抄録
We developed the spark examination device consisting of a grinder, a motor and a camera and an ingredient analysis program using the image analysis. The spark examination device produces a spark on a constant condition by controlling grinders with a PC and photographs the spark. I extract the characteristic of each steel materials ingredient from the spark image which I photographed by image processing by the ingredient analysis program and distinguish steel materials ingredient. These device and analysis program allow the automation of the spark examination to need an expert technique and the quantitative evaluation of the steel materials ingredient.
