随着检测要求不断提高,超声波检测设备正在不断地更新换代,目前已进入智能化领域。最初的超声波探伤仪是穿透式的,它只能发现工件内部是否存在缺陷,而不能确定缺陷的深度位置。而后又发展了脉冲反射式探伤仪,可进行缺陷定位及估计缺陷的大小。目前正在发展超声检测的定性定量,其中主要是超声显像,能显示并打印缺陷大小、形状和 With the continuous improvement of testing requirements, ultrasonic testing equipment is constantly upgrading, has now entered the field of intelligence. The original ultrasonic flaw detector is penetrating, it can only detect the existence of defects within the workpiece, but can not determine the depth of defects. And then developed a pulse reflection flaw detector, can locate the defect and estimate the size of the defect. Currently developing qualitative and quantitative ultrasonic testing, which is mainly ultrasound imaging, can display and print the size of defects, shape and