METHOD FOR INSPECTING HONEYCOMB STRUCTURE, METHOD FOR MANUFACTURING HONEYCOMBED-STRUCTURED BODY, AND DEVICE FOR INSPECTING HONEYCOMB STRUCTURE

摘要

A method for inspecting columnar honeycomb structures comprises: a step for inspecting the side of a honeycomb structure using a camera while irradiating light from a light source on the side of the honeycomb structure from a light source from a first angle; and a step for inspecting the side of the honeycomb structure using the camera while irradiating light from the light source from a second angle, which differs to the first angle, on the side of the honeycomb structure. The ease of measuring defects such as cracks, dents and chips that have occurred in the side of the honeycomb structure varies significantly according to the irradiation angle of the light relative to the side of the honeycomb structure. Honeycomb structures can thus be inspected with greater precision.