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Ring piezoelectric transducers radiating ultrasonic energy into the air

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3 Author(s)
Kielczynski, P.J. ; Inst. of Fundamental Technol. Res., Polish Acad. of Sci., Swietokrzyska, Poland ; Pajewski, W. ; Szalewski, M.

Ring piezoelectric transducers generating ultrasonic energy in air were designed and tested experimentally and numerically. The radiation pattern of the transducer is very narrow (4 degrees ) and its frequency response has a broadband character. Resonant frequencies of the transducers were determined experimentally and verified theoretically. Applications of the proposed ring transducers in a robotic ranging system were examined.<>

Published in:

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on  (Volume:37 ,  Issue: 1 )