发明名称 |
SHEET TOBACCO WEIGHT MEASUREMENT DEVICE, MEASUREMENT METHOD THEREOF, SHEET TOBACCO MANUFACTURING SYSTEM AND MANUFACTURING METHOD THEREOF |
摘要 |
A measuring apparatus for performing a basis weight measuring method for sheet tobacco according to the present invention includes: a light source (28) that emits light to sheet tobacco (ST) passing through a measurement position (P) on a transport path (18); and a visual sensor (30), the visual sensor (30) having a color camera (32) disposed with the transport path (18) put between the color camera (32) and the light source (28), a processing part (40) that transforms a color image of the sheet tobacco (ST) taken by the camera (32) into a grayscale image, and a conversion part (42) that converts an average gray level of the grayscale image into a basis weight of the sheet tobacco (ST) with reference to a conversion map which indicates a relationship between the average gray level of the grayscale image and an actual basis weight of sheet tobacco (ST). |
申请公布号 |
EP2881000(A4) |
申请公布日期 |
2016.04.27 |
申请号 |
EP20120882414 |
申请日期 |
2012.07.31 |
申请人 |
JAPAN TOBACCO INC. |
发明人 |
NAKAGAWA, SEIJI;TOKUDA, KAZUHIRO;NARAZAKI, KAORU;KAMISHIRAKI, TSUTOMU;TSUCHIYA, YASUSHIGE |
分类号 |
A24B3/14;G01N21/86 |
主分类号 |
A24B3/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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