Patents for G01R 25 - Arrangements for measuring phase angle between a voltage and a current or between voltages or currents (2,594) |
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07/23/2014 | CN103941105A 时序分析装置及时序分析方法 Timing analysis and timing analysis device |
07/23/2014 | CN103941093A 一种双向dft对称补偿相位测量方法及其装置 A two-way dft compensation phase measuring method and device symmetry |
07/23/2014 | CN102650692B 利用北斗三频观测量进行周跳探测与修复的方法 Compass concept utilizing tri-band measurement cycle slip detection and repair methods |
07/23/2014 | CN102590645B 采用单极核相装置对交流高压供电线路进行核相的方法 Unipolar device using the method of nuclear phase AC high voltage power lines to nuclear phase |
07/22/2014 | US8786315 Phase frequency detector |
07/17/2014 | WO2014108181A1 Phase detector |
07/16/2014 | CN103926478A 一种万能核相装置及其核相方法 A versatile device and the nuclear phase nuclear phase method |
07/16/2014 | CN103926463A 一种数据延拓式相关的相位差测量方法 A data type associated extension phase measurement methods |
07/15/2014 | US8781771 Measurement of material properties |
07/15/2014 | US8779951 Multi-bit delta-sigma time digitizer circuit and calibration method thereof |
07/15/2014 | US8779787 Apparatus and method for determining variation in a predetermined physical property of a circuit |
07/09/2014 | CN203705547U 抽油机电机的功率因数角测量电路 Power factor angle measurement circuit pumping motors |
07/09/2014 | CN203705546U 一种天线相位的测试系统 An antenna phase test system |
07/09/2014 | CN103913633A 基于多频正弦信号的高频谱分辨率相位谱测量装置及方法 Apparatus and method based on multi-frequency sinusoidal signal phase spectrum of high spectral resolution measurements |
07/09/2014 | CN102735934B 基于微机械砷化镓基的悬臂梁相位检测器及检测方法 GaAs-based micromechanical cantilever phase detector and detection method based on |
07/09/2014 | CN102735933B 基于微机械硅基固支梁的相位检测器及检测方法 Micromachined silicon phase detector clamped beams and detection method based on |
07/08/2014 | US8775108 Method and architecture for pre-bond probing of TSVs in 3D stacked integrated circuits |
07/08/2014 | US8774977 Multiphase electrical power construction and assignment at minimal loss |
07/02/2014 | CN203688633U 一种高压变频器的四象限单元三相输入电压采样电路 A three-phase four-quadrant cell voltage inverter input voltage sampling circuit |
07/02/2014 | CN102818921B 一种基于迭代傅里叶变换计算交流电流信号幅值和相位的方法 A calculation based on iterative methods transform alternating current signal amplitude and phase of the Fourier |
07/02/2014 | CN102680784B 多调度中心广域测量系统联合低频振荡在线监测方法 Multi-joint dispatch center WAMS low frequency oscillation line monitoring method |
07/02/2014 | CN102539975B 基于电压相位比较的10kV合并单元数据同步在线检测方法 The combined unit data voltage 10kV phase comparison detection method based on synchronous online |
06/26/2014 | US20140180617 Inverter-driven rotary electric machine, phase-to-phase insulation partial discharge inspection method and phase-to-phase insulation partial discharge inspection apparatus |
06/25/2014 | CN203672984U 便携式网络分析仪 Portable Network Analyzer |
06/25/2014 | CN203672971U 一种远程相位标定装置 A long-range phase calibration device |
06/25/2014 | CN103886700A 一种基于相位检测的防盗系统 An anti-theft system based on phase detection |
06/25/2014 | CN103884923A 中置柜专用核相车 Center cabinet dedicated nuclear phase Cart |
06/25/2014 | CN103884910A 一种适用于频率偏移的电力系统相量计算方法 A phasor calculation method applicable to the frequency offset of the power system |
06/25/2014 | CN102735937B 信号相位差测量的方法 The method of measuring the phase difference signal |
06/24/2014 | US8762084 Multiple excitation capacitance polling for enhanced electronic capacitance tomography |
06/24/2014 | US8762083 Intelligent fuse holder and circuit protection methods |
06/21/2014 | CA2834544A1 Portable self powered line mounted device and method for measuring the voltage of electric power line conductors |
06/19/2014 | US20140172338 Nonlinear system identification for optimization of wireless power transfer |
06/19/2014 | US20140167735 Identifying phase connections in an electric distribution system |
06/18/2014 | CN203658475U 一种具有验电功能的核相装置 An electrical inspection device having a nuclear phase function |
06/18/2014 | CN203658464U 一种核相测试杆 , A nuclear phase test rod |
06/18/2014 | CN103869162A Dynamic signal phasor measurement method based on time domain quasi-synchronization |
06/18/2014 | CN103869161A Power line phase detection device and method |
06/18/2014 | CN103869160A Phase detection circuit suitable for single-phase flyback front and back phase cutting dimming power supply |
06/11/2014 | CN103852641A Novel anti-interference electric transmission line phasing tester |
06/11/2014 | CN103852640A Network voltage phase computing method and device and one-phase pulse width modulation rectifier |
06/11/2014 | CN103852639A Simple device for detecting orthogonal signals |
06/11/2014 | CN102095932B Detection method of voltage phase at access point of photovoltaic inverter |
06/10/2014 | US8749271 Methods for synchronizing high-speed signals in a digital phase detector |
06/05/2014 | DE102012111732A1 Antennenvorrichtung zur Übertragung von Daten eines Füllstandsmessgeräts An antenna apparatus for transmitting data of a fill level meter |
06/04/2014 | CN103840451A Distributed power supply island detection method based on distribution transformation high-voltage side signal correction |
06/04/2014 | CN102426294B Clock phase difference measurement method and device |
06/03/2014 | US8744791 Automatic generation and analysis of solar cell IV curves |
05/28/2014 | CN103823126A 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 |
05/28/2014 | CN103823111A 一种远程网络统一相色标识系统 A long-range network unified identification system with color |
05/27/2014 | US8738195 Inferencing energy usage from voltage droop |
05/27/2014 | US8736251 Digital sensing apparatus and digital readout module thereof |
05/22/2014 | US20140139266 Method of static phase offset correction for a linear phase detector |
05/22/2014 | DE102012215166B4 Schaltgerät für einen Einphasenmotor und einen Drehstrommotor Switching device for a single-phase motor and a three-phase motor |
05/21/2014 | CN103809025A 船舶发电机组并网相位差检测方法 Ship generators and net phase difference detection method |
05/21/2014 | CN103809009A 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 |
05/20/2014 | US8731846 Measuring arrangement for registering chemical and/or physical, measured variables, as well as measuring device therefor |
05/15/2014 | US20140132246 Circuit and method for detecting zero-crossings and brownout conditions on a single-phase or multi-phase system |
05/15/2014 | US20140132245 High-resolution phase detector |
05/14/2014 | CN203595756U 简易插座相序检测器 Simple socket phase sequence detector |
05/14/2014 | CN103792428A 一种三相电缆相位测定装置及其使用方法 Apparatus and methods of using a three-phase cable phase measurement |
05/13/2014 | US8725443 Latency measurement |
05/13/2014 | US8725440 Method and apparatus for processing a motor signal, having current ripple, of a DC motor |
05/13/2014 | US8725424 Seafood physical characteristic estimation system and method |
05/13/2014 | CA2700973C Systems and methods for power swing and out-of-step detection using time stamped data |
05/07/2014 | CN103779834A 一种应用于分布式发电并网接入防逆流智能检测方法 Applied to distributed generation and network access backflow prevention intelligent detection method |
05/07/2014 | CN103777077A 无线钳形相位检测装置 Wireless pincers phase detection device |
05/07/2014 | CN102033177B 一种配电网电力线路功率角测量方法及测量系统 Distribution networks and power lines power angle measuring method and system |
04/30/2014 | CN103760419A Phase angle measuring method of voltage and current of electric transmission line |
04/30/2014 | CN103760418A Method for mutual correlation phase difference measurement based on Hilbert transform |
04/30/2014 | CN103760417A Simple AC signal phase acquisition circuit with frequency measurement function |
04/30/2014 | CN103760416A Error analysis method for measuring high-power microwave phase position through directional coupler |
04/30/2014 | CN103760415A Strong-flow compact type circular accelerator tuning loop phase detection method |
04/30/2014 | CN103760407A Voltage amplitude and phase angle measuring method for double-circuit line non-same-name-phase overline grounded fault point |
04/29/2014 | US8712711 Identification of electrical grid phase information for end-points in a grid network |
04/24/2014 | US20140111185 Apparatus and method for detecting a phase sequence in a vehicle |
04/23/2014 | CN103743950A Test system of antenna phase |
04/23/2014 | CN102460980B Transmitter phase shift determination and compensation |
04/23/2014 | CN102377385B Bypass variable-frequency controller with phase detection |
04/22/2014 | US8706432 Resistor matrix offset compensation |
04/16/2014 | CN203551661U Universal phase discriminator |
04/16/2014 | CN102608483B Direction diagnosing system of grounded fault of small current grounded distribution system |
04/16/2014 | CN102419397B Phase difference measuring method |
04/16/2014 | CN101615994B Phase detecting module and detecting method thereof |
04/15/2014 | US8700348 Contact-type object water content sensing device and method and computer program product |
04/09/2014 | CN203535127U Zinc oxide lightning arrester on-line monitor |
04/09/2014 | CN203535116U Universal phase recognizer |
04/09/2014 | CN103713194A Phase detection method for clock recovery and apparatuses |
04/09/2014 | CN103713193A Application meted for determining voltage phase and checking phase by using cosine law |
04/08/2014 | US8691454 Variable fuel cell power system for generating electrical power |
03/26/2014 | CN203502495U Novel arrester live-line tester |
03/26/2014 | CN203502492U Frequency measuring device for water turbine generator set |
03/26/2014 | CN103675449A Method for generating wiring phasor diagram by using inner data of intelligent ammeter |
03/26/2014 | CN103675438A Parallel meter-reading method between concentrator and electricity meters |
03/20/2014 | US20140077849 Phase-locked loop with loop gain calibration, gain measurement method, gain calibration method and jitter measurement method for phase-locked loop |
03/20/2014 | DE102008018388B4 Verfahren zur automatischen Erkennung einer Last und zur automatischen Zuordnung eines Ansteuerverfahrens durch einen Dimmer sowie Dimmer A method for automatic detection of a load and a driving method for automatic assignment by a dimmer and dimmer |
03/19/2014 | CN203490280U Electric signal measuring circuit |
03/19/2014 | CN103645380A Design method of waveguide-type phase standard selector used for millimeter waves |
03/19/2014 | CN102508029B Phase angle tracking method for power grid |
03/12/2014 | CN103630769A Online zinc oxide arrester monitoring instrument |