Detection/ estimation of adulteration in gasoline and diesel using ultrasonics

The exhaust gases from fast increasing number of automobiles is a major source of urban air pollution in third world countries. Adulteration of gasoline and diesel further aggravates the problem. For the prevention of adulteration, monitoring of fuel quality at the distribution point, therefore, is essential. In this paper the feasibility of detection/estimation of adulteration in gasoline and diesel using ultrasonic radiations has been proposed. The speed of ultrasound in non-adulterated and intentionally adulterated gasoline and diesel has been determined using pulse echo method. It has been observed that adulteration results in the change in the measured speed of ultrasound which can be calibrated in terms of percentage adulteration.