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Detection of temperature Rise at 4.2 k by Using a Dual-Core Optical Fiber - An Optical Method to Detect a Quench of a Superconducting Magnet.

  • O. Tsukamoto
  • Y. Kokubun
  • T. Toyama
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 31)

Abstract

We performed a experiment to detect a temperature rise at cryogenic temperature using a dual-core optical fiber. This fiber has two single-mode optical cores in one fiber. We demonstrated that a temperature rise of 4 K was detectable at 4.2 K. The sensitivity of this method can be improved using a longer fiber. This method may be applicable as a quench detector for superconducting magnets. A quench detector using this optical method is immune from electromagnetic noise, free from troubles caused by break-down of electrical insulator, and has many advantages over a conventional quench detector measuring voltages of a magnet.

Keywords

Temperature Rise Interference Fringe Cryogenic Temperature Electromagnetic Noise Fringe Shift 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Reference

  1. 1.
    M. Miyamoto, Y. Kikuchi, R. Yamauchi, O. Fukuda, and K. Inada, Fabrication and temperature sensing characteristics of a new dual-core single-mode fiber sensor, in: “Proc. 1983 Optical Fiber Conf.”, New Orleans, (1983).Google Scholar

Copyright information

© Plenum Press, New York 1986

Authors and Affiliations

  • O. Tsukamoto
    • 1
  • Y. Kokubun
    • 1
  • T. Toyama
    • 1
  1. 1.Faculty of EngineeringYokohama National UniversityYokohamaJapan

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