| Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411) |
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| 09/09/2009 | CN201307136Y Sensing head fixing device of optical fiber voltage sensor |
| 09/09/2009 | CN201307135Y A transformer isolated transformation signal collector |
| 09/09/2009 | CN101529259A Sensor, method and system of monitoring transmission lines |
| 09/09/2009 | CN101526568A Grounding test apparatus of reversely connected flow ratio device high voltage bridge based on cable insulation technique |
| 09/09/2009 | CN101526560A Electronic measuring method based on electromagnetic induction principle and measuring multimeter |
| 09/09/2009 | CN100539430C Signal processor for use in electronic compass |
| 09/03/2009 | WO2008155065A3 Device for the operation of electronic circuits on a high-voltage potential |
| 09/03/2009 | US20090222224 Multi-circuit direct current monitor with Modbus serial output |
| 09/03/2009 | US20090219009 Current Measurement Device |
| 09/02/2009 | EP2095136A1 Optical high voltage sensor |
| 09/02/2009 | EP2095135A1 Optical voltage sensor |
| 09/02/2009 | EP1205015B1 Cvt transient filter |
| 09/02/2009 | CN101521104A Full optical fiber current transformer adopting double closed loop control |
| 09/02/2009 | CN101520472A Battery jar voltage insulation test circuit based on linear optical coupler |
| 09/02/2009 | CN101520471A Novel DC pulsed attenuator |
| 09/02/2009 | CN100535669C Extra-high voltage reference capacitor |
| 09/01/2009 | US7583075 Subtractive current measuring method |
| 09/01/2009 | US7583072 Current sensor for measuring current flowing through bus bar |
| 08/27/2009 | WO2009103126A1 Sensing coil and sensing unit for sagnac optical fibre current sensor |
| 08/27/2009 | CA2715656A1 Sensing coil and sensing unit for sagnac optical fibre current sensor |
| 08/26/2009 | EP2093777A1 A bushing for a main high voltage conductor |
| 08/26/2009 | EP2092352A1 Rogowski sensor and method for measuring a current |
| 08/26/2009 | EP2092351A2 Arrangement and method for determining load currents in a vehicle |
| 08/26/2009 | CN201298449Y Capacitance type potential transformer |
| 08/26/2009 | CN201298448Y 一种分体式电压互感器 A separate-type voltage transformer |
| 08/26/2009 | CN201298447Y Novel sulfur hexafluoride gas insulation electronic mutual inductor |
| 08/26/2009 | CN201298052Y 电流传感器 Current Sensors |
| 08/26/2009 | CN201298051Y Radiator-type power attenuator |
| 08/26/2009 | CN101515519A Encapsulated pole unit conductor assembly for an encapsulated pole unit and medium voltage circuit interrupter including the same |
| 08/26/2009 | CN101514999A Electric power measurement multifunctional instrument system and method for measurement |
| 08/26/2009 | CN100533155C Three-range potential difference meter |
| 08/25/2009 | US7579825 Device and method for measuring a current flowing in an electrical conductor |
| 08/25/2009 | US7579824 High-precision Rogowski current transformer |
| 08/20/2009 | US20090210176 Methods to select golden devices for device model extractions |
| 08/20/2009 | US20090210169 Hand-held systems and methods for detection of contaminants in a liquid |
| 08/20/2009 | DE102008009888A1 Switching arrangement for bi-directional measurement of unipolar currents, has transformer with primary winding and secondary winding, where active switch and diode are provided for passing measuring current with direction |
| 08/20/2009 | DE102007006219B4 Stromsensoranordnung Flow sensor assembly |
| 08/19/2009 | EP2089724A2 Electrical energy meter comprising at least one inductive type electricity measuring sensor, and associated sensor |
| 08/19/2009 | EP1938113B1 A sampling module and a method of sampling one or more analogue characteristics of a power transmission system |
| 08/19/2009 | CN201294154Y High-precise zero-sequence current transformer |
| 08/19/2009 | CN101512349A Sensor module, system, and method for sensors in proximity to circuit breakers |
| 08/19/2009 | CN100530461C Plug-in unit assembly comprising instrument transformers |
| 08/19/2009 | CN100529767C Three-range potentiometer adopting transposition branch |
| 08/18/2009 | US7577859 System and method of controlling power consumption in an electronic system by applying a uniquely determined minimum operating voltage to an integrated circuit rather than a predetermined nominal voltage selected for a family of integrated circuits |
| 08/18/2009 | US7576546 Electric potential measuring device and image forming apparatus |
| 08/18/2009 | US7576544 Electric quantity indicator for an electromotive vehicle |
| 08/12/2009 | EP1611445B1 An apparatus for measuring an a.c. current in a cable |
| 08/12/2009 | CN101504428A Electronic measurement method and multifunctional electronic measuring instrument |
| 08/12/2009 | CN100526888C Differential current measuring apparatus, tripping device and switchgear |
| 08/06/2009 | WO2009097400A1 System and method for home energy monitor and control |
| 08/06/2009 | DE102008006223A1 Voltage detecting device for use in high volt system of e.g. hybrid vehicle, has matrix-shaped electrical display unit provided for two-dimensional representation of voltages and reference voltage |
| 08/06/2009 | DE102008003586A1 Meßgerät, insbesondere Prüfgerät und/oder Multimeter Instrument, particularly test and / or multimeter |
| 08/06/2009 | DE102007003830B4 Vorrichtung zur Messung eines durch einen elektrischen Leiter fließenden elektrischen Stroms A device for measuring a current flowing through an electrical conductor of electric current |
| 08/06/2009 | CA2713702A1 System and method for home energy monitor and control |
| 08/05/2009 | EP2084721A2 Shielded rogowski coil assembly and methods |
| 08/05/2009 | EP2084720A2 Split rogowski coil current measuring device and methods |
| 08/05/2009 | CN201285700Y Combined transformer |
| 08/05/2009 | CN201285699Y Electronic mutual inductor apparatus |
| 08/05/2009 | CN201285411Y Graded DC signal tri-terminal isolation measurement apparatus for remote measuring system |
| 08/05/2009 | CN201285410Y A current sensor |
| 08/05/2009 | CN101499734A Application of rectifying conversion module in AC current meter |
| 08/05/2009 | CN101499357A Magnetic coupler |
| 08/05/2009 | CN101499211A Internet intelligent remote electric network parameter synthetic monitor |
| 08/05/2009 | CN101498748A Coaxial pulse voltage test device |
| 08/05/2009 | CN101498745A Current detecting device and method |
| 08/05/2009 | CN101498744A Rotary switch memory for digital multimeter |
| 08/05/2009 | CN101498743A Digital Multimeter having improved recording functionality |
| 08/05/2009 | CN100523829C AC power system voltage sensor |
| 08/05/2009 | CN100523828C Voltage measurer with wide measuring range |
| 08/05/2009 | CN100523827C Voltage measuring instrument with multiple range |
| 08/04/2009 | US7570044 Signal detecting circuit |
| 07/30/2009 | WO2009093178A1 Electrical current sensor |
| 07/30/2009 | DE202009005966U1 Adaptierbares Spannungsprüfgerät für Hochspannungsanlagen Adaptable voltage sensing device for high voltage systems |
| 07/30/2009 | DE19849250B4 Spannungsprüfgerät Voltage sensing device |
| 07/30/2009 | DE102008055696A1 Elektronische Schaltungseinrichtung zur Erfassung eines Detektionselementstroms und/oder einer Temperatur in diesem Detektionselement Electronic circuit means for detecting a current detection element and / or a temperature detecting element in this |
| 07/30/2009 | DE102008005663A1 Device for measuring electrical alternating voltage, has input voltage divisors that are connected with associated voltage measuring device by given connecting impendence |
| 07/29/2009 | EP2083277A1 Electrical current sensor |
| 07/29/2009 | CN201281724Y Optical current sensor |
| 07/29/2009 | CN201281723Y Embedded adapter for clamp type ammeter |
| 07/29/2009 | CN201281722Y Test wire connection hook for DC resistance of large-sized transformer |
| 07/29/2009 | CN101495874A Current-sensing apparatus and method for current sensing |
| 07/29/2009 | CN101493481A Photoelectric integration electric-field sensor based on period polarized ferroelectric crystal |
| 07/29/2009 | CN101493480A Method for protecting hanging base of electric energy meter calibrating apparatus |
| 07/29/2009 | CN101493479A Electric current generating circuit, method and electric energy meter check meter |
| 07/29/2009 | CN100520417C Detector circuit for measuring current |
| 07/29/2009 | CN100520416C System for improving signal to noise ratio of cryogenic current comparator and method thereof |
| 07/28/2009 | US7567891 Hot-carrier device degradation modeling and extraction methodologies |
| 07/28/2009 | US7567074 Measuring device for measuring differential current, trip module comprising one such measuring device and switchgear unit having one such module |
| 07/23/2009 | WO2009091803A1 Voltage compensator for dual-secondary voltage transformers |
| 07/22/2009 | CN201277992Y Full automatic digital multi-purpose meter |
| 07/22/2009 | CN201277991Y Chain high voltage sensing device |
| 07/21/2009 | US7564239 Magnetic field detector and a current monitoring device including such a detector |
| 07/21/2009 | US7564233 Shielded Rogowski coil assembly and methods |
| 07/16/2009 | WO2004044672A3 System and method for manufacturing wireless devices |
| 07/16/2009 | DE102008059130A1 Anordnung mit einem Shuntwiderstand und einem Verfahren zur Herstellung einer Anordnung mit einem Shuntwiderstand Arrangement comprising a shunt resistor and a method for producing an arrangement with a shunt resistor |
| 07/15/2009 | EP1325394B1 Wide ratio autotransformer-type current ranging |
| 07/15/2009 | EP0792465B1 A device for sensing of electric discharges in a test object |
| 07/15/2009 | CN101484812A Electrical system |
| 07/15/2009 | CN101484811A Electrical system |
| 07/15/2009 | CN101482579A Electro-optical sampling method based on polarization rotation effect of semiconductor optical amplifier |