三维声发射源定位实验简易实现方法  

A simple experimental method of 3D acoustic source localization

作　　者：崔志文[1] 尹莘新 CUI Zhi-wen;YIN Shen-xin(College of Physics,Jilin University,Changchun,Jilin 130012,China;College of Aerospace engineering,Chongqing University,Chongqing 400044,China)

机构地区：[1]吉林大学物理学院,吉林长春130012 [2]重庆大学航空航天学院,重庆400044

出　　处：《大学物理》2021年第8期36-39,80,共5页College Physics

基　　金：吉林省教育厅“十三五”科学技术研究项目(JJKH20190182KJ);声场声信息国家重点实验室开放课题研究基金(SKLA202010)资助。

摘　　要：本文针对声发射技术中的三维定位问题提出一种新的简易实验方案.通过传感器接收的时差信息和空间坐标实现三维立体结构中的声发射源定位,操作和计算简单,降低了实验成本.该实验方法不仅可以直观地实现三维声发射源定位过程,还可以实现声速的测量.本设计加深了学生对物理问题的理解,提高了学生对声发射技术和声源定位技术的兴趣,适合普及.A new simple experimental method of three-dimensional acoustic source localization problem is proposed.Acoustic source localization in a three-dimensional structure is realized by the time difference information and space coordinates of sensors.The operation and calculation are simple.The experiment cost is also reduced.This experimental method can not only intuitively realize the three-dimensional acoustic emission source localization process,but also realize the measurement of sound velocity.This simple experiment method can deepen students'understanding of physics issues and increase their interest in acoustic emission technology and source localization technology.The proposed experimental method is suitable for popularization.

关 键 词：声发射技术 声源定位 三维 到达时差 

分 类 号：O426.9[理学—声学]