应用驻波法控制物体空间定位及位移研究  

Research on Space Positioning and Displacement Control of Object by Standing Wave Method

作　　者：刘智敏 包琰洋 刘涵 LIU Zhimin;BAO Yanyang;LIU Han(Beijing University Of Chemical Technology,Beijing,100020 China)

机构地区：[1]北京化工大学,北京100020

出　　处：《科技创新导报》2021年第7期87-90,101,共5页Science and Technology Innovation Herald

摘　　要：通过嵌入式系统单片机编程控制,采用整体3D打印设计实验用支架,基于声学原理,利用空间驻波场波节处的高声压实现轻小固体物质的空间悬浮定位,对影响悬浮性能的发生器频率、控制电路电流、电压等变量进行研究与调整,最终实现轻小物体在空间的稳定悬浮。通过嵌入式系统硬件程序调整超声波发生器发射波形的相位,使全部悬浮物在空间内实现整体位移。Based on the acoustic principle,light and small objects'levitation and spatial positioning are achieved by using the pressure difference at the node of the standing wave f ield.This device is programmed and controlled by a microcontroller and f ixed with a 3D-printing stand.Research and adjustment is made on variables that affect the levitation ability,including the freqency of ultrasonic transmitter,control circuit's voltage and current.Finally,an ideal effect is achieved.The microcontroller adjusts the phase of the ultrasonic generator's emission waveform,so that all suspended objects can be moved on a single axis simultaneously.

关 键 词：驻波声场控制空间定位 稳定空间悬浮 悬浮物在空间内整体位移 嵌入式系统控制 

分 类 号：O422.5[理学—声学]