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首页> 外文会议>Fifth International Conference on Optical and Photonics Engineering >Surface Roughness Measurement of Additive Manufactured Samples using Angular Speckle Correlation
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Surface Roughness Measurement of Additive Manufactured Samples using Angular Speckle Correlation

机译：使用角散斑相关性测量添加的制造样品的表面粗糙度

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摘要

A speckle pattern is a direct fingerprint of surface height variation on the sample. In this paper, angular speckle correlation technique is applied to estimate surface roughness Ra of an additive manufactured sample with different surface roughness Ra values varying from 5μm to 20μm. Feasibility study is conducted to evaluate the correct incidence and the change in incidence angle for angular speckle correlation. Speckle correlation is computed from two speckle images that are recorded at two different incidence angles on the rough surface and surface roughness information is gleaned. Test results in terms of surface roughness measurement from standard calibration plate and additive layer manufactured samples are presented.
机译：斑点图案是样品表面高度变化的直接指纹。在本文中，应用了角度散斑相关技术来估计具有不同表面粗糙度Ra值（从5μm到20μm）的增材制造样品的表面粗糙度Ra。进行可行性研究，以评估正确的入射角和入射角的变化，以实现角斑相关。从以两个不同入射角记录在粗糙表面上的两个散斑图像计算散斑相关性，并收集表面粗糙度信息。提供了根据标准校准板和添加层制造的样品进行的表面粗糙度测量的测试结果。

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  • 来源
  • 会议地点 Singapore(SG)
  • 作者

    Kapil Dev; Guru Prasad A.S.; Aswin H; Prabhathan. P; Kelvin H. K. Chan; Murukeshan V.Matham;

  • 作者单位

    Rolls-Royce@NTU Corporate Laboratory, 65 Nanyang Drive, Nanyang Technological University, Singapore 637460;

    Rolls-Royce@NTU Corporate Laboratory, 65 Nanyang Drive, Nanyang Technological University, Singapore 637460;

    Rolls-Royce@NTU Corporate Laboratory, 65 Nanyang Drive, Nanyang Technological University, Singapore 637460;

    Rolls-Royce@NTU Corporate Laboratory, 65 Nanyang Drive, Nanyang Technological University, Singapore 637460;

    Rolls-Royce@NTU Corporate Laboratory, 65 Nanyang Drive, Nanyang Technological University, Singapore 637460,Rolls-Royce Singapore, 6 Seletar Aerospace Rise, Singapore 797575;

    Rolls-Royce@NTU Corporate Laboratory, 65 Nanyang Drive, Nanyang Technological University, Singapore 637460,School of Mechanical and Aerospace Engineering, 50 Nanyang Drive, Nanyang Technological University, Singapore 639798;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Additive manufacturing; Angular speckle correlation; Non-destructive testing; Surface roughness,Laser speckle;

    机译：添加剂制造;角斑相关性；非破坏性测试;表面粗糙度，激光斑点;
  • 入库时间 2022-08-26 14:02:08

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