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)
06/2014
06/18/2014CN102854435B High-temperature electric leakage testing system for diodes
06/18/2014CN102749542B Power quality monitoring device based on double-velocity double-range sampling
06/18/2014CN102680768B Mono-polar type voltage measurement sensor with self-correction and self-construct electric filed and measurement method
06/18/2014CN102680434B Light current spectrum high throughput testing device of materials under atmosphere environment
06/18/2014CN102510081B Zero-cross control circuit, method and system of photovoltaic network disconnection relay
06/18/2014CN102439463B Wiring testing device
06/18/2014CN102262172B Power monitoring method and device
06/18/2014CN102095995B Method and apparatus to monitor state of health of electrical connections between battery and generator
06/18/2014CN101910856B Self testing fault circuit interrupter apparatus and method
06/18/2014CN101908774B System and method for using stored electrical energy to quiet power sensitive measurement circuits
06/17/2014US8756024 Building energy consumption analysis system
06/17/2014US8754632 Integrated circuit with power state determination circuit
06/17/2014US8754629 Electrical hazard warning in audio signal probe
06/17/2014CA2836453A1 System and method for voltage and current sensing
06/12/2014WO2014088562A1 Isolated and self-calibrating voltage measurement sensor
06/12/2014WO2014087750A1 Power source circuit
06/12/2014WO2014086674A2 Device and method for irradiating objects with electron beam
06/12/2014WO2014086088A1 Device for measuring unbalanced current of common-tower double-circuit power transmission line
06/12/2014US20140159998 Current Detecting Circuit, Temperature Compensating Device and Display Device
06/12/2014US20140159753 Online alternating current detection device and method
06/12/2014US20140159744 Electrical device
06/12/2014US20140159711 Current sensing circuit and method thereof
06/12/2014US20140159702 Device and method for determination of a charge amount on a capacitive element, and a device and method for setting a circuit node at a predetermined voltage
06/12/2014DE102013204638A1 Vorrichtung zur Erfassung von Fehlerströmen Device for detecting fault currents
06/12/2014DE102012222928A1 Vorladeschaltung zum Laden eines Zwischenkreiskondensators Pre-charge circuit for charging an intermediate circuit capacitor
06/12/2014DE102012222726A1 Method for monitoring current of battery cell, involves forming current comparison value using battery cell current and filter, and comparing current comparison value with predetermined limiting reference value
06/12/2014DE102012222721A1 Batteriemanagementsystem und Batteriesystem Battery management system and battery system
06/12/2014DE102012222720A1 Batteriemanagementsystem und Batteriesystem Battery management system and battery system
06/12/2014DE102012111922A1 Method for measuring phase current value of electric motor in electronic power steering system of motor vehicle, involves amplifying current-dependent voltage with adjustable gain factor, and automatically adjusting gain factor
06/11/2014EP2741092A1 Estimating an electricity supply's fundamental frequency
06/11/2014EP2740201A2 A controller for a voltage converter
06/11/2014CN203645870U 一种太阳能路灯在线电量检测系统 A solar power street line detection system
06/11/2014CN203645371U 共正极结构太阳能充电控制器的电池板测量电路 Total positive structure of the solar charge controller panels measuring circuit
06/11/2014CN203644978U 多功能接地线操作杆 Multi-function operating rod grounding wire
06/11/2014CN203643766U 一种在环境控制系统中使用的控制器 Controller for use in a environmental control system
06/11/2014CN203643554U 智能型线路故障指示器 Smart line fault indicator
06/11/2014CN203643550U 绝缘监察远程报警装置 Insulation monitoring remote alarm device
06/11/2014CN203643502U 全自动微电流检测装置 Automatic micro-current detection device
06/11/2014CN203643501U 智能剩余电流动作断路器电压采样电路 Smart residual current operated circuit breaker voltage sampling
06/11/2014CN203643500U 一种低压报警电路 A low-pressure alarm circuit
06/11/2014CN203643499U 应用于环路检测的反馈检测电路 Applied to the feedback loop detection detection circuit
06/11/2014CN203643498U 双电源转换开关的电压采样电路 Dual power switch voltage sampling circuit
06/11/2014CN203643497U 一种光伏系统电流检测电路 A photovoltaic system current detection circuit
06/11/2014CN203643496U 微弱信号电流传感器测量电路 Weak signal current sensor circuit
06/11/2014CN203643495U 自适应宽量程电流电压转换装置 Adaptive wide range of current and voltage conversion device
06/11/2014CN203643494U 一种隔离的电流检测电路 A separator of the current detection circuit
06/11/2014CN103854885A Insulating draw rod used for built-in resistor type voltage sensor
06/11/2014CN103853056A Power voltage identification apparatus and power source
06/11/2014CN103852743A Radio frequency coil monitoring method and device, test device, and magnetic resonance system
06/11/2014CN103852670A Transient state electricity energy quality information acquisition module with high sampling rate
06/11/2014CN103852659A Novel SPD on-line detection device
06/11/2014CN103852630A Supply voltage detection method and device
06/11/2014CN103852629A Bus shielding layer potential monitoring device
06/11/2014CN103852628A Overvoltage protection circuit and overvoltage detection circuit thereof
06/11/2014CN103852627A Alternating-current circuit current probing device
06/11/2014CN103852626A Direct current circuit detection device
06/11/2014CN103852625A Compressor Protection And Grid Fault Detection Device
06/11/2014CN103852624A Hand-held convertor transformer core grounding current tester
06/11/2014CN103852623A Device for acquiring voltage and current of capacitive photovoltaic cell
06/11/2014CN103852622A Battery pack unit battery voltage detection circuit
06/11/2014CN103852621A Ultrasonic generator working current reading method and circuit
06/11/2014CN103852620A Self-adaptation test method of automatic reclosing lock
06/11/2014CN103852619A Open type current sensor based on closed loop fluxgate technology
06/11/2014CN103852618A Voltmeter with heating function
06/11/2014CN103852617A Ampere meter with heating function
06/11/2014CN103852616A Voltage testing module and testing device
06/11/2014CN103852615A Portable mobile terminal and method for measuring current of external-connection device
06/11/2014CN103852614A Circuit for detecting leakage current of busbar
06/11/2014CN103852613A Radiation current sensing method and special sensor
06/11/2014CN103852203A Identification method of ultrasonic bonding pressure
06/11/2014CN103845025A Dish washing machine and input voltage detection and protection circuit and method thereof
06/11/2014CN102788965B Voltage modulation ratio verifying and measuring method
06/11/2014CN102680770B Differential measurement method and device for arc current density
06/11/2014CN102621376B Method for precisely and synchronously measuring multiple high and low-potential electric parameters and device
06/11/2014CN102608485B Detection method for zero-sequence current loops of transformer substations
06/11/2014CN102520231B Detection circuit of switch magnetic resistance motor winding voltage and detection method thereof
06/11/2014CN102288813B Fuel cell stack monolithic voltage inspection system capable of detecting positive and negative voltages
06/11/2014CN102193018B System and method for sensing an amplifier load current
06/11/2014CN102066956B Electrical anomaly detection method and system
06/11/2014CN102029965B Passenger detection system
06/10/2014US8751055 Distributed power supply system
06/10/2014US8749274 Level sensitive comparing device
06/10/2014US8749273 Power amplifier saturation detection
06/10/2014US8749272 Apparatus and method for three-level input detection
06/10/2014US8749224 Voltage detection circuit and method for controlling the same
06/10/2014US8749223 Galvanic isolation device and method
06/10/2014US8749222 Method of sensing magnitude of current through semiconductor power device
06/10/2014CA2719513C Acquiring phasors outside the frequency tracking range for power protective relays
06/10/2014CA2504229C Electric current measuring device, current sensor, electric trip unit and breaking device comprising such a measuring device
06/05/2014WO2014084980A1 Prediction of electrical service interruption
06/05/2014WO2014084628A1 Apparatus for measuring current of battery and method therefor
06/05/2014WO2014084565A1 Apparatus for estimating battery charging state, and method therefor
06/05/2014WO2014083675A1 Method for measuring field current of alternating current generator, and control apparatus for alternating current generator
06/05/2014WO2014082438A1 Addressable test circuit for testing transistor key parameters, and test method thereof
06/05/2014US20140156210 Control Voltage Signal Synthesis System and Method
06/05/2014US20140153301 Ac signal detector and the method thereof
06/05/2014US20140152292 Decomposition and mitigation of a disturbance being present at an electric connection between an electric power generating system and a power grid
06/05/2014DE202014003924U1 Federkontakt-Schaltstift für die Prüfung eines Prüflings Spring-contact switch pin for testing a device under test
06/05/2014DE102012222055A1 Messanordnung zum Messen eines Effektivwertes einer Wechselspannung in einer Handwerkzeugmaschine Measuring device for measuring an effective value of an AC voltage in a power tool
06/05/2014DE102012221936A1 Diagnostic device for e.g. power generator mounted in motor vehicle, has monitoring device that monitors malfunctioning of power source by comparing voltage waveform and/or current path with reference waveform and/or current path
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