LENGTH MEASURING APPARATUS

PROBLEM TO BE SOLVED: To keep a measuring accuracy to always measure the feed length of a web at a high accuracy. SOLUTION: The length measuring apparatus having a rotatably pivoted length measuring roller 10 contacted to a continuously running work P to measure the feed length of the work P from it...

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Bibliographic Details
Main Authors USHIKUSA MASATO, CHINJU TAKUTETSU, NISHIDA MASASHI
Format Patent
LanguageEnglish
Published 22.03.2002
Edition7
Subjects
MEASURING
MEASURING ANGLES
MEASURING AREAS
MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS
PHYSICS
TESTING
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Summary:PROBLEM TO BE SOLVED: To keep a measuring accuracy to always measure the feed length of a web at a high accuracy. SOLUTION: The length measuring apparatus having a rotatably pivoted length measuring roller 10 contacted to a continuously running work P to measure the feed length of the work P from its revolution number, comprises a camera 22 for taking an image of the contact area of the measuring roller 10 and the work P to monitor it and an optical source 24 for taking a transmitted light image by the camera.
Bibliography:Application Number: JP20000274602