基于沃拉斯顿棱镜的错位散斑干涉复合材料无损检测仪  

A shearography nondestructive testing instrument for composite based on Wollaston prism

作　　者：于霄翊 曾启林 徐宋通 熊显名[1] 张文涛[1] 杜浩 石冯睿 YU Xiaoyi;ZENG Qilin;XU Songtong;XIONG Xianming;ZHANG Wentao;DU Hao;SHI Fengrui(School of Optoelectronic Engineering,Guilin University of Electronic Technology,Guilin 541004,China)

机构地区：[1]桂林电子科技大学光电工程学院,桂林541004

出　　处：《无损检测》2024年第1期77-81,84,共6页Nondestructive Testing

基　　金：国家重点研发计划项目(2022YFF0605502);国家科技重大专项课题(2017ZX02101007-003);国家自然科学基金(61965005);国家自然科学基金(62205076);广西自然科学基金(2019GXNSFDA185010);广西重点研发计划项目(AB22035047);上海市在线检测与控制技术重点实验室开放基金项目(ZX2021104)。

摘　　要：激光错位散斑干涉技术具有全场非接触、高精度和高灵敏度等优点,被广泛应用于复合材料的无损检测领域。针对实际工程应用中的复合材料缺陷检测,提出了一种结构紧凑、抗干扰能力强的基于沃拉斯顿棱镜的错位散斑干涉无损检测仪,实现了对缺陷的实时动态检测。使用该检测仪对不同类型复合材料中的缺陷进行检测,检出率可达97%,可检测的最小缺陷尺寸为?2 mm。Shearography technique has the advantages of full-field noncontact,high precision and high sensitivity,and is widely used in the field of nondestructive detection of composites.For the practical engineering application of composite defect detection,a shearography nondestructive instrument based on a Wollaston prism with compact structure and strong anti-interference ability was proposed,so as to realize real-time dynamic defect detection.The system was used to teste the different types of composite materials.It achieved a detection rate of 97%and can detect defects as small as 2 mm.

关 键 词：错位散斑干涉 复合材料 沃拉斯顿棱镜 动态检测 

分 类 号：TG155.28[金属学及工艺—热处理] TB96[金属学及工艺—金属学] TG115.28[机械工程—光学工程]