Paper Title:
Analysis on Combination of Different Wavelengths in Surface Roughness Measurement by Polychromatic Laser Speckle Patterns
  Abstract

Based on the method of polychromatic speckle autocorrelation measuring surface roughness, this paper discussed the influence of the combination of different wavelengths on speckle patterns and speckle elongation ratio when rough surface and polychromatic speckle patterns were simulated. The results show that the smaller the difference of wavelengths combination is, the further peak of the speckle elongation ratio is from the speckle field centre, for the same surface roughness. And the wider area of speckle elongation effects extends. Therefore, influence of combination of wavelengths on measurement precision should be taken into consideration during measuring process.

  Info
Periodical
Advanced Materials Research (Volumes 189-193)
Edited by
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
Pages
1978-1981
DOI
10.4028/www.scientific.net/AMR.189-193.1978
Citation
J. Huang, J. W. Zhang, Y. H. Zhang, Z. H. Yuan, "Analysis on Combination of Different Wavelengths in Surface Roughness Measurement by Polychromatic Laser Speckle Patterns", Advanced Materials Research, Vols. 189-193, pp. 1978-1981, 2011
Online since
February 2011
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$32.00
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