2015
DOI: 10.1016/j.phpro.2015.08.205
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Low Voltage MEMS Digital Loudspeaker Array Based on Thin-film PZT Actuators

Abstract: This paper reports on the development of a Digital Loudspeaker Array (DLA) solution based on Pb(Zr 0.52 ,Ti 0.48 )O 3 (PZT) thinfilm actuated membranes. These membranes called speaklets are arranged in a matrix and operate in a binary manner by emitting short pulses of sound pressure. Using the principle of additivity of pressures in the air, it is possible to reconstruct audible sounds. For the first time, electromechanical and acoustic characterizations are reported on a 256-MEMS-membranes DLA. Sounds audibl… Show more

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Cited by 4 publications
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