Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411) |
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05/20/2009 | DE102007054395A1 Anordnung zur Messung eines elektrischen Stromes Arrangement for measuring an electric current |
05/20/2009 | DE102007051579A1 Current transformer for measurement and protection in high or medium voltage networks, has bus bar which runs into upper area through opening channel with play |
05/20/2009 | CN201242563Y Thunderbolt transient impact current sensor |
05/20/2009 | CN201242562Y Circuit for transferring same current into voltage of linear space and logarithm space |
05/20/2009 | CN201242561Y Apparatus for detecting power supply current |
05/20/2009 | CN101438174A Input by-pass circuit for a current probe |
05/20/2009 | CN101438173A Current sensing circuit for use in a current measurement probe |
05/20/2009 | CN101436463A Detachable high precision feeble current sensor |
05/20/2009 | CN101435833A Single-phase multiple-parameter electric power instrument |
05/14/2009 | WO2008115734A3 A clamping apparatus and a system and method for detecting defects in electrical wiring |
05/14/2009 | US20090125259 Apparatus and methods of defining spectral regions of interest for signal analysis |
05/14/2009 | US20090125253 Passive intermodulation test apparatus |
05/14/2009 | US20090121704 Current Measuring Apparatus |
05/13/2009 | EP2057658A1 Terminal unit of a bus system |
05/13/2009 | CN201238192Y Intelligent isolation type safety grid |
05/13/2009 | CN201237617Y Standard current mutual inductor integration apparatus for field detection |
05/13/2009 | CN201237616Y Electronic voltage transducer |
05/13/2009 | CN201237615Y Sensor for high-voltage live display device |
05/13/2009 | CN201237612Y High-tension electric energy metering device based on optoelectronic mutual inductor and Web issuance |
05/13/2009 | CN101430347A Magnetic collection feedback type optical fiber current sensor |
05/07/2009 | WO2009027373A3 Measuring and/or switching device |
05/07/2009 | WO2009008757A3 Magneto-optical head with adjustable analyzer for current measurements at medium and high voltage |
05/07/2009 | US20090115403 Split core status indicator |
05/07/2009 | US20090115400 Status indicator |
05/07/2009 | US20090115399 Shielded Current Sensor |
05/07/2009 | US20090115398 Device And Method For Measuring A First Voltage And A Second Voltage By Means Of A Differential Voltmeter |
05/07/2009 | DE19954182B4 Elektronischer Multimeter Electronic Multimeter |
05/07/2009 | DE102007052408A1 Magnetic field sensor i.e. giant magnetic resistance sensor, operating method for measuring e.g. current, involves using front reversal point on characteristics curve as new starting point for forming changeable hysteresis loop |
05/07/2009 | DE102007046347B3 Gerät zum Erfassen eines Fehlerstroms An apparatus for detecting a fault current, |
05/07/2009 | DE102006032763B4 Vorrichtung und Verfahren zur Messung eines in einem elektrischen Leiter fließenden Stromes Apparatus and method for measuring a current flowing in an electric conductor current |
05/07/2009 | DE102006032762B4 Verfahren zur Messung eines in einem elektrischen Leiter fließenden Stromes und Verwendung des Verfahrens sowie einer Vorrichtung zur Überwachung von Strömen im Bordnetz eines Kraftfahrzeugs A method of measuring a current flowing in an electric conductor current, and use of the method and an apparatus for monitoring currents in the electrical system of a motor vehicle |
05/06/2009 | EP2056115A1 Autoranging Power Measurements for Smart Metering in Households, Small Business and Appliances |
05/06/2009 | EP1419395B1 Magnetic field sensor using microelectromechanical system |
05/06/2009 | CN201233808Y Current mutual inductor having shunting resistor |
05/06/2009 | CN201233423Y Electric network voltage detection device |
05/06/2009 | CN201233421Y Adjustable current sensor |
05/06/2009 | CN201233419Y Mobile terminal and multimeter |
05/06/2009 | CN201233418Y Intelligent distributing transformer monitoring and metering terminal |
05/06/2009 | CN101427142A Fiber-optic current sensor with polarimetric detection scheme |
05/06/2009 | CN101424708A Optical voltage transformer |
05/06/2009 | CN101424707A Coaxial structure capacitive divider for measuring ns high voltage pulse |
05/06/2009 | CN101424701A Computation method for making AC load |
05/06/2009 | CN100485737C Mutual inductor |
05/06/2009 | CN100485407C Magnetic field sensor and electrical current sensor thereof |
05/06/2009 | CN100485396C Method for measuring high voltage by current method and its device |
05/05/2009 | US7528594 Device for the reading of direct and/or alternating currents |
05/05/2009 | US7528593 Current measuring device |
05/05/2009 | US7528592 Magnetoresistive sensor for current sensing |
04/30/2009 | WO2009054157A1 Optical fiber current sensor and current measuring method |
04/30/2009 | WO2009000236A3 High-dynamic ammeter with small time constant |
04/30/2009 | US20090112500 Memory-Based High-Speed Interferometer |
04/30/2009 | US20090108833 Isolated current to voltage, voltage to voltage converter |
04/30/2009 | DE102008034538A1 Digitales Multimeter mit scharnierbefestigter Abdeckanordnung Digital Multimeter with hinged cover assembly mounted |
04/30/2009 | DE102006028520B4 Stromsensor mit einem Hall-Element Current sensor with a Hall element |
04/30/2009 | CA2703344A1 Optical fiber electric current sensor and electric current measurment method |
04/29/2009 | CN201229847Y Weak output capacitor type voltage mutual inductor |
04/29/2009 | CN201229376Y 电缆插件式电压传感器 Cable plug-in voltage sensor |
04/29/2009 | CN201229372Y Three-phase optical fiber electronic mutual-inductor |
04/29/2009 | CN201229371Y Optical fiber electronic mutual-inductor |
04/29/2009 | CN201229370Y Device capable of implementing safety thermal plug of secondary current loop of electrical measuring instrument of transforming plant |
04/29/2009 | CN201229369Y AC electrical artificer meter |
04/29/2009 | CN201229368Y Multipath fast switching circuit for testing Crystal Oscillator by network analyser |
04/29/2009 | CN201229367Y Low noise deviation frequency generator |
04/29/2009 | CN101419246A Digital multimeter having hinged shield arrangement |
04/28/2009 | US7526391 Method and apparatus to evaluate transient characteristics in an electrical power system |
04/28/2009 | US7526388 Method of selecting and analyzing scrap silicon |
04/23/2009 | US20090102454 Accuracy enhancing mechanism and method for current measuring apparatus |
04/23/2009 | DE112007001310T5 Elektrisches System Electrical System |
04/22/2009 | EP2051084A1 Electrical quantity measuring device for energy transport lines |
04/22/2009 | EP1348133B1 Electrical quantity sensor |
04/22/2009 | CN201226292Y Electron type current transformer for ultrahigh voltage transmission line and apparatus for measuring corona loss thereof |
04/22/2009 | CN201226012Y Ultracrystalline high voltage electric power batch meter |
04/22/2009 | CN201226009Y Sensing head of optical fiber optical grating Fabry-Perot current sensor |
04/22/2009 | CN201224662Y Non-load sensing type elevating capacity stopper |
04/22/2009 | CN100481277C Diffluence resistor and making method thereof |
04/22/2009 | CN100480705C Current sensor with reduced sensitivity to stray magnetic fields |
04/16/2009 | US20090099797 Method to produce an optical module for analog data transmission |
04/16/2009 | DE102007046483A1 Schaltungsanordnung zur Überwachung einer elektrischen Isolation Circuit arrangement for monitoring an electrical insulation |
04/15/2009 | CN101408560A Double-magnetic loop direct current detector |
04/15/2009 | CN101408559A Method for preparing sensitive coil of reflection type optical fiber current sensor |
04/15/2009 | CN101408558A Minitype optical DC/AC electric field sensor |
04/14/2009 | US7518529 Monitoring device for a medium voltage overhead line |
04/14/2009 | US7518354 Multi-substrate integrated sensor |
04/09/2009 | WO2009045967A1 Synchronized phasor processor for a power system |
04/09/2009 | WO2005031299A3 Sensor platform using a non-horizontally oriented nanotube element |
04/09/2009 | CA2701220A1 Synchronized phasor processor for a power system |
04/08/2009 | EP2044446A2 Current-sensing apparatus and method for current sensing |
04/08/2009 | CN201219065Y High potential side energy supplying device of active electronic photoelectric current mutual inductor |
04/08/2009 | CN201218820Y High tension equip isolation power supply based on electro-optical transformation |
04/08/2009 | CN101403769A Multi-meter with trend capturing function |
04/07/2009 | US7516248 Obtaining extended queue measurement data for a range of logical control unit queues |
04/02/2009 | WO2006081016A3 Method and system of obtaining data from field devices |
04/02/2009 | US20090085573 Differential-mode-current-sensing method and apparatus |
04/02/2009 | DE202009000098U1 Strommessanordnung Current-measuring device |
04/02/2009 | DE202009000097U1 Strommessanordnung Current-measuring device |
04/01/2009 | CN201215768Y Integrated current mutual inductor with large climbing distance |
04/01/2009 | CN201215767Y Current mutual inductor having support integrated with the inductor |
04/01/2009 | CN201215766Y Current mutual inductor having ring shaped metal sleeve |
04/01/2009 | CN201215765Y Novel current mutual inductor |
04/01/2009 | CN201215568Y Screwdriver shaped multimeter |