The investigation of localized sound generation using two ultrasound beams

Author

Peifeng Ji ; Jun Yang ; Woon-Seng Gan

Author_Institution

State Key Lab. of Acoust., Chinese Acad. of Sci., Beijing

Volume

56

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

1282

Lastpage

1287

Abstract

A quantitative analysis of the effects of difference frequency, source separation, and crossing angle on the generated scattered difference frequency sound fields is presented to evaluate the feasibility of localized sound production using 2 uniform pistons. Nonlinear crossed beam experiments were also carried out in an anechoic chamber. Experimental results show that the audible sound could be generated within the interaction region defined by the overlap volume of 2 ultrasonic beams.

Keywords

acoustic wave scattering; anechoic chambers (acoustic); nonlinear acoustics; ultrasonics; anechoic chamber; audible sound; crossing angle; localized sound generation; quantitative analysis; scattered difference frequency sound field; source separation; ultrasound beams; Acoustic scattering; Anechoic chambers; Frequency; Pistons; Production; Source separation; Ultrasonic imaging; Computer-Aided Design; Equipment Design; Equipment Failure Analysis; Reproducibility of Results; Scattering, Radiation; Sensitivity and Specificity; Sound; Transducers; Ultrasonography;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/TUFFC.2009.1171

Filename

5075112