摘要
进一步给出高斯束展开法的推广。采用这一方法,计算了具有不同瓣数聚焦贝塞尔束的声场分布。结果表明:在某些情况下,聚焦贝塞尔声场中会出现两个焦点,而通常的聚焦声场一般只有一个焦点。
A further extension to the Gaussian-beam expansion is alternatively presented.By this expanded approach,the numerical re-sults are given for the sound pressure field radiated from the Bessel beam with a different number of main-and side-lobes,focused by an acoustic lens.It is shown that under certain circumstances,there are two focal points in the focused Bessel sound beam,not as a single focal point only in the fields radiated by other focused sources.
作者
高钰辰
丁德胜
GAO Yuchen;DING Desheng(School of Electronic Science and Engineering,Southeast University,Nanjing Jiangsu 210096,China;School of Integrated Circuits,Southeast University,Nanjing Jiangsu 210096,China)
出处
《电子器件》
CAS
北大核心
2023年第4期1163-1168,共6页
Chinese Journal of Electron Devices
关键词
聚焦贝塞尔声束
菲涅尔场积分
高斯束展开
声场分布
focused Bessel sound beam
Fresnel field integral
Gaussian-beam expansion
sound field
