Acoustic element and method for sound processing

Details Acoustic element and method for sound processing Acoustic element and method for sound processing

H - Electricity

04

R

H04R 19/00 (2006.01) H04R 3/00 (2006.01) H04R 19/02 (2006.01)

Patent

CA 2247278

The invention relates to an acoustic element and method for sound processing. The acoustic element (1) is made of a porous stator plate (2) which is either electrically conductive or plated on at least one of its surfaces to be conductive. A moving diaphragm (3, 3a, 3b) has been attached to the stator plate (2). To measure as well as produce sound pressure and particle velocity, the equipment comprises two pairs of aforementioned acoustic elements (1). Elements serving as sensors control elements serving as actuators to attenuate and absorb sound.

L'invention concerne un élément acoustique et un procédé de traitement des sons. L'élément acoustique (1) est constitué d'une tôle statorique poreuse (2) qui est conductrice d'électricité ou qui porte un revêtement, sur au moins une de ses surfaces, pour la rendre conductrice. Une membrane mobile (3, 3a, 3b) est fixée à la tôle statorique fixe (2). Pour produire et pour mesurer une pression acoustique et une vitesse particulaire, l'équipement comprend deux paires des éléments acoustiques susmentionnés (1). Des éléments servant de détecteurs commandent des éléments d'actionnement pour atténuer et absorber les sons.

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