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匹配层换能器在实用中往往由于辐射阻抗的变化破坏了“最佳”匹配层参量的选取[1]。本文从反映阻抗概念给出了必要的匹配层厚度修正[2],并以实例计算证明了修正公式的实用意义。
Matched-layer transducers in practice tend to undermine the choice of “best” matching layer parameters due to changes in radiation impedance [1]. In this paper, the necessary matching layer thickness correction [2] is given from the reflection of the concept of impedance, and the practical significance of the correction formula is proved by examples.