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