Patent ID: 9058798
Filing Date: 2015-06-16
Classification: G10K

Abstract:
1. A tunable polymer-based sonic structure comprising: a sonic structure engineered to be capable of passively affecting the propagation of sound waves; a polymer having acousto-elastic properties capable of manipulation through external stimuli, wherein the polymer is in contact with the sonic structure such that the polymer is capable of affecting the propagation of sound waves through the sonic structure; and a source of external stimuli for manipulation of the acousto-elastic properties of the polymer, wherein the sonic structure comprises a plurality of metal rods having stabilizing ends, wherein the polymer comprises poly (n-isopropylacrylamide) polymer hydrogel, wherein the polymer surrounds the plurality of metal rods and is contained within the stabilizing ends of the sonic structure, wherein the source of external stimuli is water having a variable temperature, and wherein the tunable polymer-based sonic structure is a temperature sensitive acoustic filter.