| 1. | In the method , two transducers were deposited by the two opposite sides of the test member in experiment . based on the attenuation of energy received after the pulse wave penetrates through the test surface , the interior faults can be detected 超声透射法通常采用两个换能器,分别布置在试件两侧,依据脉冲波穿透试件后的能量的变化来判断内部缺陷。 |