Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Development of Piezoelectric Level Switch for High Temperature

고온용 압전 레벨 스위치 개발

  • Kim, Na-Ri (Electronic Materials Convergency Division, Korea Institute of Ceramic Engineering and Technology) ;
  • Lee, Young-Jin (Electronic Materials Convergency Division, Korea Institute of Ceramic Engineering and Technology)
  • 김나리 (한국세라믹기술원 전자소재융합본부) ;
  • 이영진 (한국세라믹기술원 전자소재융합본부)
  • Received : 2015.10.07
  • Accepted : 2015.11.24
  • Published : 2015.12.01
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Abstract

This paper describes the development of a piezoelectric level switch, which aims to effectively monitor the level status in high ambient temperatures. In order to adjust the impedance near the resonant frequency and temperature characteristics, the effect of the case and backing layer materials on its performance was analyzed using the finite element method (FEM). The suggested prototype new level switch has three heat-sink plates attached to SUS bar of 230 mm long, and case of PEEK which contains PZT sensing part. To illustrate the validity of this level switch, 10 samples are prepared and investigated the sensing performance through the high and low temperature ambient.

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References

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