【摘要】 我们在菲涅耳波带板的基础上,利用相位补偿法,设计、制作了一种象平板一样的会聚声透镜。这种透镜,焦点处之声强度比同一尺寸的波带板的声强度增加了三倍。更多还原

【Abstract】 Based on the Fresnel’s plate Zone, we have designed and constructed an acoustic focusing lens, which is like a plate, by way of phase compensation. Compared with the acoustic intensity of the plate zone at the focus, that of the lens we designed has increased 4 times when their apertures are the same.更多还原