DocumentCode
1875144
Title
Sound focusing in liquid using a varifocal acoustic mirror
Author
Aoki, Ryo ; Nguyen Thanh-Vinh ; Noda, Kentaro ; Takahata, Tomoyuki ; Matsumoto, Kiyoshi ; Shimoyama, Isao
Author_Institution
Univ. of Tokyo, Tokyo, Japan
fYear
2015
fDate
18-22 Jan. 2015
Firstpage
925
Lastpage
927
Abstract
This paper reports a method to focus sound in liquid to a desired point using a PDMS-based varifocal acoustic mirror. We used PDMS-air boundary as a sound reflector to concentrate sound. By adjusting the curvature radius of the acoustic mirror, we could change the position where sound was concentrated. We confirmed that our method was able to improve the output of the acoustic sensor for different sound source positions.
Keywords
acoustic focusing; acoustic wave reflection; liquids; mirrors; PDMS-air boundary; PDMS-based varifocal acoustic mirror; acoustic sensor; liquid; sound focusing; sound reflector; sound source positions; Acoustic sensors; Acoustics; Convergence; Focusing; Mirrors; Sonar equipment; Transducers;
fLanguage
English
Publisher
ieee
Conference_Titel
Micro Electro Mechanical Systems (MEMS), 2015 28th IEEE International Conference on
Conference_Location
Estoril
Type
conf
DOI
10.1109/MEMSYS.2015.7051111
Filename
7051111
Link To Document