Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Study on the Level Limit Switch Using a Self Made 1-3 type Ceramic/Polymer Composite Ultrasonic Transducer

1-3형 복합압전체 초음파 트랜스듀서를 사용한 레벨Limit스위치에 관한 연구

  • 박경일 (동아대학교 전기전자컴퓨터공학부) ;
  • 김홍근 (동아대학교 전기전자컴퓨터공학부) ;
  • 신광호 (경성대학교 멀티미디어공학과) ;
  • 사공건 (동아대학교 전기전자컴퓨터공학부)
  • Published : 2003.07.10
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Abstract

In this study, an ultrasonic transducer is fabricated with a 1-3 type composite resonator. Pulse-echo responses of an ultrasonic transducer are investigated in underwater with the designated water-levels. LED output signals of a level limit switch with changing a water level are obtained by using the currently developed self-made 1-3 type composite transducer and electric measuring unit. LED is turned on at above the up-limit level with increasing a water level, and LED is turned on at less than the down-limit level with decreasing a water level.

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