Detection of small surface defects of nontransparent scattering materials by using dynamic speckles

Igor S. Sidorov; Ervin Nippolainen; Alexei A. Kamshilin

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Detection of small surface defects of nontransparent scattering materials by using dynamic speckles

机译：动态斑点检测不透明散射材料的细小表面缺陷

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We present a novel method for small surface defect detection based on the spatially filtered dynamic speckles. This method possesses high fidelity and versatility. Factors defining resolution of the proposed method is estimated and it is shown that resolution depends solely on the geometrical parameters of the optical system. Experimental results demonstrate feasibility of the proposed method for surface defect detection and are in good agreement with the theoretical estimations. A prototype for online detection of the defects with diameter of 400 (mu)m is presented. Ways to improve prototype performance and the method resolution are discussed.

机译：我们提出了一种基于空间滤波动态斑点的小表面缺陷检测的新方法。该方法具有高保真度和多功能性。估计了定义该方法的分辨率的因素，结果表明分辨率仅取决于光学系统的几何参数。实验结果证明了该方法在表面缺陷检测中的可行性，与理论估计吻合良好。提出了一种在线检测直径为400μm的缺陷的原型。讨论了提高原型性能和方法分辨率的方法。

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《Applied optics》 |2012年第11期|共7页
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Igor S. Sidorov; Ervin Nippolainen; Alexei A. Kamshilin;
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1. Detection of small surface defects of nontransparent scattering materials by using dynamic speckles [J] . Igor S. Sidorov, Ervin Nippolainen, Alexei A. Kamshilin Applied optics . 2012,第11期

机译：动态斑点检测不透明散射材料的细小表面缺陷
2. Pulsed Acousto-optic Imaging in Dynamic Scattering Media with Heterodyne Parallel Speckle Detection [J] . M. Atlan, B. C. Forget, E Ramaz Optics Letters . 2005,第11期

机译：杂散平行斑点检测在动态散射介质中的脉冲声光成像
3. Roughness measurement of moving weak-scattering surface by dynamic speckle image [J] . Zhao Gao, Xuezeng Zhao Optics and Lasers in Engineering . 2012,第5期

机译：动态散斑图像测量运动弱散射表面的粗糙度
4. NDE surface and subsurface defect detection in materials using an optically gated scatter reflectometer [C] . M. Bashkansky, M. D. Duncan, J. Reintjes Meeting of the Society for Machinery Failure Prevention Technology . 1999

机译：使用光控散射反射仪检测材料中的NDE表面和亚表面缺陷
5. Effects of material microstructure and surface geometry on ultrasonic scattering and flaw detection. [D] . Guo, Yanming. 2003

机译：材料微观结构和表面几何形状对超声散射和探伤的影响。
6. Research Progress of Automated Visual Surface Defect Detection for Industrial Metal Planar Materials [O] . Xiaoxin Fang, Qiwu Luo, Bingxing Zhou, 2020

机译：工业金属平面材料自动视觉表面缺陷检测研究进展
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Detection of small surface defects of nontransparent scattering materials by using dynamic speckles

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