Design of Non-contact Height Detecting System for a Marine Diesel Engine

Abstract

Air pressure is an important parameter for the air spring on a marine diesel engine. The pressure can be indirect reflected according to the spring camber, and the spring camber means the distance variation among the measuring points of air spring. So, in order to obtain the air pressure of marine diesel engine air spring, automatic non-contact height detecting system is designed based on single chip microcomputer and ultrasonic transducer. By using the proposed automatic detection system, the height of each measuring points of air spring can be obtained timely and accurately, and the air pressure keep in normal range is realizable.