摘要

基于数字散斑干涉(Digital Speckle Pattern Interferometry, DSPI)成像原理,提出了一种利用空间相位移技术的材料三维变形检测系统。并以薄铝板为测试材料,在固定点机械受力条件下进行了热膨胀变形测试实验。通过对检测系统进行坐标标定和不同传感器图像间的相关运算,获取三个不同视觉方向图像之间各像素的匹配关系,然后对匹配好的图像进行滤波和解包裹处理,从而可解析出物体在形变过程中X、Y、Z 三个方向的位移。结果表明所提出的方法可为非结构化环境下材料表面三维应变高精度检测提供了一种有效的方法。

Abstract

Based on the principle of digital speckle pattern interferometry (DSPI), a three-dimensional material deformation detection system based on spatial phase shifting technique is proposed. With thin aluminum plate as test materials, thermal deformation test is done under the condition of fixed point machanical force. Through the coordinate caliberation of the detection system and the correlation operations between images of different sensors, the match relationship between the pixels of three different visual orientation image is obtained. The displacement of X, Y, Z direction resulting from the deformationon interfaces of materialcan be resolved by filtering and unwrapping the correlated image. The proposed method offers an effective way for 3D strain high-precision measurement of the material surface under unstructured environment.

补充资料

中图分类号：O436.1

所属栏目：图像与信号处理

基金项目：国家自然科学基金(51575099),上海市自然科学基金(15ZR1401700)资助项目

收稿日期：2017-07-06

修改稿日期：2017-09-10

网络出版日期：--

作者单位    点击查看

联系人作者：朱昊天(183498536@qq.com)

备注：朱昊天(1993-),男,硕士研究生,主要从事散斑干涉测量和光学图像处理方面的研究工作。

【1】Yang Lian-xiang, Shang H M. Unified approach forholography and shearography insurface deformation measurement andnondestructive testing［J］. Optical Engineering, 2003, 42(5):1197-1207.

【2】Liu Kai, Wu Si-jin, Gao Xin-ya, et al. Simultaneous measurementof in-plane and out-of-plane deformations using dual-beam spatial-carrier digital speckle pattern interferometry［J］. Applied Mechanics & Materials, 2015, 782:316-325.

【3】张坚, 耿荣生. 复合材料的现场电子剪切散斑检测技术研究［J］. 无损检测, 2007, (7):378-381.
ZHANG Jian, GENG Rong-sheng. Studies on filed applicable shearography NDT of airplane composities［J］. Nondestructive Testing, 2007, (7): 378-381.

【4】梁基照, 刘冠生. PPS/CaCO3复合材料界面应力分布的三维有限元模拟［J］. 塑料科技, 2017, 35(4):58-61.
LIANG Ji-zhao, LIU Guan-sheng. 3-D finite element model on interfacial stress distribution of calcium carbonate/ polyphenylene sulfide composites［J］. Plastics Science and Technology, 2017, 35(4): 58-61.

【5】Wang Yong-hong, Feng Jia-ya, Wang Xin, et al. Shearing speckle interferometry based on slit aperture for dynamic measurement［J］. Optics & Precision Engineering, 2015, 23(3):645-651.

【6】金雪峰, 饶芮菱, 鲁怀伟. 电子散斑干涉条纹的计算机自动处理［J］. 光学与光电技术, 2007, 5(1): 64-67.
JIN Xue-feng, RAO Rui-ling, LU Huai-wei. Computer automatic processing for electronic speckle image［J］. Optics & Optoelectronic Technology, 2007, 5(1): 64-67

【7】冯秀, 何小元, 金良, 等. 基于数字剪切散斑干涉压力容器内部缺陷检测［J］. 应用激光, 2016, 36(3):341-345.
FENG Xiu, He Xiao-yuan, Jin Liang, et al. Research on inner defect detection of pressure vessels with digital shearograhy method［J］. Applied Laser, 2016, 36(3): 341-345.

【8】Santoyo FM, Pedrini G, Schedin S, et al. 3D displacement measurements of vibrating objects with multi-pulse digital holography［J］. Measurement Science & Technology, 1999, 10(12):1305.

【9】于光, 王树国, 于俊华. 数字散斑干涉技术及应用［J］. 激光技术, 2002, (3):237-240.
YU Guang, WANG Shu-guo, YU Jun-hua. Technology of digital speckle pattern interferometry and its appliations［J］. Laser Technology, 2002, (3): 237-240.

【10】钱克矛, 续伯钦, 伍小平, 等. 光学干涉计量中的位相测量方法［J］. 实验力学, 2001, 16(3):239-249.
QIAN Ke-mao, XU Bo-qin, WU Xiao-ping, et al. Phase measurement methods in optical interferometry［J］. Jouranl of Experimental Mechanics, 2001, 16(3):239-249.

【11】朱泉水, 海霞, 叶谌雯, 等. 剪切散斑干涉技术的研究［J］. 硅谷, 2013, (03):90-98.
ZHU Quan-shui, HAI Xia, YE Shen-wen, et al. Research on shearing speckle interferometry［J］. Silicon Valley, 2013, (3): 90-98.

引用该论文

ZHU Hao-tian,SHI Zai-feng,GAO Xing-yu,PAN Shao-hui,ZHONG Ping. Researchon 3D Strain Measurement of the Material Surface Under Unstructured Environment[J]. OPTICS & OPTOELECTRONIC TECHNOLOGY, 2017, 15(6): 41-45

朱昊天,施在峰,高兴宇,潘少慧,钟平. 非结构化环境下材料表面三维应变检测方法[J]. 光学与光电技术, 2017, 15(6): 41-45