JPS56137201A - Method for measuring amount of slippage of web - Google Patents

Method for measuring amount of slippage of web

Info

Publication number
JPS56137201A
JPS56137201A JP4140680A JP4140680A JPS56137201A JP S56137201 A JPS56137201 A JP S56137201A JP 4140680 A JP4140680 A JP 4140680A JP 4140680 A JP4140680 A JP 4140680A JP S56137201 A JPS56137201 A JP S56137201A
Authority
JP
Japan
Prior art keywords
web
slippage
tachogenerators
disc
measured
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4140680A
Other languages
Japanese (ja)
Inventor
Osamu Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP4140680A priority Critical patent/JPS56137201A/en
Publication of JPS56137201A publication Critical patent/JPS56137201A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable to measure the amount of slippage of a film and the like with sinple and rapid process and high accuracy by a method wherein travelling speeds of the web and a roller at the surfaces thereof are measured for comparison using two tachogenerators having discs with equal characteristics.
CONSTITUTION: Two direct current type tachogenerators 3, 3 with equal characteristics each having a disc 5, 5 of the same diameter are disposed in a line. One disc 5 is held against the surface of a transfer roller 1 being rotated, while the other disc 5 is held against the surface of a web 2 during travelling. Then produced difference between the outputs from both tachogenerators 3, 3 is measured by a voltmeter 4 or the like. By so doing, the amount of slippage of the web such as a film can be simply and rapidly measured with high accuracy without requiring fixing of the measuring device and preparation of jigs.
COPYRIGHT: (C)1981,JPO&Japio
JP4140680A 1980-03-31 1980-03-31 Method for measuring amount of slippage of web Pending JPS56137201A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4140680A JPS56137201A (en) 1980-03-31 1980-03-31 Method for measuring amount of slippage of web

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4140680A JPS56137201A (en) 1980-03-31 1980-03-31 Method for measuring amount of slippage of web

Publications (1)

Publication Number Publication Date
JPS56137201A true JPS56137201A (en) 1981-10-27

Family

ID=12607472

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4140680A Pending JPS56137201A (en) 1980-03-31 1980-03-31 Method for measuring amount of slippage of web

Country Status (1)

Country Link
JP (1) JPS56137201A (en)

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