Theoretical study on the characteristics of sound field radiated by a Gaussian rectangular transducer

Xue-ping Jiang; Hao-bo Han; Jing Jia; Liang Zhang; Yun-fei Yue

doi:10.1117/12.2580266

5 November 2020 Theoretical study on the characteristics of sound field radiated by a Gaussian rectangular transducer

Xue-ping Jiang, Hao-bo Han, Jing Jia, Liang Zhang, Yun-fei Yue

Proceedings Volume 11568, AOPC 2020: Optics Ultra Precision Manufacturing and Testing; 115681U (2020) https://doi.org/10.1117/12.2580266
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China

Abstract

Generally, the surface vibration velocity amplitude of a conventional rectangular acoustic probe is the same. Because of strong interference, the radiated sound field in the near-field is extremely uneven, and radiation side lobes appears in the far field, which are not conducive to its application in ultrasonic technology. A rectangular acoustic transducer with Gaussian vibration velocity distribution on the acoustic radiation surface can reduce or avoid the near field of extreme inhomogeneity and far-field side-lobe. So it can be used in medical ultrasound diagnosis and industrial nondestructive testing and can obtain better effect. In this paper, the radiated sound field of a rectangular transducer with Gaussian distribution of surface vibration velocity is calculated, theoretically. The medium is isotropic without attenuation. The center of the rectangular transducer is assigned as the origin of coordinates. And the plane of the surface is as XOY surface. Then the coordinate system is established. Using Rayleigh integral method, the calculation of the radiation sound field is carried out. Discussion of the acoustic field distribution including on the beam axis and the far field is carried out. It is found that the sound field distribution on the beam axis is closely related to the parameters of the transducer surface. The oscillation of the sound pressure on the beam axis can be avoided by adjusting the parameters. There is no side lobe in the far field. The study of this paper can provide a theoretical suggestion for the application of Gaussian rectangular transducer.

Citation Download Citation

Xue-ping Jiang, Hao-bo Han, Jing Jia, Liang Zhang, and Yun-fei Yue "Theoretical study on the characteristics of sound field radiated by a Gaussian rectangular transducer", Proc. SPIE 11568, AOPC 2020: Optics Ultra Precision Manufacturing and Testing, 115681U (5 November 2020); https://doi.org/10.1117/12.2580266

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Transducers

Near field

Acoustics

Ultrasonics

Optics manufacturing

Safety equipment

Near field optics

Show All Keywords

Keywords/Phrases

Search In:

Publication Years