| 摘要 |
PURPOSE:To perform the safe, speedy, and easy inspection and measurement of respective points of a seaming part which are enough to obtain a reliable inspection result by using X-ray transmission information on the section of the seaming part. CONSTITUTION:An X-ray is projected on the seaming part 4 of a can 1 in its tangential direction and the X-ray which is transmitted through the seaming part 4 is inputted to an X-ray camera 11 as X-ray fluoroscopic information on the section of the seam parting 4. The camera 11 converts the input X-ray fluoroscopic information into an electric signal and outputs it to an image processor 12. The image processor 12 emphasizes a part having contrast larger than a constant reference to extract an image of the regular section 4a of the seaming part 4. The extracted sectional image of the seam parting 4 is displayed on a display 13. Consequently, an inspector inspects the sectional shape of the can seaming part 4 visually according to the sectional image on the display 13.
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