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Measuring system

  • US 9,377,348 B2
  • Filed: 06/12/2013
  • Issued: 06/28/2016
  • Est. Priority Date: 06/15/2012
  • Status: Active Grant
First Claim
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1. A measuring system for measuring a physical quantity related to one of an electromagnetic wave and a magnetic field comprising:

  • a vibration-type actuator;

    a waveform generating unit configured to generate a driving waveform signal of the vibration-type actuator;

    an optical transmitter unit configured to receive the driving waveform signal and convert the driving waveform signal into an optical signal;

    an optical receiver unit configured to receive the optical signal and convert the optical signal into an alternating-current voltage signal; and

    a drive circuit configured to receive the alternating-current voltage signal and output a drive voltage to be applied to the vibration-type actuator,wherein the waveform generating unit and the optical transmitter unit are disposed outside a magnetic shield room, the optical receiver unit, the drive circuit, and the vibration-type actuator are disposed inside the magnetic shield room, and the optical signal is transmitted between the optical transmitter unit and the optical receiver unit.

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