发明名称 |
Web tension measuring method and device |
摘要 |
Web tension measurement in that the web (5) is caused to oscillate transversely with the resonance frequency for the portion of the web (5) defined by a support (2,2a). The oscillations are measured by detectors (6,7) for determining the web tension. The measuring is carried out free of contact in that a thin air layer is maintained between the support (2,2a) and web (5).
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申请公布号 |
US4655093(A) |
申请公布日期 |
1987.04.07 |
申请号 |
US19850755459 |
申请日期 |
1985.07.16 |
申请人 |
SVENSKA TRAFORSKNINGSINSTITUTET |
发明人 |
STROEM, VALTER E.;JOHANSSON, BO-LENNART I.;KARLSSON, HAKAN I.;OESTMAN, THOMAS |
分类号 |
B65H23/04;G01L5/04;(IPC1-7):G01L5/04;G01H13/00 |
主分类号 |
B65H23/04 |
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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