Patent ID: 8953738
Filing Date: 2015-02-10
Classification: B01D,G01N

Abstract:
1. A method of inspecting a honeycomb structure having a partition wall portion forming a plurality of passages opened in opposite end surfaces, and plugging portions closing any one end of each passage, the method comprising: a step of obtaining computer-tomography images of a first section at a distance Z a step of determining the existence/nonexistence of the plugging portion in at least one of the plurality of passages based on the computer-tomography image of the first section; a step of determining the existence/nonexistence of the plugging portion in the at least one passage based on the computer-tomography image of the second section; and a step of determining the length of the plugging portion based on the result of determination of the existence/nonexistence of the plugging portion based on the computer-tomography image of the first section and the result of determination of the existence/nonexistence of the plugging portion based on the computer-tomography image of the second section.