A light sensitive actuator-based smart polymer loudspeaker array
Journal
2014 Joint IEEE International Symposium on the Applications of Ferroelectric, International Workshop on Acoustic Transduction Materials and Devices and Workshop on Piezoresponse Force Microscopy, ISAF/IWATMD/PFM 2014
Date Issued
2014
Author(s)
Lai, P.-C.
Abstract
A newly developed light sensitive, actuator-based, smart polymer loudspeaker is presented. The advantages of this polymer loudspeaker include being lightweight and having the flexibility to be cut into any arbitrary shape or surface to create a versatile audio system for the home or car. This light-sensitive, actuator smart polymer is created using a piezoelectric polymer as the substrate and TiOPc (Titanyl phthalocyanine y-modification) as an additive. The relationship between acoustic impedance, stiffness, and light-sensitive dyes were measured. The effects of light-sensitive dyes on acoustic impedance were measured for decreasing output of sound waves. The influence of acoustic performance on illumination pattern as a modulated distributed force field is examined in detail. The displacement and the acoustic fields produced by the light-sensitive smart polymer actuator were simulated using a finite element method (FEM). The possibilities to further improve the performance of our newly developed micro speaker by adopting psychoacoustics are detailed.
SDGs
Type
conference paper