Automatic flaw detection device

摘要

An automatic flaw detection apparatus comprises a supporting frame; a hollow shaft which is supported on said frame in a freely rotatable manner through a bearing, and through the interior of which passes a material to be inspected; a holder disposed within said hollow shaft, and extending in the longitudinal direction of the axis of said hollow shaft, and rotating in association with said hollow shaft; sensing means incorporated in said holder to detect any defect in said material to be probed; and a signal transmission device interposed between said hollow shaft and said supporting frame, and to transmit the flaw detection signal from said sensor means to outside.