摘要
研制了一种可观测和研究超声波现象、特性和应用设计的综合实验装置,该装置采用三维测量结构设计,有距离测量和角度测量装置,可以完成超声波的折射、干涉、衍射、超声波衰减和布拉格衍射等系列超声波实验内容。有利于学生更好地了解和掌握超声波的基本特性和测量方法,并有利于学生进行自主设计和内容拓展。该装置的特色之一在于用超声波发生器替代X射线源,进行布拉格衍射实验的研究,避免了X射线的辐射,同时测量了"晶体"模型的"晶格常数"。
This paper introduces a comprehensive experimental device for observing and studying ultrasonic phenomena,characteristics and application design. The device uses 3-dimensional measurement structure design,can complete distance measurement and angle measuring. It can complete the ultrasonic refraction, interference, diffraction,ultrasonic attenuation,Bragg diffraction and other ultrasonic experimental contents. It is conducive for students to better understand and master the basic characteristics of ultrasound and measurement methods,also design by themselves and do further research. One of the characteristics of this device is to replace the X-ray source with an ultrasonic generator to study the Bragg diffraction experiment,it avoids X-ray radiation and measures the " lattice constant" of the " crystal" model.
出处
《实验室研究与探索》
CAS
北大核心
2018年第1期71-74,共4页
Research and Exploration In Laboratory
基金
湖北省高等学校优秀中青年科技创新团队计划项目(T201531)
关键词
超声波
三维扫描
布拉格衍射
ultrasound
three-dimensional scanning
Bragg diffraction