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  • 시편절단기 Mecatome T260
  • 국내학술대회

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    국내학술대회 제목 게시판 내용
    제목(국문) 다수 개 디스크 PZT 를 이용한 밸브리스 압전펌프의 연동구동 파형에 관한 연구
    제목(영문) A study on the peristaltic waveform of valveless PZT pump using disk type multi PZTs
    저자 함영복 (Y. B. Ham ,한국기계연구원 ) ▷공저자네트워크등록하기
    박중호 (J. -H. Park ,한국기계연구원 ) ▷공저자네트워크등록하기
    윤동현 (D. H. Yun ,한국기계연구원 ) ▷공저자네트워크등록하기
    김한석 (H. S. Kim ,한국기계연구원 ) ▷공저자 네트워크 보기
    초록 For application to micro fluid control systems such as μTAS (Micro Total Analysis Systems) and DDS (Drug Delivery Systems), it is very significant to handle precise and minute flow rates with low pressure pulsation. In this study, a novel valveless piezoelectric pump using peristaltic motion with three disk type PZT actuators is presented. The newly devised pump with an effective size of 70mm×60mm×55mm has three actuator layers connected in series from inlet to outlet. The PZT actuator has a maximum displacement of 240 μm and a maximum force of 1.6 N. When the driving voltage for PZT actuators is sequentially applied with a certain phase shift, the pumping is performed by peristaltic motion of liquid volume. The working fluid is shut off without the driving voltage. Three methods for sequential driving are proposed and experimentally investigated. First and second methods utilize an intermittent sinusoidal waveform with phase shift of 90° and 120°, respectively. Third method uses a rectangular waveform with phase shift of 90°. A controller with multi-phase shifter is designed and fabricated. Then, frequency and voltage-flow rate characteristics and load pressure-flow rate characteristics are experimentally investigated to verify the validity of the developed pump.
    keyword PZT(압전세라믹), Valveless(밸브리스), Piezoelectric pump(압전펌프), Peristaltic waveform(연동파형), Phase shift(위상시프트)
    저널명 한국정밀공학회 춘계학술대회 ▷관련저널보기
    VOL 5
    PAGE 1824-1827
    발표년도 2005
    원문파일 국문다운로드
    • 페이스북아이콘
    • 트위터 아이콘

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