Properties of thin bilaminar disks of a piezoceramic material are discussed. The acousto-electrical transducer properties can be simply described in terms of the resonance frequency and the coupling constant of the ceramic disk. For example, the sensitivity when used in a microphone does not vary with the disk diameter, provided the resonance frequency remains the same. On that account the making of thinner disks permits of the construction of smaller microphones.

Authors: Roos, J.; Koorneef, J.
Affiliation: Philips' Research Laboratories, N. V. Philips' Gloeilampenfabrieken, Eindhoven, The Netherlands
AES Convention: 35 (October 1968) Paper Number: 589
Publication Date: October 1, 1968 Import into BibTeX
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=1423

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