WO2016066938 (A1) - ELECTROACOUSTIC TRANSDUCER, AND ASSOCIATED ASSEMBLY AND SYSTEM - Archive ouverte HAL Accéder directement au contenu
Brevet Année : 2016

WO2016066938 (A1) - ELECTROACOUSTIC TRANSDUCER, AND ASSOCIATED ASSEMBLY AND SYSTEM

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Résumé

The present invention concerns an acoustic transducer capable of converting a sound signal into an electric signal. The transducer comprises a mobile element that is movable under the effect of the sound signal, a fixed element opposite the mobile element, a recess (4), and a dissipative element (3) interposed between the mobile element and the fixed element. The coupled system formed in this way has a natural frequency corresponding to a resonance frequency of the transducer at which the sensitivity of same is at a maximum. The mobile element, the fixed element, the dissipative element and the recess are configured such that the quality factor of the acoustic transducer is greater than two. The recess (4) has a straight prismatic or cylindrical or frustoconical general shape, the mobile element forming a first base of the prism, cylinder or frustum, the fixed element being disposed inside said prism, cylinder or frustum, over the second base of the prism, cylinder or frustum. Such a transducer also incorporates an analogue filtering function for filtering the signal around the natural frequency of same.
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Dates et versions

hal-02474381 , version 1 (11-02-2020)

Identifiants

  • HAL Id : hal-02474381 , version 1

Citer

Stéphane Durand, Petr Honzík, Alexey Podkovskiy, Michel Bruneau, Nicolas Joly. WO2016066938 (A1) - ELECTROACOUSTIC TRANSDUCER, AND ASSOCIATED ASSEMBLY AND SYSTEM. France, Patent n° : WO2016066938 (A1). 2016. ⟨hal-02474381⟩
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