HOLE INSIDE INSPECTION DEVICE, AND HOLE INSIDE INSPECTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a hole inside inspection device that inspects an inside of a hole.;SOLUTION: A hole inside inspection device 100 comprises: a camera that is provided outward a hole 20 at a position away from an opening part of the hole 20 by a prescribed distance, and photographs a first photograph image having an image of an inner peripheral surface reflected by an inner peripheral surface-purpose mirror revolving around an optical axis photographed, and a second photograph image having an image of a tapering surface reflected by a tapering surface-purpose mirror revolving around the optical axis photographed; a photograph image acquisition unit 30 that acquires the first photograph image and the second photograph image; a consolidation image generation unit 31 that generates a consolidation image consolidating the first photograph image and the second photograph image acquired by the photograph image acquisition unit 30, having positions in a mutual peripheral direction of the first photograph image and the second photograph image aligned; and a determination unit 32 that determines presence or absence of a detection object composed of at least one of a blowhole and damage appearing in the inner peripheral surface or the tapering surface on the basis of the consolidation image.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2019,JPO&INPIT