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POWER MEASURING APPARATUS コモンズ

外国特許コード F130007687
整理番号 2011-038-1
掲載日 2013年10月24日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2013JP001860
国際公開番号 WO 2013/145636
国際出願日 平成25年3月19日(2013.3.19)
国際公開日 平成25年10月3日(2013.10.3)
優先権データ
  • 特願2012-072532 (2012.3.27) JP
発明の名称 (英語) POWER MEASURING APPARATUS コモンズ
発明の概要(英語)

A power measuring apparatus should be compact, and capable of measuring, in a single element, the categories of active power, reactive power, power factor and apparent power. The present invention has: a pair of connecting ends for connection to a power supply in parallel with a load

a sensor element having a pair of sensor terminals disposed on both ends of a magnetic film portion, one end of the sensor terminal being connected to one of the connecting ends, the sensor element being arranged adjacent to a connecting wire such that the longitudinal direction of the magnetic film portion is substantially parallel to the direction of flow of electric current in the connecting wire

n band pass filters connected in parallel to another end of the sensor terminals of the sensor element

a phase regulator connected in series to each of the band pass filters

a selection switch for selectively connecting the phase regulator

a measurement resistor having one end connected to the selection switch and the other end connected to the other connecting end

and a voltage detection unit, the measurement terminals of which being the respective sensor terminals, the voltage detection unit measuring the voltage between those measured terminals.

  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • OSAKA CITY UNIVERSITY
  • 発明者(英語)
  • TSUJIMOTO, HIROAKI
国際特許分類(IPC)

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