Title :
Acoustic resonator transducer for operation in air
Author :
Fox, J.D. ; Khuri-Yakub, Butrus T. ; Kino, G.S.
Author_Institution :
Stanford University, Edward L. Ginzton Laboratory, W. W. Hansen Laboratories of Physics, Stanford, USA
Abstract :
An acoustic resonator and electronic system for operation in air are described. The transducer operates in a resonant mode and can be utilised to measure the distance between the transducer and a reflecting object. Experimental results are presented for a 275 kHz resonator transducer that can measure distances with better than 0.5 ¿m resolution at a 0.6 mm range. Applications to noncontacting surface profile measurements are also demonstrated.
Keywords :
distance measurement; ultrasonic measurement; ultrasonic transducers; 275 kHz resonator transducer; acoustic resonator transducer; distance measurement; electric system; noncontacting surface profile measurements; operation in air; resolution 0.5 micron; resonant mode; ultrasonics;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850491
