基于超声复合场的空间悬浮微粒任意点输运方法  

Approach to Arbitrary Transportation of Suspended Particles Based on Ultrasonic Composite Field

作　　者：庄龙[1] 吴立群[1] 杜锡标 张俐楠 

机构地区：[1]杭州电子科技大学,杭州310018

出　　处：《中国机械工程》2015年第22期3040-3045,3050,共7页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(51175134);浙江省自然科学基金资助项目(LZ15E050004;LY15E050024)

摘　　要：提出了基于超声复合场驱动微粒悬浮输运方法。首先从超声相控阵列的延时聚焦原理出发,建立了空间任意点聚焦模型和作用力公式,然后利用超声驻波场辐射力计算方法,建立了微粒在超声复合场下的运动控制模型和驱动力公式。通过MATLAB模拟复合声场,分析了影响聚焦性能和控制性能的因素,给出了初步实验验证结果。最后提出了任意控制微粒运动的超声复合场驱动方案。A particl field. Firstly, the array phased array ultrasonic force calculation metho e suspension transport method was proposed based on ultrasonic composite focusing model and accumulated force equation were established based on cells delay, then integrated with the standing wave ultrasonic field radiation d, the particle motion control model and driving force formula under the combined ultrasound field were introduced. Through the MATLAB simulation of complex ultrasound field, the factors that affected the focusing performance and control performance were analysed, and the preliminary test results were given and discussed. Finally,arbitrary control scheme of particle mo- tion was put forward by compound ultrasonic driving field.

关 键 词：内加工 超声悬浮 复合场 微粒输运 

分 类 号：O426.9[理学—声学]