| 摘要 |
<P>PROBLEM TO BE SOLVED: To measure the amount of projection of abrasive particles of a grinding tool with a high precision in a short time. <P>SOLUTION: The abrasive plane of a whetstone 10 is imaged at a measuring object position on the whetstone 10, by changing the focusing position of a microscope 40 with a camera stepwise in the direction perpendicular to the abrasive plane. Image data acquired by this are compared with a fundamental image pattern VA corresponding to the tip portions of the abrasive particles 20, and the fundamental image pattern VC corresponding to the bottom portions of the abrasive particles 20 which have been stored in advance, and image data which most closely approximate the image patterns VA, VC are extracted, and from the difference between the positions of focuses set when these extracted image data are qcquired, the amount of projection of the grinding particles 20 is calculated. <P>COPYRIGHT: (C)2004,JPO |
