On roughness measurement by angular speckle correlation

In this w ork, the influence of both characteristics of the le ns and misalignment of the incident beams on roughness measurement is presented. To investigate how the fo cal length and diameter affect the degree of correlation between the speckle patterns, a set of experiments with different lenses is performed. On the other hand, the roughness when the beams separated by an amount are non-coincident at the same point on the sample is measured. To conclude the study, the uncertainty of the me thod is calculated.

[1]  U. Persson,et al.  Measurement of surface roughness on rough machined surfaces using spectral speckle correlation and image analysis , 1993 .

[2]  M Buendía,et al.  Speckle correlation technique to determine roughness in the dermatologic interval. , 1988, Physics in medicine and biology.

[3]  S. Patzelt,et al.  Surface roughness measurement by means of polychromatic speckle elongation. , 1997, Applied optics.

[4]  I. Yamaguchi,et al.  Measurement of surface roughness by speckle correlation , 2004 .

[5]  A. Murugarajan,et al.  Measurement, Modeling and Evaluation of Surface Parameter Using Capacitive-Sensor-Based Measurement System , 2011 .

[6]  B. Ruffing,et al.  Application of speckle-correlation methods to surface-roughness measurement: a theoretical study , 1986 .

[7]  Joseph W. Goodman,et al.  Dependence of image speckle contrast on surface roughness , 1975 .

[8]  C J Tay,et al.  Whole-field determination of surface roughness by speckle correlation. , 1995, Applied optics.

[9]  Anna Zawada-Tomkiewicz,et al.  Estimation of surface roughness parameter based on machined surface image , 2010 .

[10]  M. Wieczorowski,et al.  The Use of Surface Asperities Analysis to Investigate Wear of Bodies in Contact on Example of Brake Elements , 2010 .

[11]  Adam Boryczko.  Profile irregularities of turned surfaces as a result of machine tool interactions , 2011 .

[12]  J. Taylor.  An Introduction to Error Analysis , 1982 .

[13]  Sergio Musazzi,et al.  Surface roughness measurements by means of speckle wavelength decorrelation , 1979 .

[14]  Paweł Twardowski,et al.  Surface Roughness Analysis in Milling of Tungsten Carbide with CBN Cutters , 2011 .

[15]  Domenica Paoletti,et al.  Digital speckle correlation for on-line real-time measurement , 1996 .

[16]  U. Persson,et al.  Surface Roughness Measurement on Machined Surfaces using Angular Speckle Correlation , 2006 .