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| HAL : hal-00436594, version 1 |
| Fiche détaillée |  Récupérer au format |
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| archives of acoustics 34, 4 (2009) 591-599 |
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| An Ironless Large Displacement Flat Piston Loudspeaker |
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| Mathias Remy 1Guy Lemarquand 1 |
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| (01/12/2009) |
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| This paper presents a small wide-band loudspeaker. Particular efforts have been made to reduce the nonlinearities of the loudspeaker as much as possible. The motor structure is completely ironless, the elastomer suspensions are replaced by ferrofluid seals and a monobloc carbon foam piston substitutes the traditional conic membrane. The circular radiating surface, which is flat, has a diameter equal to only 2 cm. Therefore, in order to obtain a sufficient sound pressure level at low frequencies, large displacements of the piston are necessary. After a detailed description of each part of the loudspeaker, theoretical results of the expected performances of this transducer are given. |
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| 1 : | Laboratoire d'acoustique de l'université du Maine (LAUM) |
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CNRS : UMR6613 – Université du Maine |
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| 2 : | RENAULT SAS |
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RENAULT |
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| Domaine | : | Sciences de l'ingénieur/Electromagnétisme Sciences de l'ingénieur/Acoustique Physique/Mécanique/Acoustique |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00436594, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00436594 | |
| oai:hal.archives-ouvertes.fr:hal-00436594 | |
| Contributeur : Guy Lemarquand | |
| Soumis le : Vendredi 27 Novembre 2009, 10:33:13 | |
| Dernière modification le : Vendredi 4 Décembre 2009, 15:22:21 | |
