Resonance Mode Acoustic Displacement Transducer

Abstract: Several linear displacement transducers are used in industry and many technical applications. In this research, a linear displacement transducer which uses a standing acoustic wave within a tube with variable length is designed, built and tested. A standard PC will be utilized for data processing and storage. The operation principle of this transducer is based measuring the resonance frequency of the created standing acoustic within tube. A relationship between the tube length and the measured frequency is determined. Besides to design and build of a measurement system for this transducer, three models of transducer prototype will be tested to study the effect of ambient temperature and diameter of the tube on resulting measured frequency.