公开(公告)号：US4475394A

公开(公告)日：1984-10-09

申请号：US340718

申请日：1982-01-19

申请人： Hiroyuki Takeda ,  Kunio Kudo ,  Izumi Kobayashi ,  Yohsuke Ojiri ,  Mitsuyuki Oda ,  Sakae Sugiyama

发明人： Hiroyuki Takeda ,  Kunio Kudo ,  Izumi Kobayashi ,  Yohsuke Ojiri ,  Mitsuyuki Oda ,  Sakae Sugiyama

IPC分类号： G01N29/07 ,  G01N29/11 ,  G01N29/265 ,  G01N29/44 ,  G01N29/48 ,  G01N29/04

CPC分类号： G01N29/4445 ,  G01N29/07 ,  G01N29/11 ,  G01N29/265 ,  G01N29/343 ,  G01N29/48 ,  G01N2291/044

摘要： In ultrasonic flaw inspection for determining the size of a flaw by emitting an ultrasonic wave to a subject via a probe and receiving an ultrasonic echo from said flaw existing inside said subject, changes in the propagation distances of the ultrasonic echoes before and after movement of said probe through a micro-small distance are compared with each other and the ultrasonic echoes are determined to result from the same flaw if the change width falls within a predetermined value determined by the angle of incidence of the ultrasonic wave and the directional angle.

摘要翻译： 在超声波探伤中，通过经由探头向对象发射超声波，并从所述对象内存在的所述缺陷接收超声回波来确定缺陷的尺寸，所述超声回波的传播距离的变化在所述 如果变化宽度落在由超声波的入射角和方向角度确定的预定值内，则通过微小距离的探测被彼此比较，并且超声波回波被确定为由相同的缺陷引起的。