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)
10/2011
10/12/2011	CN202008502U Frequency selection controlling means for grounding parameter measurement in heavy current method
10/12/2011	CN202008501U Digital measuring device for frequency converter output voltage
10/12/2011	CN202008500U Wide-range voltage data acquisition circuit with 485 isolation communication
10/12/2011	CN202008499U Current sampling circuit
10/12/2011	CN202008498U Annularly packaged Hall integrated circuit
10/12/2011	CN202006735U Disc-free braking system
10/12/2011	CN102216795A Apparatus and method for monitoring voltages of cells of battery pack
10/12/2011	CN102214993A Load drive circuit with current bidirectional detecting function
10/12/2011	CN102213742A Method for the simulation of defects with spark testers and spark testers
10/12/2011	CN102213736A Method and system for detecting offline state of locomotive pantograph net
10/12/2011	CN102213731A Overcurrent phase-missing remote alarm for distribution transformer
10/12/2011	CN102213730A Low-voltage alarm circuit
10/12/2011	CN102213729A Optical fiber current sensing device and optical fiber current sensing system
10/12/2011	CN101718809B System and method for acquiring power quality data
10/12/2011	CN101477170B Electric power wave-recording sampling time-delay detection system and method
10/12/2011	CN101369399B Circuit test device
10/12/2011	CN101281216B Voltage measuring circuit using scan mode
10/11/2011	US8035317 Optocoupler system with reduced power consumption and pulse width distortion
10/11/2011	DE202011050897U1 Medizintechnisches Interfacemodul, medizintechnisches System und Verwendung eines Interfacemoduls Medical Technical Interface Module, medical device system and use an interface module
10/06/2011	WO2011121018A1 Monitoring of an energy store which has storage units connected in series
10/06/2011	US20110246110 Simple and stable reference for ir-drop and supply noise measurements
10/06/2011	US20110246109 Apparatus and method to characterize multijunction photovoltaic solar cells
10/06/2011	US20110246108 Presentation of unbalance information for electrical asset management
10/06/2011	US20110246107 Imaging apparatus and method of predicting the photoreceptor replacement interval
10/06/2011	US20110241655 Bidirectional 3 phase power meter for compensating reverse load flow and method for metering thereby
10/06/2011	US20110241650 Electrochemical sensor for disinfectants
10/06/2011	US20110241649 Current sensor
10/06/2011	DE102010014387A1 Verfahren zur Simulation von Fehlern bei Durchlaufspannungsprüfern und Durchlaufspannungsprüfer Method for the simulation of errors in continuous voltage detectors and pass voltage tester
10/06/2011	DE102010013322A1 Detektionsschaltung und Verfahren zum Betreiben einer Detektionsschaltung Detection circuit and method of operating a detection circuit
10/05/2011	EP2372376A1 Method and arrangement for estimating angular frequency
10/05/2011	CN202004438U Secondary side voltage protecting and measuring device for V-V type voltage transformer
10/05/2011	CN202004426U Low-voltage line protection circuit
10/05/2011	CN202004216U Novel socket
10/05/2011	CN202003016U Voltage testing instrument
10/05/2011	CN202003002U Intelligent digital inter-turn voltage endurance integrated test system
10/05/2011	CN202002983U Automatic test system for input current characteristics of novel multi-parallel type boost chopper
10/05/2011	CN202002982U Automatic testing device of valve aging
10/05/2011	CN202002977U Measuring device for measuring capacitance of shunt capacitor group
10/05/2011	CN202002976U Device for testing resistance and fusing current of gold bonding wire
10/05/2011	CN202002974U Module
10/05/2011	CN202002973U Network multifunctional power meter
10/05/2011	CN202002972U digital detector for charging and discharging of capacitor
10/05/2011	CN202002971U Digital voltmeter
10/05/2011	CN202002970U Intelligent wireless counting device for overvoltage protector
10/05/2011	CN202002969U Lightning stroke counter of lightning protection box
10/05/2011	CN202002968U Electronic lightning stroke times collecting system of lightning arrester
10/05/2011	CN202002967U Overload warning device of handheld electric tool
10/05/2011	CN202002966U Overload alarm circuit structure and socket for integrating the same
10/05/2011	CN202002965U Multifunctional electricity test pen for electrician
10/05/2011	CN202002964U Detection circuit for power grid power failures
10/05/2011	CN202002963U Embedded low-power consumption electric instrument
10/05/2011	CN202002962U Lightning current monitoring device for wind generating set
10/05/2011	CN202002961U Vehicle meter used for detecting vehicle power supply voltage and engine water temperature
10/05/2011	CN202002960U Faradism-preventing earthing device
10/05/2011	CN102209905A Apparatus and method for synchronizing and measuring the current and voltage of a secondary battery pack
10/05/2011	CN102209900A Circuit for measuring the efficient current of a signal to be monitored
10/05/2011	CN102209425A Diagnostic device of radio frequency discharge plasma
10/05/2011	CN102208817A Reactive-power-disturbance-based grid-connected island detection method for photovoltaic system
10/05/2011	CN102208802A Power switching tube overcurrent detection and overcurrent protection circuit
10/05/2011	CN102207899A Device for testing universal serial bus port
10/05/2011	CN102207538A 多功能干簧管测试仪 Multifunction reed tester
10/05/2011	CN102207519A Current detecting method and circuit for power management integrated circuit
10/05/2011	CN102207518A Method and device for detecting effective value of alternating current (AC) voltage
10/05/2011	CN102207517A Method for testing mean current of circuits by Farad capacitor
10/05/2011	CN102207516A Measuring device for measuring a current flowing in a contact rail
10/05/2011	CN102206996A Weak signal detector
10/05/2011	CN101788599B Current acquisition system fault detection and processing method for mild hybrid electric vehicle
10/05/2011	CN101655518B High voltage capacitive-type equipment leakage current-resistance sampling sensor and installation method thereof
10/05/2011	CN101299050B Method for detecting voltage stability based on power transfer path
10/05/2011	CN101256211B Transformer multifunctional monitoring system
10/04/2011	US8031045 Apparatus and method for an A/B RF redundant sensing switch
10/04/2011	US8030972 High-speed latched comparator circuit with variable positive feedback
10/04/2011	US8030945 Group of circuits and testing method thereof and testing machine thereof
10/04/2011	US8030913 Detector circuit with improved bandwidth
09/2011
09/29/2011	WO2011119790A1 Failsafe oscillator monitor and alarm
09/29/2011	WO2011119202A2 Systems for monitoring power consumption
09/29/2011	US20110238346 Electrostatic discharge automatic detection system
09/29/2011	US20110238345 System, method and computer program for detecting an electrostatic discharge event
09/29/2011	US20110235979 Managed fiber connectivity systems
09/29/2011	US20110234307 Countermeasure method and device against an attack by fault injection in an electronic microcircuit
09/29/2011	US20110234256 Power generation system and sensing system
09/29/2011	US20110234242 Forklift truck with a device for detecting a weight load
09/29/2011	US20110234205 Circuit for measuring the effective current of a signal to be monitored
09/29/2011	US20110234204 Radio-frequency power amplifier
09/29/2011	US20110234202 Optical voltage sensor
09/29/2011	US20110234199 Distributed safety monitoring system provided with a safety loop and method of testing such a system
09/29/2011	DE102011005994A1 Sensorgehäuse und Verfahren zum Herstellen eines Sensorgehäuses Sensor housing and method of manufacturing a sensor housing
09/29/2011	DE102010012834A1 Messanordnung zur Erfassung von Wechselströmen Measuring arrangement for detecting alternating currents
09/28/2011	EP2368314A2 Primary-side based control of secondary-side current for a transformer
09/28/2011	CN201995164U Electrifying circuit of LED driving chip
09/28/2011	CN201994644U 一种断路器的过电流保护装置 Overcurrent protective device of a circuit breaker
09/28/2011	CN201994637U 双星型网络检测的电机综合保护器 Dual star network detection Motor Protector
09/28/2011	CN201994627U 具多功能电源控制芯片接脚的控制电路及侦测电路 A multi-function power control chip and pin control circuit detection circuit
09/28/2011	CN201994474U 智能工艺接地转接箱 Intelligent Process grounding adapter box
09/28/2011	CN201993424U 半导体激光器liv测试系统 Semiconductor lasers liv test system
09/28/2011	CN201993419U 一种高压验电器报警装置 A high-pressure electroscope alarm device
09/28/2011	CN201993418U 10kV电缆验电器 10kV cable electroscope
09/28/2011	CN201993417U 有强弱两档的高灵敏感应式测电器 There are two tranches of sensitive inductive strength measured electrical
09/28/2011	CN201993416U 中间电压检测电路 Intermediate voltage detecting circuit
09/28/2011	CN201993415U 电动叉车直流电流动态检测装置 Electric forklift DC current dynamic detection device

1 ... 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 ... 299