Systems and methods for indicating the position of a web
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01N-021/86
G01N-021/55
G01B-011/02
출원번호
US-0664523
(2008-06-18)
등록번호
US-8405831
(2013-03-26)
국제출원번호
PCT/US2008/067375
(2008-06-18)
§371/§102 date
20091214
(20091214)
국제공개번호
WO2008/157623
(2008-12-24)
발명자
/ 주소
Carlson, Daniel H.
Ehnes, Dale L.
Wertz, Daniel S.
Aguirre, Luis A.
Biyikli, Levent
Campbell, Alan B.
출원인 / 주소
3M Innovative Properties Company
대리인 / 주소
Skolnick, Steven E.
인용정보
피인용 횟수 :
7인용 특허 :
37
초록▼
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 tran
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.
대표청구항▼
1. A method for indicating web displacement, comprising: moving an elongated, flexible web having a plurality of discrete scale features disposed thereon and wherein the plurality of discrete scale features comprise optical prisms configured to reflect light via total internal reflection;modulating
1. A method for indicating web displacement, comprising: moving an elongated, flexible web having a plurality of discrete scale features disposed thereon and wherein the plurality of discrete scale features comprise optical prisms configured to reflect light via total internal reflection;modulating light using the plurality of discrete scale features;converting the modulated light into a signal that provides indication of continuous web displacement using a web position processor. 2. The method of claim 1, further comprising determining a position of the web based on the signal. 3. The method of claim 1, wherein: the web comprises a transparent web;modulating the light comprises transmitting a portion of the light through the transparent web; andfurther comprising determining the displacement of the web based on the transmitted light. 4. The method of claim 1, wherein: modulating the light comprises reflecting a portion of the light; andfurther comprising determining the displacement of the web based on the reflected light. 5. The method of claim 1, wherein: the web comprises a transparent web; andmodulating the light comprises: reflecting a portion of the light using the optical scale features; andtransmitting a portion of the light through the web. 6. The method of claim 1, wherein modulating the light further comprises modulating the light using one or more reticles. 7. The method of claim 1, wherein the web comprises a transparent polymer. 8. The method of claim 1, wherein a bend radius of the web is less than about 100 mm. 9. The method of claim 1, wherein determining the displacement of the web comprises determining longitudinal displacement. 10. The method of claim 1, wherein determining the displacement of the web comprises determining lateral displacement. 11. The method of claim 1, wherein determining the displacement of the web comprises determining angular rotation. 12. The method of claim 1, wherein: determining the displacement of the web comprises measuring web deformation; andfurther comprising determining temperature based on the web deformation. 13. The method of claim 1, wherein: determining the displacement of the web comprises measuring web deformation; andfurther comprising determining web strain based on the web deformation. 14. The method of claim 1, wherein: determining the displacement of the web comprises measuring web deformation; andfurther comprising determining a modulus of elasticity of the web based on the web deformation. 15. A system for indicating web displacement, comprising: an elongated, flexible web having an integral scale disposed thereon, the scale comprising a plurality of discrete scale features comprising optical prisms configured to reflect light via total internal reflection and configured to modulate light directed towards the web;a transducer configured to sense the light modulated by the plurality of discrete scale features and to generate a signal indicating continuous web displacement based on the modulated light; anda transport mechanism configured to provide relative movement between the web and the transducer. 16. The system of claim 15, further comprising a web position processor configured to determine a position of the web based on the signal. 17. The system of claim 15, wherein the elongated, flexible web comprises a transparent web. 18. The system of claim 15, wherein the elongated, flexible web comprises polymer, paper, woven or non-woven materials. 19. The system of claim 15, wherein: the web comprises a moving web; andfurther comprising one or more reticles configured to further modulate the light. 20. The system of claim 15, wherein: the scale is configured to modulate the light by transmitting a portion of the light; andthe transducer is configured to detect the transmitted light and to generate the signal based on the transmitted light. 21. The system of claim 15, wherein: the scale is configured to modulate the light by reflecting a portion of the light; andthe transducer is configured to detect the reflected light and to generate the signal based on the reflected light. 22. The system of claim 15, wherein the web has web pattern features disposed thereon. 23. The system of claim 15, wherein a bend radius of the web is less than about 100 mm. 24. The system of claim 15, wherein the displacement comprises a longitudinal displacement of the web. 25. The system of claim 15, wherein the displacement comprises a lateral displacement. 26. The system of claim 15, wherein the displacement comprises an angular rotation of the web. 27. An apparatus comprising a flexible, elongated web having an integral scale, the scale comprising a pattern of scale features disposed on the web, the scale features comprising optical prisms configured to reflect light via the total internal reflection and the scale features modulating light directed toward the web, the modulated light indicative of a continuous displacement of the web. 28. The apparatus of claim 27, further comprising a pattern of web features disposed on the web. 29. The apparatus of claim 27, wherein the bend radius of the web is less than about 100 mm.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (37)
Chiu Chinchuan ; Chek Wing Loon,SGX ; Paolella Philip, Adaptive lighting control apparatus for illuminating a variable-speed web for inspection.
Nagel Erich (Anzing DEX) Ziegler Franz (Munich DEX) Schaner Ferdinand (Munich DEX), Apparatus for breaking weakened portions of running webs or the like.
Hank Dietrich (Leipzig DL) Lipfert Gerhard (Leipzig DL) Niesgoda Tassilo (Leipzig DL), Automatic regulation of the position of the lateral edge of a travelling web.
Takayama,Hideyuki; Kudo,Koichi, Endless-moving-member driving unit, image forming apparatus, photosensitive-element driving unit, and method of degradation process for endless moving-member.
Pricone Robert M. (Vernon Hills IL) Roberts William N. (Niles IL) Zanotti Richard (Hoffman Estates IL), Retroreflective sheeting and methods for making same.
Stensvad, Karl K.; O'Hare, Jonathan J.; Campbell, Christopher J.; Carlson, Daniel H.; Jerry, Glen A., Discrete coating of liquid on a liquid-coated substrate and use in forming laminates.
Izumiya, Takafumi; Kida, Shinzo; Towatari, Keisuke; Fukaya, Masaaki, Machine and method of manufacturing low ignition propensity paper by maintaining shrinkage rate of dried web within allowable range.
O'Hare, Jonathan J.; Stensvad, Karl K.; Campbell, Christopher J.; Carlson, Daniel H.; Jerry, Glen A., Precision coating of viscous liquids and use in forming laminates.
Hofeldt, David L.; Brott, Robert L.; Carlson, Daniel H.; Dobbs, James N.; Jaworski, Andrzej P.; Jerry, Glen A.; Strand, John T.; Sykora, Michael J.; Stensvad, Karl K., Precision control of web material having micro-replicated lens array.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.