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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >An ultrasonic Gaussian transducer and its diffraction field: theory and practice
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An ultrasonic Gaussian transducer and its diffraction field: theory and practice

机译：超声高斯换能器及其衍射场：理论与实践

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摘要

In this paper, the authors present a novel way to describe the diffraction field for a Gaussian source, which becomes a Gaussian itself. It is described by the Rayleigh surface integral based on the Huygens' theorem. The derivation does not require the parabolic approximation used by previous authors. An improved spherical button Gaussian transducer design also is presented to verify the theory. A theoretical principle of this design based on electromagnetic theory is developed. Both megahertz and kilohertz experimental results show that the sound fields generated by Gaussian transducers of this design agree very well with the theoretical predictions.
机译：在本文中，作者提出了一种新颖的方式来描述高斯源的衍射场，该高斯源本身就是高斯。它由基于惠更斯定理的瑞利曲面积分描述。该推导不需要先前作者使用的抛物线近似。还提出了一种改进的球形按钮高斯换能器设计，以验证该理论。提出了基于电磁学原理的设计原理。兆赫和千赫实验结果均表明，这种设计的高斯换能器产生的声场与理论预测非常吻合。

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