| Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411) |
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| 02/04/2009 | CN201191563Y Straight-through current transformer suitable for high-voltage solid soft starting cabinet |
| 02/04/2009 | CN201191562Y Multifunction current mutual inductor |
| 02/04/2009 | CN201191561Y High-stable voltage mutual inductor |
| 02/04/2009 | CN201191303Y DC side high-voltage detection circuit apparatus for permanent magnetic synchronous compressor driver |
| 02/04/2009 | CN201191302Y Integrated electric power measurement and control instrument |
| 02/04/2009 | CN101361002A Device and method for converting digital signal with high-voltage swinging to digital signal with low-voltage swinging |
| 02/04/2009 | CN101359005A Power supply system power supply method for on-line detecting resistance current of lightning arrester |
| 02/04/2009 | CN101359004A Current sensor for measuring inhomogeneity of electric potential distribution of lightning arrester |
| 02/04/2009 | CN101359001A Method and apparatus for amplifying signal and testing device using the same |
| 02/03/2009 | US7486068 Rotating head for nondestructive tests |
| 02/03/2009 | CA2320342C Method for preparing an emulsified fuel and implementing device |
| 02/03/2009 | CA2236823C Concatenated magneto-optic field sensors |
| 01/29/2009 | WO2008031029A3 Sensor, method and system of monitoring transmission lines |
| 01/29/2009 | WO2008022232A3 Clamp diode reset in a power converter and power outage detection in a switched mode power supply |
| 01/29/2009 | DE102007035093A1 Electrical potential measuring element for high voltage applications, has control layer with input to apply potential to be measured, where applied potential is variable by electrical influence of resistance value of resistor element |
| 01/29/2009 | DE102007034558A1 Mobiles Hochspannungsprüfgerät mit Gehäuse Portable High Voltage Test Set with Case |
| 01/28/2009 | EP2019323A2 Device and method for indicating and signalling changes in a three-phase voltage system of power line, with the purpose to detect interrupted conductions |
| 01/28/2009 | CN201188118Y Whole electronic type intelligent electric meter |
| 01/28/2009 | CN201188116Y Coating type compact sensing head for magnetofluid optical current sensor |
| 01/28/2009 | CN101355252A Method for compensating error of parallel type mixed active electric power filter |
| 01/28/2009 | CN101354409A Optical current sensor |
| 01/27/2009 | US7483248 Method and apparatus for detecting current changes in integrated circuits |
| 01/22/2009 | WO2009010154A2 Circuit breaker comprising a magnetic field-sensitive sensor |
| 01/22/2009 | WO2009009878A1 Transformer meter and system for using same |
| 01/22/2009 | DE102007032300A1 Current sensor for direct current or alternating current measurements, comprises two flux gate sensors, where every flux gate sensor has magnetic core, and current carrying conductor is assigned two conductive sections |
| 01/22/2009 | CA2692864A1 Transformer meter and system for using same |
| 01/21/2009 | EP2016431A2 Input by-pass circuit for a current probe |
| 01/21/2009 | EP2016430A2 Current sensing circuit for use in a current measurement probe |
| 01/21/2009 | EP2016429A2 Electrical measuring instrument having detachable current clamp |
| 01/21/2009 | CN201184892Y Composite transformation ratio automatic transition electric force measuring box/cabinet |
| 01/21/2009 | CN201184888Y Electric meter with stick-measuring fixed structure |
| 01/21/2009 | CN101351714A Fiber optic current sensor |
| 01/21/2009 | CN101350247A Outdoor dry-type voltage transformer for electric locomotive |
| 01/21/2009 | CN100454453C Low-power electronic current mutual inductor |
| 01/21/2009 | CN100454024C Magnetic bridge type current sensor, magnetic bridge type current detecting method, and magnetic bridge for use in that sensor and detecting method |
| 01/20/2009 | US7479778 Adaptive slope compensation for switching regulators |
| 01/20/2009 | US7479029 Modular watthour meter socket and test switch |
| 01/15/2009 | DE102007032627A1 Testvorrichtung Test device |
| 01/15/2009 | DE102007030172A1 Strommessgerät mit hoher Dynamik und kleiner Zeitkonstante Flow meter with high dynamics and small time constant |
| 01/14/2009 | CN201181308Y Sensing head of optical fiber current sensor |
| 01/14/2009 | CN201181307Y Ammeter with detachable measuring stick |
| 01/14/2009 | CN201181306Y Digital multimeter with satellite signal receiving and positioning instrument |
| 01/14/2009 | CN101345499A Photoelectric converter used for energy supply of current mutual inductor |
| 01/14/2009 | CN101345128A High potential side energy supplying device of active electronic type photoelectric current mutual inductor |
| 01/14/2009 | CN101344540A Sensing head of optical fiber optical grating Fabry-Perot current sensor and preparation thereof |
| 01/14/2009 | CN101344539A 1000kV electromagnetic accurate voltage mutual inductor for magnitude tracing |
| 01/08/2009 | WO2009003395A1 A wide range and high accuracy on-line current and temperature measuring device and method |
| 01/08/2009 | US20090009280 Magnetic core for current sensor having high magnetic saturation |
| 01/08/2009 | US20090009175 Current-measuring clamp on sensor in electromechanical relays |
| 01/08/2009 | DE102008023858A1 Magnetkern für einen Stromsensor mit hoher magnetischer Sättigung Magnetic core for a current sensor with high magnetic saturation |
| 01/07/2009 | EP2010925A1 Fiber-optic current sensor with polarimetric detection scheme |
| 01/07/2009 | EP1906190B1 Control/protection device for electrical distribution networks |
| 01/07/2009 | CN201177648Y Motor rotation-blocking detection circuit for electrical appliance |
| 01/07/2009 | CN101339207A Method for enhancing optical electric current sensor stability |
| 01/07/2009 | CN101339206A Magnetic core for current sensor having high magnetic saturation |
| 01/02/2009 | DE102008030411A1 Integrierter Hybrid-Stromsensor Built-in Hybrid Current Sensor |
| 01/01/2009 | US20090001962 Current sensor with reset circuit |
| 12/31/2008 | WO2009001185A1 Rogowski current sensor |
| 12/31/2008 | WO2009001160A1 Method for low frequency noise cancellation in magneto-resistive mixed sensors |
| 12/31/2008 | WO2009000236A2 High-dynamic ammeter with small time constant |
| 12/31/2008 | WO2009000159A1 Low energy-consuming series current transformer for 1-1000 kv transformer detect |
| 12/31/2008 | WO2008137651A3 Adaptive filters for fiber optic sensors |
| 12/31/2008 | WO2008120118A3 Magneto-resistive sensor |
| 12/31/2008 | EP2009453A1 Rogowski current sensor |
| 12/31/2008 | CN201174317Y Energy saving current mutual inductor |
| 12/31/2008 | CN201173945Y Current sensor |
| 12/31/2008 | CN201173944Y Optical coupling isolation control interface circuit structure |
| 12/31/2008 | CN201173943Y Capacity type high pressure sensor |
| 12/31/2008 | CN201173942Y Digital multi-purpose meter electric current plug jack automatic recognition device |
| 12/31/2008 | CN101336378A Current sensor |
| 12/31/2008 | CN101334427A Reflecting type full-optical fiber current sensor |
| 12/25/2008 | US20080315864 Out-Of-Line Measurement of a Current Flowing Through a Load |
| 12/24/2008 | DE102008028384A1 Verbinder für ein 4-Draht-Widerstandsmessgerät sowie diesen verwendendes Widerstandsmessgerät A connector for a 4-wire resistance measurement device, and this resistance meter-use |
| 12/24/2008 | DE102007029037A1 Training suitcase for electro technology and electronics, has housing in which base plate is arranged and multiple sockets are inserted into base plate |
| 12/24/2008 | DE102007028965A1 Verfahren zur Überprüfung des Stromflusses durch Einzeldrähte eines Litzendrahtes sowie Vorrichtung zur Durchführung des Verfahrens Method for checking the current flow through the individual wires of a braided wire, and device for carrying out the method |
| 12/24/2008 | CN101329371A System and method for compensating equivalent circuit of multilevel measuring tool |
| 12/24/2008 | CN101329370A Electrical quantity measuring device for electric cable |
| 12/24/2008 | CN101329369A Method and structure for connecting albatra metal current divider and signal line |
| 12/23/2008 | US7469078 System for remote measurements |
| 12/23/2008 | US7468602 Digital multi-meter |
| 12/18/2008 | US20080313006 Systems, methods, and devices for managing emergency power supply systems |
| 12/18/2008 | DE202008012593U1 Strommessvorrichtung A current measuring device |
| 12/17/2008 | EP2002267A1 Fiber-optic current sensor with sum detection |
| 12/17/2008 | CN201167025Y Electronic voltage transformer base on partial pressure resistance |
| 12/17/2008 | CN201166687Y Harmonic meter |
| 12/17/2008 | CN201166685Y Wide band high voltage intelligent resistance voltage division type voltage sensor |
| 12/17/2008 | CN201166683Y Electro-magnetism type photoelectric current mutual-inductor for high-voltage capacitor |
| 12/17/2008 | CN201166682Y Test circuit special for multimeter adaptive voltage cascade low-resistance |
| 12/17/2008 | CN201166681Y Electrical measuring instrument |
| 12/17/2008 | CN100443914C Magnetic sensing device, method of forming the same, magnetic sensor, and ammeter |
| 12/17/2008 | CN100443903C Open-loop electric current sensor and a power supply circuit provided with such sensors |
| 12/16/2008 | US7466121 MEMS based current sensor using magnetic-to-mechanical conversion and reference components |
| 12/16/2008 | US7466118 Compensation of simple fibre optic Faraday effect sensors |
| 12/16/2008 | CA2347749C Fiber optic current sensor |
| 12/11/2008 | WO2008148727A1 Voltage measurements of electrically conducting elements in systems for controlling electrical processes |
| 12/11/2008 | WO2008113142A3 Real-time monitoring system for capacitance graded bushings |
| 12/11/2008 | WO2008065196A3 Faraday effect current sensor |
| 12/11/2008 | US20080303512 Isolating Transformer |
| 12/11/2008 | US20080303511 Precision flexible current sensor |
| 12/10/2008 | CN201163573Y Openable current mutual inductor |