纹影技术综述

An Overview of the Schlieren Technology

纹影技术是一种无接触式光学技术,可以将不可见的相位分布转换为清晰的可见图像。该文将简述多种纹影技术的发展历程及各类纹影技术在国内外的发展现状,然后将阐述彩色纹影技术、激光纹影技术和背景纹影技术的基本光学原理以及各类纹影法在不同领域中的研究与应用,还总结了各种纹影技术在实际操作及其实验模拟等方面的具体应用方法,展示了其在不同领域的极高的普适性,列举了目前纹影技术的一系列优点与不足之处,并指出了纹影法在实际运用中所需要注意的问题。

Schlieren technique is a non-contact optical technique,which can convert invisible phase distributions into clear visible images.This paper briefly introduces the development history of multiple schlieren techniques and the development status of various schlieren techniques at home and abroad,then expounds the basic optical principles of color schlieren technique,laser schlieren technique and background schlieren technique,as well as the research and application of various schlieren methods in different fields,also summarizes the specific application methods of various schlieren techniques in the practical operation,experimental simulation and other aspects,shows their high universality in different fields,lists a series of advantages and disadvantages of current schlieren technique,and points out the problems that need attention in the practical application of the schlieren method.