DocumentCode :
119174
Title :
A light sensitive actuator-based smart polymer loudspeaker array
Author :
Po-Cheng Lai ; Chih-Kung Lee
Author_Institution :
Inst. of Appl. Mech., Nat. Taiwan Univ., Taipei, Taiwan
fYear :
2014
fDate :
12-16 May 2014
Firstpage :
1
Lastpage :
4
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.
Keywords :
dyes; finite element analysis; loudspeakers; optical materials; photographic materials; polymers; FEM; TiOPc; acoustic fields; acoustic impedance; acoustic performance; additive; finite element method; illumination pattern; light sensitive actuator-based smart polymer loudspeaker array; light-sensitive dyes; light-sensitive smart polymer actuator; modulated distributed force field; piezoelectric polymer; psychoacoustics; sound waves; titanyl phthalocyanine y-modification; versatile audio system; Acoustics; Actuators; Arrays; Lighting; Loudspeakers; Polymers; acoustic fields; light-sensitive polymer actuator; loudspeaker array;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applications of Ferroelectrics, International Workshop on Acoustic Transduction Materials and Devices & Workshop on Piezoresponse Force Microscopy (ISAF/IWATMD/PFM), 2014 Joint IEEE International Symposium on the
Conference_Location :
State College, PA
Type :
conf
DOI :
10.1109/ISAF.2014.6922991
Filename :
6922991
Link To Document :
بازگشت