JPS56137201A - Method for measuring amount of slippage of web - Google Patents
Method for measuring amount of slippage of webInfo
- 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
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
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) |
-
1980
- 1980-03-31 JP JP4140680A patent/JPS56137201A/en active Pending
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