Method of inspecting unevenness of partition surface of honeycomb structure and inspecting device

Method of inspecting unevenness of partition surface of honeycomb structure and inspecting device

  • CN 1,898,554 B
  • Filed: 10/28/2004
  • Issued: 01/02/2013
  • Est. Priority Date: 10/28/2003
  • Status: Active Grant
First Claim
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1. the concavo-convex inspection method on the barrier surface of a tubular honeycomb structure checks having the concavo-convex one by one said units ground on barrier surface of tubular honeycomb structure that is divided into a plurality of unit of fluid flowing path by barrier,Said method comprising the steps of:

  • Allow diffusion light by the end face side incident of the illuminace component of stipulating from above-mentioned honeycomb structure, behind the inside by said units, from another end face side outgoing of above-mentioned honeycomb structure,The translucent screen that the above-mentioned diffusion light transmission that allows outgoing sets in above-mentioned another end face side of above-mentioned honeycomb structure, as transmitted light,According to light and shade projection transmission picture on the face of the above-mentioned side of transmitted light of above-mentioned screen of above-mentioned transmitted light,Take the above-mentioned transmission picture of projection on the above-mentioned screen by taking parts,By the gray shade scale of the image that obtained by the analysis component analysis, said units ground checks the concavo-convex degree on surface of the barrier of above-mentioned honeycomb structure one by one.

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