折射球面波场的计算方法及其对斜探头的应用

Calculation of Spherical Wave Refraction and its Application to Angle Probes

在射线近似下，可以利用平面波在平面界面上的透过率及位相偏差计算折射球面波声压，推导出折射球面波场的计算公式．该公式可以用于计算斜探头的声压分布及声场的指向性。

The expression for the amplitude of the spherical wave from the boundary of two different medium is derived on the assumption of ray approximation, which is applied in numerical caculation of the acoustic pressure and the directivity of an angle probe. Finaly, application of this numerical method is suggested for the desgin of angle probes.