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基于大错位方棱镜的三维载频电子散斑干涉技术

Three-Dimensional Electronic Speckle Pattern Interferometry with Carrier Modulation by Using Large-Shearing Block Prism

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摘要

提出了一种利用载频电子散斑干涉测量三维位移场的新技术。首先,设计了一种新型的大错位方棱镜,利用该方棱镜可实现大错位电子散斑干涉。其次,被测物和参考物由布置在水平和竖直位置上的3个激光光源分别照明,三维电子散斑干涉系统由3个激光器、大错位方棱镜、CCD和参考物面组成。参考物面的一次偏转可同时引入3个干涉场的载波条纹。分别采集3个激光器照明下物体形变前后及参考物面偏转后的散斑干涉图样,图像相减后得到不同照明条件下的载波条纹和受形变调制的载波条纹。结合傅里叶变换方法,可解调出形变场的相位,进一步计算得到3个位移分量。利用该三维测量系统对三点弯曲梁进行了典型实验,实验结果表明,该系统可以有效的同时测量形变场的3个位移分量。具有光路简单,操作相对简单的优点,为电子散斑干涉三维测量提供了新的途径。

Abstract

A technique with carrier modulation for three-dimensional displacement measurement by using electronic speckle pattern interferometry (ESPI) is presented. Firstly, a new block prism, named large-shearing block prism, is designed. A large-shearing electronic speckle pattern interferometer can be constituted when large-shearing block prism is used. Secondly, the test object and reference object are illuminated separately by three lasers which are fixed on horizontal and perpendicular position. A new three-dimensional (3D) ESPI system is constructed by three lasers, a large-shearing block prism and a CCD camera as well as a reference object. The carrier fringes in three interference fields can be introduced by rotating the reference object with a small angle. Interference speckle patterns before and after deformation, and interference speckle patterns after rotation of reference surface are collected when three lasers are used respectively. After the images are subtracted, three carrier fringe patterns and three modulated carrier fringe patterns under different illumination are obtained. Finally, three phase maps can be demodulated by using Fourier transform. Further phase calculation is needed to separate three displacement components. A typical three-point-bending-beam experiment is completed by the 3D system presented. Experimental results are offered, which show that three displacement components can be determined effectively. The 3D system has simple optical setup and has an easy way to operate, therefore it provides a new approach to three-dimensional deformation measurement.

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中图分类号:O436.1

DOI:10.3788/aos201131.0412012

所属栏目:仪器,测量与计量

基金项目:山东省科技攻关项目(2007GG20004002)资助课题。

收稿日期:2010-09-01

修改稿日期:2010-11-02

网络出版日期:0001-01-01

作者单位    点击查看

孙平:山东师范大学物理与电子科学学院, 山东 济南 250014
范香菊:山东师范大学物理与电子科学学院, 山东 济南 250014
王兴海:山东师范大学物理与电子科学学院, 山东 济南 250014

联系人作者:孙平(sunpingmail@sohu.com)

备注:孙平(1964—),男,博士,教授,主要从事散斑干涉、云纹干涉光测量技术等方面的研究。

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【2】Tong Jingwei. Automatic analysis of three-dimensional displacemnet filed using ESPI[J]. Opt. & Lasers in Engng., 1997, 26(6): 515~529

【3】Amalia Martínez, Juan A. Rayas, Ramón Rodríguez-Vera et al.. Three-dimensional deformation measurement from the combination of in-plane and out-of-plane electronic speckle pattern interferometers[J]. Appl. Opt., 2004, 43(24): 4652~4658

【4】Sun Ping, Han Qing, Wang Xiaofeng et al.. The technique of 3D carrier modulation in ESPI and its application in displacement measurement of diesel engine[J]. Acta Photonica Sinica, 2007, 36(7): 1326~1330
孙平, 韩青, 王晓风 等. 三维电子散斑干涉载频调制及其在柴油机上的应用[J]. 光子学报, 2007, 36(7): 1326~1330

【5】Eric B. Flynn, Lori C. Bassman, Timothy P. Smith et al.. Three-wavelength electronic speckle pattern interferometry with the Fourier-transform method for simultaneous measurement of microstructure-scale deformations in three dimensions[J]. Appl. Opt., 2006, 45(14): 3218~3225

【6】Sun Ping, Zhang Hongming, Lu Peng et al.. Study on isolation of displacement fields in 3D phase-shifting ESPI[J]. J. Optoelectronics Laser, 2004, 15(2): 199~201
孙平, 张虹明, 陆鹏 等. 三维相移电子散斑干涉中的位移场分离研究[J]. 光电子激光, 2004, 15(2): 199~201

【7】Sun Ping, Li Aihua, Zhang Li et al.. Three dimensional displacement measurement in ESPI by using reversed phase calculation[J]. Acta Optica Sinica, 2006, 26(2): 193~196
孙平, 李爱华, 张丽 等. 在电子散斑干涉中利用反相位法进行三维形变测量[J]. 光学学报, 2006, 26(2): 193~196

【8】Y. Y. Hung, C. Y. Liang. Image-shearing camera for direct measurement of surface strains[J]. Appl. Opt., 1979, 18(7): 1046~1051

【9】Sun Ping, Li Aihua, Tao Chunxian et al.. Carrier modulation for large-shearing electronic speckle patterns and displacement measurement[J]. Acta Optica Sinica, 2006, 26(3): 447~451
孙平, 李爱华, 陶春先 等. 大剪切电子散斑干涉的载频调制与位移场测量[J]. 光学学报, 2006, 26(3): 447~451

【10】Sun Ping, Zhang Xi, Wang Haifeng. Study on combined method based on 3D ESPI[J]. Chinese J. Lasers, 2002, B11(3): 189~192

【11】Zhang Xi, Sun Ping, Wang Haifeng. 3D-ESPI with phase-shifting and its application in diesel engine research[J]. J. Experimental Mechanics, 2002, 17(4): 393~397
张熹, 孙平, 王海锋. 三维相移电子散斑干涉法在柴油机机身中的应用[J]. 实验力学, 2002, 17(4): 393~397

【12】Sun Ping, Wang Haifeng, Zhang Xi et al.. Study on three-dimensional ESPI and its application[J]. Acta Optica Sinica, 2003, 23(7): 840~844
孙平, 王海锋, 张熹 等. 三维电子散斑干涉技术及其应用研究[J]. 光学学报, 2003, 23(7): 840~844

【13】Sun Ping. The separation of out-of-plane displacement from in-plane components by fringe carrier method based on large image-shearing ESPI[J]. Opt. Commum., 2007, 275(2): 305~310

【14】J. N. Petzing, J. R. Tyrer. Recent development and applications in electronic speckle pattern interferometry[J]. J. Strain Analysis, 1998, 33(2): 153~169

【15】Sun Ping, Tao Chunxian, Zhang Li et al.. Spatial modulation and demodulation for electronic speckle patterns[J]. J. Optoelectronics Laser, 2005, 16(9): 1093~1096
孙平, 陶春先, 张丽 等. 电子散斑干涉场的空间调制与解调技术[J]. 光电子激光, 2005, 16(9): 1093~1096

【16】Thorsten Siebert, Karsten Splitthof, Andreas Ettemeyer. A practical approach to the problem of the absolute phase in speckle interferometry[J]. J. Holography and Speckle, 2004, 1(1): 32~38

引用该论文

Sun Ping,Fan Xiangju,Wang Xinghai. Three-Dimensional Electronic Speckle Pattern Interferometry with Carrier Modulation by Using Large-Shearing Block Prism[J]. Acta Optica Sinica, 2011, 31(4): 0412012

孙平,范香菊,王兴海. 基于大错位方棱镜的三维载频电子散斑干涉技术[J]. 光学学报, 2011, 31(4): 0412012

被引情况

【1】林振衡. 基于调制方向提取载波散斑条纹中心线的方法. 光子学报, 2012, 41(7): 800-804

【2】孙明勇,蔡康,杨德宇,孙平. 数字散斑相关法和电子散斑干涉术相结合的三维变形测量方法. 激光与光电子学进展, 2012, 49(11): 111201--1

【3】林振衡. 基于条纹中心线的载波散斑条纹解调方法. 光子学报, 2013, 42(1): 19-23

【4】朱猛,黄战华,李翔宇,李秀明. 菲涅耳双棱镜载频散斑干涉形变测量系统. 光学学报, 2013, 33(9): 912003--1

【5】刘寿先,温伟峰,袁树云,陈光华,刘俊,彭其先,李泽仁. 分幅面成像任意反射面速度干涉仪诊断激光驱动飞片全场速度. 光学学报, 2013, 33(9): 912007--1

【6】蔡怀宇,焦梦锦,黄战华,郭震东. 提高散斑场纵向相关性的相位编码调制方法. 激光与光电子学进展, 2014, 51(10): 101203--1

【7】孙平,李兴龙,孙海滨,李峰. 涡旋光的干涉特性及其在变形测量中的应用. 光子学报, 2014, 43(9): 912001--1

【8】蔡怀宇,郭震东,黄战华,李青青. 抑制散斑干涉测量中退相关的相位调制方法. 激光与光电子学进展, 2016, 53(4): 41203--1

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