基于4f的大视角剪切散斑干涉系统设计

冯家亚, 王永红, 王鑫, 吴思进, 杨连祥

冯家亚, 王永红, 王鑫, 吴思进, 杨连祥. 基于4f的大视角剪切散斑干涉系统设计[J]. 应用光学, 2015, 36(2): 188-193. DOI: 10.5768/JAO201536.0201005
引用本文: 冯家亚, 王永红, 王鑫, 吴思进, 杨连祥. 基于4f的大视角剪切散斑干涉系统设计[J]. 应用光学, 2015, 36(2): 188-193. DOI: 10.5768/JAO201536.0201005
shu
Feng Jia-ya, Wang Yong-hong, Wang Xin, Wu Si-jin, Yang Lian-xiang. Design of digital shearography with wide angle of view based on 4f system[J]. Journal of Applied Optics, 2015, 36(2): 188-193. DOI: 10.5768/JAO201536.0201005
Citation: Feng Jia-ya, Wang Yong-hong, Wang Xin, Wu Si-jin, Yang Lian-xiang. Design of digital shearography with wide angle of view based on 4f system[J]. Journal of Applied Optics, 2015, 36(2): 188-193. DOI: 10.5768/JAO201536.0201005
shu

基于4f的大视角剪切散斑干涉系统设计

  • 1.

    合肥工业大学,安徽 合肥 230009;

  • 2.

    北京信息科技大学 仪器科学与光电工程学院,北京100192

基金项目: 

国家自然科学基金项目(51375136);安徽省国际科技合作计划（12030603012）; 中航工业产学研专项基金(CXY2013HFGD22)

详细信息
    作者简介:

    冯家亚(1990-)，女，湖北洪湖人，硕士研究生，主要从事测试技术及仪器设计方面的研究工作。 Email: fly0526@163.com

    通讯作者:

    王永红(1972-)，男，安徽合肥人，博士后，教授，研究生导师，主要从事精密测试技术及仪器、光电检测、机器视觉等方面的研究。Email: yhwang@hfut.edu.cn

  • 中图分类号: TN202;TH741

Design of digital shearography with wide angle of view based on 4f system

  • 1.

    Hefei University of Technology,Hefei 230009,China;

  • 2.

    Beijing Information Science and Technology University,Beijing 100192,China

摘要

    摘要
  • 摘要: 数字剪切散斑干涉技术在工业无损检测领域有广阔的应用前景，传统的迈克尔逊型数字剪切散斑干涉仪由于结构的限制，视场角很小，这限制了其在工程上的应用。介绍一种新型的大视角剪切散斑干涉系统，通过在成像镜头和CCD传感器之间嵌入4f光学系统来扩大其视场角，并实现镜头的外置。理论分析证明，视场角不再受到迈克尔逊结构的限制，仅仅取决于镜头的焦距和CCD传感器的靶面尺寸。设计并组建了一个大视场角迈克尔逊剪切散斑干涉系统，对比实验表明，在短的工作距离下实现了大视场的全场检测，在1 m的测距下，新系统测量面积可达800 mm600 mm，而传统的系统测量面积只有250 mm200 mm。
    Abstract: Digital shearography has broad application prospects in the field of industrial non-destructive inspection. However, the traditional Michelson-interfero-meter-based digital shearography suffers from the small angle of view due to the structure,which limits its employments in industrial application . We demonstrated a novel digital shearography system with a large angle of view by embedding a 4f optical system between the separate lens and camera, achieving the lens outside of the instrument housing. Theoretical analysis shows that the angle of view has no limit to the setup but it is based on the focus length of the imaging lens and the size of the imaging sensor inside the camera. A novel digital shearography system was built and experimental results prove that the new shearography system is a good tool to conduct the full field inspection of a big size sample at a short working distance. At a working distance of 1m, the measuring area of the novel shearography system is 800 mm 600 mm, compared with only 250 mm200 mm of the traditional one.
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    • 参考文献(1)
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