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LASER ULTRASONIC MICROMANIPULATION

激光超声波显微操作

基本信息

批准号：
15510113
负责人：
TAKEUCHI Masao
金额：
$ 2.11万
依托单位：
Tamagawa university
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2004
项目状态：
已结题

项目摘要

In this study, we have studied a high performance laser ultrasonic micromanipulator (LUMM), in which the acoustic radiation force and optical radiation force are both used as complementary noncontact forces, and ultrasonic micromanipulation for use in liquid droplet processing. This study was carried out for 2 years from April, 2003 by March, 2004. The following results and prospects were obtained.1) The plate wave ( Lamb wave ) was excited in unidirectional interdigital electrode on piezoelectric substrate. The possibility of a realization of the manipulation which used radiation force of the plate wave and radiation force of laser beam complementarily was examined.2) One-dimensional transport experiment of the liquid droplet was carried out using the Lamb wave of the 6MHz band excited on piezoelectric substrate, and the application possibility to microfluidics was examined.3) The manipulator of the structure which placed 12 wedge type transducers on glass substrates using UV adhesive technology was produced experimentally. At 5.6MHz frequency of the SAW and input power 37dBm of the transducer, it succeeded in the experiment on the two-dimensional manipulation which transports distilled water droplet of about 7ml on glass substrates in the xy direction.4) Two-dimensional manipulation of the liquid droplet using the visual feedback control has been successfully achieved.5) The temperature rise of the droplet in the manipulation was examined. The experimental result showed that temperature rise was lower than the experiment on 50MHz band already reported.The part of these results was presented in the Inst. of Electrical Engineers of Japan 32nd EM symposium. And, it has submitted in IEEE Ultrasonics Symposium held in the Netherlands in September, 2005. The research will be continued on the basis of the result obtained through this study.

在这项研究中，我们研究了一种高性能激光超声微操作器（LUMM），其中声辐射力和光辐射力都用作互补的非接触力，以及用于液滴处理的超声微操作。本研究从2003年4月到2004年3月进行了两年，取得了以下成果和展望：1)在压电基板上的单向叉指电极中激发板波(兰姆波)。探讨了利用板波辐射力和激光束辐射力互补实现操纵的可能性。2)利用压电基板上激发的6MHz波段兰姆波进行了液滴的一维输运实验，并探讨了其在微流控中的应用可能性。3)在玻璃上放置12个楔形换能器的结构的操纵器实验性地生产了采用UV粘合技术的基材。在声表面波频率5.6MHz、换能器输入功率37dBm下，成功地进行了玻璃基板上约7ml蒸馏水滴在xy方向上的二维操控实验。4)成功实现了利用视觉反馈控制对液滴的二维操控。5)考察了操控中液滴的温升。实验结果表明，温升低于已经报道的50MHz频段上的实验。部分结果在Inst.日本电气工程师学会第 32 届 EM 研讨会。并已于2005年9月在荷兰举行的IEEE超声波研讨会上提交。研究将在本次研究取得的结果的基础上继续进行。