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)
11/2010
11/11/2010US20100287078 Accumulator for passenger cars and commercial vehicles
11/11/2010US20100283449 Communication outlet identification system using ethernet signals
11/11/2010DE102009012794B3 Hysteresearmer Sensor Hysteresearmer sensor
11/10/2010EP2249452A1 Battery system
11/10/2010EP2247955A2 Compressor protection and grid fault detection device
11/10/2010CN201629561U 阀门控制及故障保护装置 Valve control and fault protection device
11/10/2010CN201629036U Power resource energy consumption monitoring system for teaching areas
11/10/2010CN201628744U Suspension high-potential analog quantity monitoring equipment
11/10/2010CN201628743U Device for detecting power quality disturbing signal
11/10/2010CN201628742U 1000-kilovalt ultra-high voltage alternating-current non-contact electroscope
11/10/2010CN201628741U Suspension type charged display suitable for tubular buses
11/10/2010CN201628740U Flange mounting type voltage sensor
11/10/2010CN201628596U Working condition detecting system for crawler traveling hydraulic support
11/10/2010CN101882795A Regenerative electric energy feedback method for elevator and device thereof
11/10/2010CN101881807A Alternating-current measuring device for quantum efficiency of solar cell
11/10/2010CN101881806A Organic semiconductor device characteristic measuring instrument
11/10/2010CN101881801A Photovoltaic inverter leakage current detection method
11/10/2010CN101881794A AC line signal detection device and method and power supply device
11/10/2010CN101881793A Alternating current power failure detection method and warning circuit
11/10/2010CN101881792A Transient sinusoidal signal sequence component access method of electric power system
11/10/2010CN101881791A Voltage detection device
11/10/2010CN101881669A Real-time closed-loop measuring and tracking method of half-wave voltage of integrated electro-optical phase modulator
11/10/2010CN101577979B Wireless sensor network device of photovoltaic power station
11/10/2010CN101527237B Method for improving emission characteristic of film ZnO field
11/10/2010CN101505060B Frequency conversion method for implementing multi-sampling rate signal by using narrow band filtering in electricity grid
11/10/2010CN101487858B 1000kV extra-high voltage AC non-contact type electricity checking method and apparatus
11/10/2010CN101464477B Micro-current detection method and device in great current interference surroundings
11/10/2010CN101320068B Nano-second electrostatic discharge current experiment equipment based on sheet type piezoresistor
11/10/2010CN101082640B Measurement of the current of a frequency converter
11/09/2010US7831402 Method and related device for estimating two currents flowing simultaneously through respective windings of a poly-phase electrical load driven in SVM mode
11/09/2010CA2516396C Method of programming a hearing aid by a programming device
11/09/2010CA2406444C Apparatus and method for the measurement and monitoring of electrical power generation and transmission
11/04/2010WO2010126486A1 Method of and circuit for brown-out detection
11/04/2010WO2010125733A1 Current control apparatus and protection apparatus
11/04/2010WO2009123845A9 Programmable gain trans-impedance amplifier overload recovery circuit
11/04/2010US20100280797 Method for detection of charge originating from lightning
11/04/2010US20100277990 Integrated circuit having memory repair information storage and method therefor
11/04/2010US20100277183 One sheet test device and method of testing using the same
11/04/2010US20100275627 Motor current detecting device and air conditioning apparatus
11/04/2010DE202007019127U1 Vorrichtung zur Messung eines von einem Wechselstromanteil überlagerten Gleichstromanteils eines in Leitern von Wechselstrombahnen fließenden Stroms A device for measuring one of an alternating current component superposed a direct current component in conductors of alternating current paths flowing stream
11/04/2010DE102008048830B4 Schaltungsanordnung mit Schmelzsicherung und Verfahren zum Ermitteln eines Zustands einer Schmelzsicherung Circuit arrangement with fuse and method for determining a state of a fuse
11/03/2010CN201623706U Low-voltage power line carrier communication module
11/03/2010CN201623508U Vehicle-mounted power battery charger with CAN communication function
11/03/2010CN201622674U Home circuit overload alarm device
11/03/2010CN201622338U Direct-current high-voltage power supply comprehensive tester
11/03/2010CN201622325U Keypad testing device and television testing system
11/03/2010CN201622316U Capacitive equipment current-leaking measuring device
11/03/2010CN201622303U Anti-interference alternating current zero-crossing detection circuit
11/03/2010CN201622302U Overvoltage and overcurrent detecting circuit
11/03/2010CN201622301U Novel electricity measuring device
11/03/2010CN201622300U High-frequency voltage measurement device
11/03/2010CN201622299U Novel giant magneto resistance GMR integrated current sensor
11/03/2010CN201622088U Ultrasonic gas meter
11/03/2010CN101876723A Sensing fiber used in reflective all-fiber current sensor
11/03/2010CN101876684A Failure detecting and protecting method of controlled silicon and device thereof
11/03/2010CN101876681A Method for detecting ground short circuit of output side of AC servo driver or low voltage inverter
11/03/2010CN101876680A Method and device for assessing protection performance of surge protection device
11/03/2010CN101876673A Extreme high voltage direct-current non-contact distance-measurement electricity-testing method
11/03/2010CN101876672A Device for quickly debugging and testing grid voltage of power amplification module and method thereof
11/03/2010CN101876671A High-precision current sampling circuit used in servo system
11/03/2010CN101876670A Battery monomer voltage measuring circuit and compensation method for measuring error thereof
11/03/2010CN101876669A Device and runner blockage detection method
11/03/2010CN101876474A Method for automatically detecting lack of refrigerant in air-conditioner
11/03/2010CN101499659B Transforming plant distributed state estimation method based on Kirchhoff's current law
11/03/2010CN101393247B Sensing method based on multidimensional difference decoupling powerline running state parameter
11/03/2010CN101178417B High-precision rogowski current transformer
11/02/2010US7827068 Network-based system for selecting or purchasing software products
11/02/2010US7826933 Adaptive relaying controlled by autonomous event detection
11/02/2010US7825699 Receiver circuit having compensated offset voltage
11/02/2010US7825698 Method and apparatus for systematic and random variation and mismatch compensation for multilevel flash memory operation
11/02/2010US7825647 Method for locating buried pipes and cables
10/2010
10/28/2010WO2010122255A1 Non-invasive device for diagnosing operational defect(s) in at least one communication network
10/28/2010US20100271038 Differential-mode current sensor method
10/28/2010US20100271005 Apparatus for Sensing an Output Current in a Communications Device
10/28/2010US20100271004 Faraday effect current sensor
10/27/2010CN201616651U 电流信号检测装置 A current signal detecting means
10/27/2010CN201615925U 智能化电工测量仪 Intelligent electrical measuring instrument
10/27/2010CN201615924U 电流电压采样电路 Current and voltage sampling circuit
10/27/2010CN201615923U 交流电压测量电路 AC voltage measuring circuit
10/27/2010CN201615922U 可改变显示方向的单极高压带电指示器 Can change the direction of the unipolar voltage live display indicator
10/27/2010CN201615921U 光学电流互感器及其光电信息处理器 Optical current transformer and Optical Information Processor
10/27/2010CN201615920U 交流电流毫安表 AC current milliammeter
10/27/2010CN201615919U 电能表电流采样装置 Meter current sampling device
10/27/2010CN101873745A Vehicle lamp lighting control device
10/27/2010CN101873075A Collecting circuit for direct current bus
10/27/2010CN101871986A Method for identifying single-phase stable grounding of medium-voltage distribution network
10/27/2010CN101871984A Device and method for detecting electric energy quality of ships
10/27/2010CN101871982A Method and circuit for detecting phase sequence and asymmetrical voltage of three phase current
10/27/2010CN101871981A Automatic detection and regulation method and circuit for air conditioner
10/27/2010CN101871970A Wireless terminal and signal scanning method thereof
10/27/2010CN101871967A Metering method of electric energy meter
10/27/2010CN101871965A Method for detecting zero crossing time, frequency and phase difference of power sinusoidal signals
10/27/2010CN101871964A Remote counter for lightning arrester
10/27/2010CN101871963A Power voltage detection circuit
10/27/2010CN101871962A Current detecting method and circuit
10/27/2010CN101871961A Multi-functional test pencil
10/27/2010CN101871960A Test method of transformer
10/27/2010CN101871959A Optical fiber Fabry-perot current sensor and preparation method thereof
10/27/2010CN101871813A Method and device for monitoring input optical power of avalanche photoelectric diode
10/27/2010CN101185003B Supply voltage monitoring
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