Title :
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
fDate :
6/1/2009 12:00:00 AM
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;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2009.1171
