COMPOSITE MATERIAL VIBRATING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a composite material vibrating apparatus which can be supported in comparatively simple structure approximately without affecting vibration characteristics of a vibrating member and is easy to be small-sized. SOLUTION: The present apparatus comprises: a vibrating member which is made of a material having a first acoustic impedance value Z1and becomes a vibration source; a reflecting layer which is composed of a resin composition having a second acoustic impedance value Z2lower than the first acoustic impedance value Z1and containing at least an epoxy resin having cycloalkane and a curing agent and is linked to the vibrating member; and a holding member which is composed of a material having a third acoustic impedance value Z3greater than the second acoustic impedance value Z2and is linked to the side of the reflecting layer opposed to the side where the vibrating member is linked. The apparatus is configured to reflect vibration which is propagated from the vibrating member to the reflecting layer, on the interface between the reflecting layer and the holding member. COPYRIGHT: (C)2005,JPO&NCIPI