The effect of transformation of focused ultrasound radiation into collimated beams of longitudinal and transverse waves in the volume of a hemispherical transformer after refraction on its surface has been described. When the hemisphere is fastened on a studied plane–parallel object, the formed sharp beams of elastic waves incident normally on the surface of the sample make it possible to perform elastic measurements with minimum errors, which can be due to refractive aberrations of the focused beam.

中文翻译：

---

使用声波变压器技术测量固体中的局部弹性

已经描述了聚焦的超声辐射在其表面上折射之后在半球形变压器的体积中转换成纵向和横向准直光束的效果。当半球固定在研究的平面平行物体上时，形成的通常入射在样品表面上的弹性波的尖锐光束使执行弹性测量的误差最小，这可能是由于聚焦光束的折射像差所致。