T. Venkateswara Rao Seminar On Detection of Adulteration of Edible Oils Using Optical Fibers 1.Introduction The development of an intensity modulated fiber optic Evanescent Wave sensor for the detection of the amounts of adulteration of oils like pure ground nut oil and coconut oil is presented. Technology advancement has taken place in the recent years in the fabrication and use of optical fibers as a sensing element. Optical fiber sensors act as transducers that encode information, which describes non optical external perturbation onto an optical fiber. The INTENSITY based Optical fiber sensors are the most basic type of sensors which can be realized with ease. Groundnut oil in A.P, and Coconut oil in Kerala and the southern parts if Karnataka and Tamilnadu are widely used as edible oils. These oils very much prone to adulteration due to many reasons. The use of Optical fiber sensors for detection of contamination in the above oils is present work using optical fibers. The most com
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