Fiber-optic sensor to estimate surface roughness of corroded metals

Corresponding author: sasti@nitt.eduA fiber optic sensor system is developed to probe the surface texture of corroded metals.The present work is based on the principle of scattering of light by objects. A light beam froman LED source is focused onto the corroded surface. Specular and diffuse reflection of the surfaceis measured vertically at normal incidence of a fiber. The observed response agrees well withmechanical stylus measurements, with

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