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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A study on characteristics of piezo-buzzer for pressure sensor

압력센서용 압전부저의 특성에 관한 연구

  • 신영록 (동아대학교 전기전자컴퓨터공학부) ;
  • 김홍근 (동아대학교 전기전자컴퓨터공학부) ;
  • 김철한 (동아대학교 전기전자컴퓨터공학부) ;
  • 최헌일 (동아대학교 전기전자컴퓨터공학부) ;
  • 사공건 (동아대학교 전기전자컴퓨터공학부)
  • Published : 2001.07.01
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Abstract

A piezo-buzzer being used for the purpose of generation of audible frequency, which is a electric-acoustic transducer utilizing the inverse piezoelectric effect. Also it can be used for a pressure sensor according to the piezoelectric effect. But the output of a piezo-buzzer is a differential signal. In this study, we've made a system that can measure a real pressure by integration of output signal. According to our results, it could be found a possibility of application for pressure sensor by measurement of output characteristics when a piezo-buzzer was pressurized and depressurized, and by measuring of an error by means of the drift current of OP-Amp, etc..

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