Low Level of Kerosene Adulteration in Petrol Studied by Fiber Optics

A smallest amount of petrol adulterated with kerosene can cause adverse effect on the functioning of a vehicle engine. In this work, a simple, low cost, sensitive and miniature sensor based on fiber optic coupler and an optoelectronic detection system is developed. The sensor is modeled and simulated. It is found that the present sensor is capable of detecting less than 5 percent of kerosene adulteration in petrol. It is capable of detecting 1 percent variation in the adulteration. The sensor has micrometer dimension.