Parametric tranducer having an emitter film

Details Parametric tranducer having an emitter film Parametric tranducer having an emitter film

H - Electricity

04

R

H04R 3/00 (2006.01) H04R 25/00 (2006.01)

Patent

CA 2536390

A parametric transducer which includes a support member extending along an x- axis and a y-axis and having opposing front and back surfaces. The support member (102) includes an array of parallel ridges (108) extending along the x- axis and spaced apart along the y-axis at predetermined separation distances. The ridges have forward, film contacting faces (112) to support an emitter film (114) in a desired film configuration for emitting parametric output. An electrically sensitive and mechanically responsive (ESMR) film is disposed over the support member with one side of the ESMR film (114) being captured by the film contacting faces, and with arcuate sections aligned with and positioned between the parallel ridges. The film contacting faces mechanically isolate each of the arcuate sections (110) of ESMR film from adjacent arcuate sections.

L'invention concerne un transducteur paramétrique qui comporte un élément support s'étendant le long d'un axe x et d'un axe y et comportant des surfaces avant et arrière opposées. L'élément support (102) comprend un réseau d'arêtes parallèles (108) s'étendant le long de l'axe x et espacées les unes des autres le long de l'axe y à des distances de séparation prédéfinies. Les arêtes comportent des faces de contact avec le film, avant (112) afin de supporter le film émetteur (114) dans une configuration de film souhaitée en vue d'une sortie paramétrique d'émission. Un film à réaction mécanique et à sensibilité électrique ESMR est placé sur l'élément support avec un côté du film ESMR (114) étant capturé par les surfaces de contact avec le film, et des sections arquées alignées avec ces arêtes et positionnées entre celles-ci. Les surfaces de contact avec le film isolent mécaniquement chacune des sections arquées (110) du film ESMR des sections arquées adjacentes.

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