Schmelzsicherung und Verfahren zum Ermitteln eines Zustands einer Schmelzsicherung Circuit arrangement with fuse and method for determining a state of a fuse
04/07/2010EP2172784A1 Voltage detecting device and power supply system using the same
04/07/2010EP2171483A1 Improved current sensor
04/07/2010CN201436756U Motor protector having function of high accuracy ammeter
04/07/2010CN201436638U Digital electric energy metering device for conventional transformer station
04/07/2010CN201436591U A voltage current monitoring system applied to power ageing test
04/07/2010CN1908681B Over-voltage monitoring sensor for AD electricity system
04/07/2010CN101692401A Optical fiber current transformer with optical fiber temperature acquisition and temperature compensation
04/07/2010CN101692361A Resistance device for sensing current
04/07/2010CN101692120A Measuring device and measuring method for measuring maximum available energy of series storage battery pack
04/07/2010CN101692105A Device for real-time detecting product of production line of remote control
04/07/2010CN101692104A Power quality and synchronized phasor monitoring device for power system
04/07/2010CN101692103A Testing method of parameters and characteristics of lightning strike of electric transmission line
04/07/2010CN101692102A Power frequency zero-flux mini-current sensor for capacitive equipment dielectric loss on-line monitoring
04/01/2010WO2010036545A2 Mutual capacitance measuring circuits and methods
04/01/2010WO2010035089A2 Method and apparatus for measuring direct currents flowing in an electric line
04/01/2010US20100079133 Heat sink mounting structure and electronic apparatus
04/01/2010DE102009041668A1 Stromsensor Current sensor
04/01/2010DE102009029696A1 Switched-Capacitor-Verstärkeranordnung mit niedrigem Eingangsstrom Switched-Capacitor amplifier arrangement with a low input current
03/2010
03/31/2010EP2169799A2 Directional detection of a ground fault
03/31/2010EP2169412A1 Electrical current measurement arrangement
03/31/2010EP2169411A1 Multiphase motor driving device
03/31/2010CN201434899Y Fault indicating device with current measuring function
03/31/2010CN201434888Y Temperature compensation type current sensing head
03/31/2010CN201434887Y On-line monitoring unit for secondary loop voltage drop
03/31/2010CN201434886Y Multifunctional insulator leakage current indicator
03/31/2010CN201434885Y Current sensing circuit
03/31/2010CN201434884Y Opening-closing device of open senor/transducer
03/31/2010CN201434883Y Rogowski coil electric quantity transducer
03/31/2010CN101688892A Method and device to predict a state of a power system in the time domain
03/31/2010CN101688889A RF detector with crest factor measurement
03/31/2010CN101688888A increased reliability in the processing of digital signals
03/31/2010CN101686035A Multiphase motor driving device
03/31/2010CN101685137A Method and device for monitoring a switching procedure and relay component group
03/31/2010CN101685134A Mainboard detection alarm circuit
03/31/2010CN101685111A Novel zero crossing detection circuit
03/31/2010CN101685110A Variable frequency memory alternating current acousto-optic electroscope
03/31/2010CN101685109A Current measurement in an inverter unit and a frequency converter
03/31/2010CN101685108A Interval overvoltage online monitoring device for electric power system and method thereof
03/31/2010CN100596331C High pressure measurement device and antitheft electric method for high-low pressure electric quantity measurement contrast
03/30/2010US7689374 Polyphase electric energy meter
03/30/2010US7689122 Polarity-insensitive signal detect circuit for use with any signal sequence
03/30/2010US7688057 Noise diagnosis of operating conditions for an electromagnetic flowmeter
03/30/2010US7688056 Particle having mesopore loaded with biological substance, sensor including the same, and method for detecting specimen
03/25/2010WO2010032995A2 Apparatus and method for monitoring voltages of cells of battery pack
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