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Proceedings Paper

A virtual instrument based on lightwave scattering by surfaces for real-time mapping of atmospheric corrosion of metals
Author(s): Arunachalam Ponnusamy Kabilan; Marimuthu Paulvanna Nayaki; Sadagopan Sathiyanarayanan
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Paper 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.

Paper Details

Date Published: 14 February 2005
PDF: 6 pages
Proc. SPIE 5634, Advanced Sensor Systems and Applications II, (14 February 2005); doi: 10.1117/12.574467
Show Author Affiliations
Arunachalam Ponnusamy Kabilan, PSNA College of Engineering and Technology (India)
Marimuthu Paulvanna Nayaki, PSNA College of Engineering and Technology (India)
Sadagopan Sathiyanarayanan, Central Electrochemical Research Institute (India)


Published in SPIE Proceedings Vol. 5634:
Advanced Sensor Systems and Applications II
Yun-Jiang Rao; Osuk Y. Kwon; Gang-Ding Peng, Editor(s)

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