发明名称 |
Systems and methods for indicating the position of a web |
摘要 |
Methods and systems for indicating the displacement of a flexible web are described. An elongated, flexible web includes an integral scale having scale features configured to modulate energy directed towards the web. A transport mechanism provides relative movement between the web relative to a transducer. The transducer detects energy modulated by the scale features and generates a signal indicting a continuous web displacement based on the modulated energy. |
申请公布号 |
US8405831(B2) |
申请公布日期 |
2013.03.26 |
申请号 |
US20080664523 |
申请日期 |
2008.06.18 |
申请人 |
CARLSON DANIEL H.;EHNES DALE L.;WERTZ DANIEL S.;AGUIRRE LUIS A.;BIYIKLI LEVENT;CAMPBELL ALAN B.;3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
CARLSON DANIEL H.;EHNES DALE L.;WERTZ DANIEL S.;AGUIRRE LUIS A.;BIYIKLI LEVENT;CAMPBELL ALAN B. |
分类号 |
G01N21/86;G01B11/02;G01N21/55 |
主分类号 |
G01N21/86 |
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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