传感技术学报Issue(9)：1221-1225,5.DOI:10.3969/j.issn.1004-1699.2014.09.013
基于声表面波微液滴并行加热研究
Heating Droplets in Parallel Using Surface Acoustic Wave
摘要
Abstract
A new method for heating droplets in parallel was presented. An interdigital transducer and a reflector were fabricated on a 128° yx-LiNbO3 substrate using microelectrical technology. A poly( dimethylsiloxane) microcell filled with mineral oil was mounted on the piezoelectric substrate. A pattern with multi heating zones was designed and transferred to a copper sheet with the thickness of 0.3 millimeters using laser cutting. The copper sheet was then placed on the microcell with mineral oil. Surface acoustic wave was generated by applying an electrical signal to the interdigital transducer,and the acoustic energy was radiated into the mineral oil. Droplets on the heating zones at the end of the copper sheet were then heated due to heat transfer. Experiments results show that multi droplets can be heated in parallel,and their temperature variation is increased with the electrical signal power. The volume and the number of droplets to be heated in parallel do also affect their temperature variation.关键词
声表面波/微液滴/叉指换能器/辐射/并行加热Key words
surface acoustic wave/droplets/interdigital transducer/radiation/heating in parallel EEACC:7820分类
信息技术与安全科学引用本文复制引用
章安良,查燕..基于声表面波微液滴并行加热研究[J].传感技术学报,2014,(9):1221-1225,5.基金项目
浙江省科技厅资助项目(2009R50025) （2009R50025）
宁波市自然基金资助项目(2011A610108) （2011A610108）
