单球面镜共轴反射式纹影仪的制作与应用  

Fabrication and application of single spherical mirrorcoaxial reflection schlieren instrument

作　　者：赵贺佳 段雪松[1] 孔祥明[1] 吴建海[1] ZHAO Hejia;DUAN Xuesong;KONG Xiangming;WU Jianhai(College of Science,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]河北工业大学理学院,天津300130

出　　处：《物理实验》2025年第2期34-38,45,共6页Physics Experimentation

基　　金：河北工业大学2022-2023年度本科教育教学改革研究与实践项目(重点)(No.202201001);2024年度河北省实验教学和教学实验室建设研究项目。

摘　　要：纹影仪可将肉眼无法观察到的流场流动过程转化为可观察的纹影图像.基于纹影成像原理设计并制作了单球面镜共轴反射式纹影仪,并用该纹影仪观察了超声驻波和马赫环现象.在液体流场的观测方面,制作了彩色纹影刀口,并观测了水在加热过程中的热对流现象.The schlieren apparatus converts the flow processes that are invisible to the naked eye into observable schlieren images.The single spherical mirror coaxial reflection schlieren apparatus was designed and fabricated according to the principles of schlieren imaging.This apparatus was used to observe phenomena such as ultrasonic standing waves and Mach rings.For the observation of liquid flow field,a color schlieren knife-edge was developed,and heat convection during the water-heating process was successfully visualized.

关 键 词：纹影仪 超声驻波 马赫环 液体流场 

分 类 号：O436.1[机械工程—光学工程]