平面相控阵下微小固体的超声波悬浮与移动  

Ultrasonic levitation and movement of tiny solids in planar phased array

作　　者：牟天钰 裴艺丽 张师平[1] 陈可 张烨 刘兴国 吴平 MU Tian-yu;Pei Yi-li;ZHANG Shi-ping;CHEN Ke;ZHANG Ye;LIU Xing-guo;WU Ping(School of Mathematics and Physics,University of Science and Technology Beijing,Beijing 100083,China;Basis Experimental Center of Natural Science,University of Science and Technology Beijing,Beijing 100083,China;School of Computer and Communication Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京科技大学数理学院,北京100083 [2]北京科技大学自然科学基础实验中心,北京100083 [3]北京科技大学计算机与通信工程学院,北京100083

出　　处：《物理实验》2022年第10期1-6,共6页Physics Experimentation

基　　金：北京科技大学2021年度本科教育教学改革重点项目资助(No.JG2021Z05);北京科技大学2021年度仪器设备专项研究课题资助(No.YSZ202101);教育部教学指导委员会2020年高等学校教学研究项目资助(No.DJZW202006hb)。

摘　　要：采用平面相控阵作为超声波的声源形式,使上下相对的2组换能器阵列发出具有平面波形式的波前,提出三维移动的“分区运行”新方案,并利用Matlab软件解析出在特定形式参量下声势场的性质.设计了可以对空气中的固体微粒实现悬浮及三维移动的声学装置,在此基础上进行实验研究,实验结果与理论计算的匹配度较好,且装置具有低能耗、高悬浮性能的特点.The planar phased array being used as the sound source of ultrasonic wave,the two groups of transducer arrays opposite to each other could send out a wave front in the form of plane wave.A new scheme of“partition operation”for 3D mobility was proposed and the analytic calculation of the sound potential field was carried out by Matlab under the certain parameters.An acoustic device that could levitate and manipulate the small solids in three-dimensional was designed.The experimental research and analysis demonstrated that the results based on the device matched well with the theoretical calculation,and the device had the characteristics of low energy consumption and high levitation performance as well.

关 键 词：超声悬浮 平面相控阵 三维空间移动 

分 类 号：O441.4[理学—电磁学]