Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411) |
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02/02/2005 | CN1573287A Signal processor for use in electronic compass |
02/02/2005 | CN1187622C Optic measuring method and device using optic wave front polarized rotation of rare earth iron garnet |
02/01/2005 | US6850399 Gas insulated device and failure rating method |
02/01/2005 | US6850034 Circuit arrangement for monitoring the state of charge of an accummulator |
01/27/2005 | WO2004099798A3 Fiberoptic faraday effect sensor |
01/27/2005 | US20050017751 Body capacitance electric field powered device for high voltage lines |
01/27/2005 | US20050017726 Handheld tester for starting/charging systems |
01/26/2005 | EP0990184B1 Integrated optical waveguide system |
01/26/2005 | CN1570654A Magnetic core sheath free coil magnetic core pack for current sensor |
01/26/2005 | CN1186783C Dry type high-voltage capacitor core and making method thereof |
01/20/2005 | WO2005005998A1 Measuring method and measuring arrangement for measuring currents with a large dynamic range |
01/20/2005 | WO2005005995A2 System and method for acquiring voltages and measuring voltage into an electrical service using a non-active current transformer |
01/20/2005 | WO2004042070A9 Electrical detection of dna hybridization and specific binding events |
01/20/2005 | US20050012496 Electric current detection apparatus |
01/20/2005 | DE10329223A1 Cable short circuit current sensor for building supply protection, has magnetic field operated reed contact rotated to set threshold current |
01/20/2005 | DE10328870A1 Widerstandsanordnung, Herstellungsverfahren und Messschaltung Resistor assembly, manufacturing processes and measuring circuit |
01/20/2005 | CA2522373A1 System and method for acquiring voltages and measuring voltage into an electrical service using a non-active current transformer |
01/19/2005 | EP1498916A1 Integrated circuit provided for a watthour meter |
01/19/2005 | EP1498739A1 Current sensor having a magnetic core with airgap and power supply circuit provided with such sensors |
01/19/2005 | EP1421393B1 Optical current sensors |
01/19/2005 | EP1084420A4 Arc detection sensor utilizing discrete inductors |
01/19/2005 | CN1185495C Voltage and current combined sensor |
01/18/2005 | US6844799 Compact low cost current sensor and current transformer core having improved dynamic range |
01/13/2005 | US20050007095 Open-loop electric current sensor and a power supply circuit provided with such sensors |
01/13/2005 | US20050007093 Current measurement technique and current measurement apparatus |
01/13/2005 | US20050007092 Compensation of simple fibre optic Faraday effect sensors |
01/13/2005 | DE10328207A1 Stromsensor für ein Steuergerät Current sensor for a control unit |
01/12/2005 | EP1496369A1 Optical method and apparatus for monitoring an electric conductor |
01/12/2005 | EP1203202A4 Enhancing voltmeter functionality |
01/12/2005 | EP1040361A4 Methods and apparatus for optically measuring polarization rotation of optical wave fronts using rare earth iron garnets |
01/12/2005 | CN2670951Y Current sensor |
01/12/2005 | CN2670949Y Electricity meter with hidden probe container |
01/11/2005 | US6841989 Hall-effect current detector |
01/11/2005 | US6841987 High speed measurement system which selects optimal measurement range on a sample by sample basis |
01/06/2005 | US20050001706 Low power cosuming current measurements for high currents |
01/05/2005 | EP1494033A1 Low power consuming current measurements for high currents |
01/05/2005 | EP1368667B1 Method and device for current measurement by means of fibre-optic in-line sagnac interferometer and phase modulator suitable for the above |
01/05/2005 | CN2669200Y Universal meter capable of identifying live wire |
12/30/2004 | US20040267505 Signal processor for use in electronic compass |
12/30/2004 | US20040263151 Current sensor with a control device |
12/30/2004 | US20040263150 Resistor arrangement, manufacturing method, and measurement circuit |
12/30/2004 | US20040263149 Apparatus and method for monitoring power and current flow |
12/30/2004 | US20040263148 Current sensor |
12/30/2004 | DE10326594A1 Car quiet current test procedure measures magnetic field using measurement unit powered from car battery with wireless link to test system. |
12/30/2004 | CA2820518A1 Self powered serial-to-serial or usb-to-serial cable with loopback and isolation |
12/29/2004 | EP1492130A2 Resistor arrangement, process for production and measuring circuit |
12/29/2004 | EP1491903A1 Fiberoptic Faraday effect sensor |
12/29/2004 | EP1491902A1 Current sensor for a control apparatus |
12/29/2004 | CN1182639C Voltage converter for circuit breaker at high or mediate voltages |
12/29/2004 | CN1182401C Sagnac interferometer type current sensor |
12/28/2004 | US6836137 Configuration for testing semiconductor devices |
12/28/2004 | US6836107 Constant input impedance AC coupling circuit for a current probe system |
12/23/2004 | US20040260489 Energy management system in a power and distribution system |
12/23/2004 | US20040257734 Overload current protection apparatus |
12/23/2004 | US20040257061 Coreless current sensor |
12/23/2004 | DE19802191B4 Optischer Stromwandler mit einer Lichtwellenleiterwicklung und Verfahren zu seiner Herstellung Optical current transformer with a fiber optic coil and methods for its preparation |
12/23/2004 | DE10322262A1 Measurement signal feed isolator for chemical process plant as transformer isolated measurement circuit and auxiliary power supply with PWM regulator matched power demand |
12/22/2004 | EP1430313B1 Measuring transformer |
12/22/2004 | CN1181350C Current detecting device |
12/21/2004 | US6833694 Current measurement technique and current measurement apparatus |
12/16/2004 | US20040253921 Transducer package for process control |
12/15/2004 | CN2664136Y Polyphase photo-electric current transformer |
12/15/2004 | CN2663991Y A current sensor |
12/15/2004 | CN1555599A Overload current protection apparatus |
12/15/2004 | CN1554952A Hollow coil and its preparing method |
12/15/2004 | CN1554951A Computer-aided housheold electric appliance auxiliary detector and its detecting method |
12/15/2004 | CN1180268C Electrical quantity sensor |
12/15/2004 | CN1180266C Current metering sensor |
12/14/2004 | US6831749 Sagnac interferometer current sensor |
12/14/2004 | US6831588 Range recognizer employing a single range internally partitioned by monotonically increasing boundary values |
12/09/2004 | US20040246467 Production method for a sensor head for optical current sensors |
12/09/2004 | US20040244390 System and method for remote appliance monitoring |
12/08/2004 | CN2662257Y A novel circuit current detecting device |
12/08/2004 | CN2662255Y Radio telemetering water meter |
12/08/2004 | CN1554027A Measuring transformer |
12/08/2004 | CN1553198A Cable core current detector |
12/07/2004 | US6828770 Apparatus and method for electrical measurements on conductors |
12/02/2004 | US20040243325 Method and arrangement for securing sensors in an electricity meter |
12/02/2004 | US20040239335 Current measurement in electrical machines |
12/02/2004 | US20040239322 Circuit configuration for a gradiometric current sensor and a sensor chip equipped with this circuit configuration |
12/02/2004 | US20040239308 Multimeter having off-device display device and selection device |
12/02/2004 | US20040239307 Temperature-compensated electro-optical voltage sensor |
12/02/2004 | US20040239306 Voltage presence indication device and electrical apparatus comprising such an indicator |
12/02/2004 | DE10320293A1 Rogowski coil electric current measurement circuit has high pass filters to eliminate offset voltage and quiescent current errors |
12/01/2004 | EP1482316A2 Current measurement in electrical machines |
12/01/2004 | EP1482315A1 Current measuring device |
12/01/2004 | EP1481256A2 Magnetic field sensor |
12/01/2004 | EP1119748A4 Interferometer coupler using multiple input ports for improved stabiblity |
11/30/2004 | US6825651 Test method for characterizing currents associated with powered components in an electronic system |
11/30/2004 | US6825649 Non-contact voltage measurement method and device, and detection probe |
11/24/2004 | EP1478937A1 Measuring current through an electrical conductor |
11/24/2004 | CN1549991A Power management method and system |
11/24/2004 | CN1549928A Production method for a sensor head of optical current sensors |
11/24/2004 | CN1177332C Antijamming signal transferring cable and high-speed high-amplitude pulse current sensor |
11/23/2004 | US6822547 Current transformer |
11/18/2004 | WO2004099798A2 Fiberoptic faraday effect sensor |
11/18/2004 | US20040230384 Electric fuel pump condition monitor system using electrical signature analysis |
11/18/2004 | US20040227522 Power-line, differential, isolation loss detector |
11/18/2004 | US20040227503 Power monitoring system |
11/18/2004 | US20040227501 Measuring transformer |