大学物理 ›› 2016, Vol. 35 ›› Issue (7): 24-27.

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基于多普勒效应目标定位的实验设计

周战荣,徐 军,赵选科,沈晓芳   

  1. 火箭军工程大学物理教研室,陕西西安710025
  • 收稿日期:2015-08-24 修回日期:2015-11-17 出版日期:2016-07-20 发布日期:2016-07-20
  • 作者简介:周战荣(1976一),男,陕西乾县人,火箭军工程大学物理教研室副教授,硕士,主要从事大学物理教学和光

Design of experiment for target positioning based on the Doppler efect

ZHOU Zhan-rong,XU Jun,ZHOU Xuan-ke,SHEN Xiao-fang   

  1. Department of Physics,Rocket Force University of Engineering,Xi’an,Shaanxi 7 10025,China
  • Received:2015-08-24 Revised:2015-11-17 Online:2016-07-20 Published:2016-07-20

摘要: 设计一种利用声波的多普勒效应进行目标定位的实验装置.该装置是声源固定不动,接收器绕固定轴做匀速率圆周运动,在接收器运动的过程中,接收到的频率呈周期性变化,由接收器接收的最大频率和最小频率可确定出目标点的位置坐标.该实验装置不仅结构简单,成本低廉,而且具有很高的定位精度.

关键词: 多普勒效应, 目标定位, 圆周运动

Abstract: An experimental device for target location is designed by using the Doppler effect of sound wave.The device is that the sound source is fixed,and the receiver does circular motion around the fixed axis.During the process of receiver motion,the received frequency is changed periodically.The position of the target point can be determined by the maximum frequency and the minimum frequency.The device is not only simple in structure,low in cost,but also has high positioning accuracy.

Key words: Doppler effect, target positioning, circular motion