基于菲涅耳波带片的聚焦声透镜
College Physics(2018)
Abstract
以光学菲涅耳波带片原理为基础,通过理论改进,使其适用于声波聚焦,并以此理论为基础制作了实用超声波聚焦声透镜.其设计加工方法简单,成本较低,适用频率范围广泛,声压放大效果明显,理论计算结果与实验测量结果高度吻合,作为一种超声器件,在诸多超声领域具有可观的应用前景.
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