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Proceedings Paper

Active-control headset protector using piezoceramic material actuator
Author(s): Michel Brissaud; Paul Gonnard; Jean-Christophe Bera; Michel Sunyach
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Paper Abstract

This paper describes the achievement of active control headset protector using piezoceramic actuators leading to a noise attenuation of about 20 dB within a 1 kHz frequency span located at around 1 to 2 kHz. To this end, several types of piezoceramic transducers or actuators have been designed and tested. They are based on flexural modes of bimorphs constituted by a thin piezoelectric ceramic disk cemented on a metallic plate. The main problems encountered are the spurious frequency regenerations which mask the noise reduction in the expected frequency range. Thus only a few of them meet the above specifications and can be used for reducing the noise inside the headset protector.

Paper Details

Date Published: 26 April 1996
PDF: 5 pages
Proc. SPIE 2779, 3rd International Conference on Intelligent Materials and 3rd European Conference on Smart Structures and Materials, (26 April 1996); doi: 10.1117/12.237044
Show Author Affiliations
Michel Brissaud, Institut National des Sciences Appliquees de Lyon (France)
Paul Gonnard, Institut National des Sciences Appliquees de Lyon (France)
Jean-Christophe Bera, Ecole Centrale de Lyon/CNRS (France)
Michel Sunyach, Ecole Centrale de Lyon/CNRS (France)


Published in SPIE Proceedings Vol. 2779:
3rd International Conference on Intelligent Materials and 3rd European Conference on Smart Structures and Materials
Pierre Francois Gobin; Jacques Tatibouet, Editor(s)

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