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)
05/2014
05/28/2014CN103825250A 快速过欠压检测电路 Fast over-voltage detection circuit
05/28/2014CN103823140A 基于道路-回路方程的电网拓扑错误辨识系统及其方法 Based on the road - loop equation grid topology error identification system and method
05/28/2014CN103823135A 一种用于多频快速敏感度测试中频点幅度调整方法 A fast multi-frequency amplitude sensitivity test IF-point adjustment method
05/28/2014CN103823126A 一种三相电流不平衡监测方法及系统 A three-phase current imbalance monitoring method and system
05/28/2014CN103823119A 一种电网绝缘检测的新方法 A new method for the detection of the grid insulation
05/28/2014CN103823106A 光学电流互感器 Optical current transformer
05/28/2014CN103823105A 一种输电线路调试用无线测量系统 One kind of transmission line debugging wireless measurement system
05/28/2014CN103823104A 一种单电源供电的自动量程正负电压测量电路 A single-supply range of plus or minus automatic voltage measuring circuit
05/28/2014CN103823103A 过电压在线监测装置以及方法 Over-voltage line monitoring device and method
05/28/2014CN103823102A 一种通停电报警方法及装置 One kind of communication failure alarm method and apparatus
05/28/2014CN103823101A 一种测量带避雷线的输电线路杆塔冲击分流系数的方法 A method of measuring lines with lightning split transmission line tower impact factor
05/28/2014CN103823100A 一种高准确度电流比较仪及自校验方法 A high-accuracy current comparator and self-calibration method
05/28/2014CN103823099A 一种液体电流密度计 A liquid current density meter
05/28/2014CN103823098A 一种预放电电流检测装置 One kind of pre-discharge current detecting means
05/28/2014CN103823097A 混合电流传感器及安装该传感器的方法 Mixed current sensor and a method of installing the sensor
05/28/2014CN103823096A 过电压在线监测装置 Over-voltage line monitoring device
05/28/2014CN103817616A 声光测电钳子 Sound and light measuring electrical pliers
05/28/2014CN102788906B 高频阻抗测试仪 High Frequency Impedance Tester
05/28/2014CN102590594B 基于暂态热路模型的架空导线允许电流的确定方法与装置 Based on overhead wires transient thermal circuit model allows current to determine the method and apparatus
05/28/2014CN102539889B 多路高压小电流检测电路 Multi-channel high voltage low current detection circuit
05/28/2014CN102449491B 聚合物光波导电流传感器 Polymer waveguide current sensor
05/28/2014CN102017380B 电流检测电路及变压器电流测定系统 The current detection circuit and the transformer current measurement system
05/27/2014US8736283 Advanced obscured feature detector
05/27/2014US8736249 High frequency power detector circuit and radio communication device
05/27/2014US8736248 Detection circuit and a method for detecting a wrong supply voltage
05/22/2014WO2014077522A1 Device and method for relay fusion detection for battery system
05/22/2014WO2014077049A1 Voltage measurement circuit
05/22/2014WO2014075989A1 Protective circuit for a current transformer and current transformer with a protection circuit
05/22/2014WO2014075361A1 Voltage detection apparatus and method
05/22/2014US20140142879 Differential voltage measurement
05/22/2014US20140142878 Density function centric signal processing
05/22/2014US20140142877 Systems and methods for monitoring current values
05/22/2014US20140139244 Apparatus for employing low ohmic alloy conductors and method for simplifying current drain data retrieval
05/22/2014US20140139206 Voltage detecting circuit and method for measuring characteristic of transistor
05/22/2014US20140139204 Coupled heterogeneous devices for ph sensing
05/22/2014US20140139203 Current detector
05/22/2014DE102012221130A1 Diagnostic system of motor car test device, has signal and sound generators that output acoustic signal for a predetermined period, if monitored operating voltage of test object deviates from predetermined voltage range
05/22/2014DE102012220955A1 Bestimmung von Strangströmen an einem Elektromotor Determination of phase currents to an electric motor
05/22/2014DE102012111086A1 Verfahren und Vorrichtungen zum Bestimmen eines Ladezustands A method and apparatus for determining a state of charge
05/21/2014EP2733497A1 Method for estimating a frequency of a harmonic in an AC current passing to/from an ac machine
05/21/2014EP2732488A1 Device for conducting an electric current
05/21/2014EP2732295A1 Device for measuring an electric current
05/21/2014CN203607869U 一种新型锂电池充电状态自动检测控制装置 A new lithium battery state of charge control device to automatically detect
05/21/2014CN203607844U 智能型电源防雷器 Intelligent power mine
05/21/2014CN203607817U 一种电源过压欠压过流烧毁报警复位上电保护装置 A supply overvoltage undervoltage alarm reset overcurrent burned on power protection device
05/21/2014CN203606471U 一种燃气具电池电量不足指示装置 A gas having a low battery indicator means
05/21/2014CN203606447U 充电桩的控制导引检测电路和装置 Control pilot detection circuit and device charging pile
05/21/2014CN203606428U 一种光纤电流传感器 A fiber optic current sensors
05/21/2014CN203606427U 一种适用于主动配电网的电压采集装置 One for active distribution grid voltage acquisition device
05/21/2014CN203606426U 一种电动汽车动力电池组单体电池电压采集系统 An electric vehicle power battery cell voltage acquisition system
05/21/2014CN203606425U 一种无线电流传感器 A wireless current sensor
05/21/2014CN203606424U 一种变压器铁芯接地电流在线监测装置 A transformer core grounding current online monitoring device
05/21/2014CN203606423U 三通道三类型电压监测仪 Three-channel three types of voltage monitor
05/21/2014CN203606422U 一种过零检测电路 One kind of zero-crossing detection circuit
05/21/2014CN203606421U 一种改进的电流互感器 An improved current transformer
05/21/2014CN203606420U 一种集成芯片电压采样电路 An integrated circuit chip voltage sampling
05/21/2014CN203606419U 一种干涉环式全光纤电流互感器 An interference ring all-optical current transformer
05/21/2014CN203606418U 一种纵向调制互易型光学电压传感器 One kind of reciprocal longitudinal modulation type optical voltage sensor
05/21/2014CN203606417U 基于普克尔效应的双晶体光学电压传感单元及电压互感器 Pockels effect of double-crystal based optical voltage sensing unit and voltage transformers
05/21/2014CN203606416U 一种隔热电流传感器 A thermal barrier current sensor
05/21/2014CN203606415U 一种在线式变压器铁芯接地电流监测装置 An on-line transformer core grounding current monitoring device
05/21/2014CN203606414U 一种变压器铁芯接地电流监测装置 A transformer core grounding current monitoring device
05/21/2014CN203606029U 一种汽车仪表亮度检测装置 An automobile instrument brightness detection device
05/21/2014CN203602733U 一种铝电解槽电流分布测量工具 One kind of aluminum cell current distribution measurement tools
05/21/2014CN103814298A 自动检测电池插入的系统和方法 System and method for automatic detection of battery insertion
05/21/2014CN103814297A 电流检测装置 Current detecting means
05/21/2014CN103813027A 测试板 Test Board
05/21/2014CN103812322A 一种电池管理系统的能量复位监测电路 A battery management system for energy monitoring circuit reset
05/21/2014CN103812216A 一种区域电网暂态过电压监测系统 Of a regional power grid transient overvoltage monitoring system
05/21/2014CN103809075A 一种高压泄露表 A high-pressure leaks table
05/21/2014CN103809057A 电力系统节点电压无功运行状态检测方法及系统 Node voltage and reactive power system operating state detection method and system
05/21/2014CN103809047A 一种用电器集中监控装置 One kind of centralized monitoring device with appliances
05/21/2014CN103809017A 一种高压900v漏电流检测装置 A high voltage 900v leakage current detection device
05/21/2014CN103809016A 一种用于电气火灾监控的漏电流采样电路校验方法 An electrical fire monitoring leakage current sampling circuit verification method for
05/21/2014CN103809015A 辊轴导电检测仪 Roll axis conductive detector
05/21/2014CN103809014A 一种检测单元、检测电路和检测方法 A method of detecting means, the detection circuit and a detection method
05/21/2014CN103809013A 一种高压验电装置 A high voltage electrical inspection device
05/21/2014CN103809012A 基于光学电场传感器的电压波形信号同步输出装置 Synchronous output device based on voltage waveform signal optical electric field sensor
05/21/2014CN103809011A 一种避雷器阻性电流测试工具 An arrester resistive current testing tools
05/21/2014CN103809010A 用于确定中压网络的每相的电压和功率的装置及方法 Apparatus and method for each phase the voltage and medium voltage power networks for determining
05/21/2014CN103809009A 变压器一次电压确定方法和系统及包括确定系统的变电站 Transformer primary voltage to determine the methods and systems, and includes a substation to determine the system
05/21/2014CN103809008A Tmr电流传感器及电流检测方法 Tmr current sensor and current detection methods
05/21/2014CN103809007A 无桥pfc电路电感电流采样装置及方法 No bridge pfc circuit inductor current sampling apparatus and method
05/21/2014CN103809006A 一种利用光栅检测微电流的装置 A grating detection device utilizes micro-current
05/21/2014CN102707122B 基于箕舌线的变步长lms谐波电流检测方法 Variable step size Witch of Agnesi's lms harmonic current detection method based on
05/21/2014CN102654529B 一种测量电弧电流密度分布的装置 An apparatus for measuring the arc current density distribution
05/21/2014CN102645593B 一种确定液晶显示器的公共电极电压的方法及装置 A method of determining the voltage of the common electrode of the liquid crystal display method and apparatus
05/21/2014CN102495265B 一种mosfet开关元件的电流采样电路 Current sampling circuit one kind mosfet switching element
05/20/2014US8729914 Detection of the conduction state of an RC-IGBT
05/15/2014WO2014074290A1 Capacitive loads presence and type detecting system
05/15/2014WO2014072760A1 High bandwidth current sensor and method therefor
05/15/2014WO2014072733A2 Voltage measurement
05/15/2014WO2014072383A1 Absolute value current-sensing circuit for step-down dc-to-dc converters with integrated power stage
05/15/2014WO2014071773A1 Field test method and test apparatus for membrane electrode status of fuel cell stack
05/15/2014WO2014071674A1 Direct-current isolation buck convertor and bus voltage detection circuit thereof
05/15/2014WO2014071662A1 Method for removing attenuating dc component from power system fault signal
05/15/2014US20140132417 Generator coupling kit and methods thereof
05/15/2014US20140132249 Mixed current sensor and method for fitting said sensor
05/15/2014US20140132247 Current sensor
05/15/2014US20140132244 Finger voltage sensor
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