Title :
Design and implementation of a microcontroller based opto electronic instrument for estimation of corrosion in metals
Author :
Nayaki, M. Paulvanna ; Kabilan, A.P. ; Satyanarayanan, S.
Author_Institution :
Dept. of Electron. & Commun. Eng., PSNA, Dindigul, India
Abstract :
The present work reports the design and development of a microcontroller based optoelectronic instrument for estimating the degree of corrosion of metal surfaces by measuring the changes in surface texture. A light beam from an LED source is focused onto the corroded surface. The reflected and scattered light intensities are measured individually and the corrosion factor involving the ratio between the two values is computed and displayed on the LCD by employing a PIC microcontroller. Optical response of the metal surface is found to be a consistent measure of the degree of corrosion of the metals.
Keywords :
corrosion; integrated optics; light emitting diodes; light reflection; light scattering; liquid crystal displays; micro-optics; microcontrollers; optical design techniques; surface texture; LED source; PIC microcontroller; corroded surface; corrosion estimation; corrosion factor; metal surfaces; optoelectronic instrument; photonic integrated circuit; reflected light intensity; scattered light intensity; surface texture; Corrosion; Electrical resistance measurement; Electromagnetic scattering; Instruments; Light scattering; Microcontrollers; Optical scattering; Optical surface waves; Rough surfaces; Surface texture;
Conference_Titel :
Lightwave Technologies in Instrumentation and Measurement Conference, 2004. Proceedings of the
Print_ISBN :
0-7803-8722-8
DOI :
10.1109/LTIMC.2004.1370992
