A virtual instrument based on lightwave scattering by surfaces for real-time mapping of atmospheric corrosion of metals

Arunachalam Ponnusamy Kabilan; Marimuthu Paulvanna Nayaki; Sadagopan Sathiyanarayanan

doi:10.1117/12.574467

14 February 2005 A virtual instrument based on lightwave scattering by surfaces for real-time mapping of atmospheric corrosion of metals

Arunachalam Ponnusamy Kabilan, Marimuthu Paulvanna Nayaki, Sadagopan Sathiyanarayanan

Author Affiliations +

Proceedings Volume 5634, Advanced Sensor Systems and Applications II; (2005) https://doi.org/10.1117/12.574467
Event: Photonics Asia, 2004, Beijing, China

Abstract

The present work reports the design and implementation of an optical-sensor based virtual instrument for visualizing and estimating the degree of corrosion of metal surfaces exposed to atmosphere. A platform carrying the specimen plates was driven by a stepper motor assembly horizontally in XY directions. An opto-electronic transmitter-receiver unit was fixed vertically very close to the platform so that the sample surfaces may be scanned by a light beam. The reflected and scattered optical signals from each point in the scanned area were acquired by the sensor module. A parameter incorporating the relative values of these signals proved to be a fairly reliable measure of the surface texture, which in turn consistently represented the degree of corrosion. These signals interfaced with a personal computer enabled 3D visualization of the magnitude of the corrosion level of the surface and 2D mapping of the surface corrosion.

Citation Download Citation

Arunachalam Ponnusamy Kabilan, Marimuthu Paulvanna Nayaki, and Sadagopan Sathiyanarayanan "A virtual instrument based on lightwave scattering by surfaces for real-time mapping of atmospheric corrosion of metals", Proc. SPIE 5634, Advanced Sensor Systems and Applications II, (14 February 2005); https://doi.org/10.1117/12.574467

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