Design of fresnel lens-type multi-trapping acoustic tweezers

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題名:	Design of fresnel lens-type multi-trapping acoustic tweezers
作者:	陳世叡;Tu, You-Lin;Chen, Shih-Jui;Hwang, Yean-Ren
貢獻者:	工學院機械工程學系
關鍵詞:	acoustic tweezers;Acoustics;Fresnel lens;particle trapping
日期:	2016-11-23
上傳時間:	2026-04-23 14:56:44 (UTC+8)
出版者:	MDPI Multidisciplinary Digital Publishing Institute;Switzerland: MDPI AG
摘要:	摘要： In this paper, acoustic tweezers which use beam forming performed by a Fresnel zone plate are proposed. The performance has been demonstrated by finite element analysis, including the acoustic intensity, acoustic pressure, acoustic potential energy, gradient force, and particle distribution. The acoustic tweezers use an ultrasound beam produced by a lead zirconate titanate (PZT) transducer operating at 2.4 MHz and 100 Vpeak-to-peak in a water medium. The design of the Fresnel lens (zone plate) is based on air reflection, acoustic impedance matching, and the Fresnel half-wave band (FHWB) theory. This acoustic Fresnel lens can produce gradient force and acoustic potential wells that allow the capture and manipulation of single particles or clusters of particles. Simulation results strongly indicate a good trapping ability, for particles under 150 µm in diameter, in the minimum energy location. This can be useful for cell or microorganism manipulation. 其他題名： Sensors (Basel) 出版者： Switzerland: MDPI AG 出版日期： 2016-11-23 出處： Sensors (Basel, Switzerland), 2016-11, Vol.16 (11), p.1973 資源來源： Directory of Open Access Journals 版權： 2016. This work is licensed under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. 版權： 2016 by the authors; licensee MDPI, Basel, Switzerland. 2016 識別號： ISSN: 1424-8220 識別號： EISSN: 1424-8220 識別號： DOI: 10.3390/s16111973 識別號： PMID: 27886050
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