Basis weight measuring apparatus and method for sheet tobacco, and manufacturing system and method for sheet tobacco
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United States of America Patent
Stats
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Aug 21, 2018
Grant Date -
May 21, 2015
app pub date -
Jan 28, 2015
filing date -
Jul 31, 2012
priority date (Note) -
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Abstract
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).
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- JAPAN TOBACCO INC.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kamishiraki, Tsutomu | Tokyo, JP | 1 | 0 |
Nakagawa, Seiji | Tokyo, JP | 26 | 302 |
Narazaki, Kaoru | Tokyo, JP | 1 | 0 |
Tokuda, Kazuhiro | Tokyo, JP | 11 | 129 |
Tsuchiya, Yasushige | Tokyo, JP | 1 | 0 |
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