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Speckle correlation used for measuring microstructural changes in paper
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Fluid and Experimental Mechanics.ORCID iD: 0000-0003-4879-8261
Luleå tekniska universitet.
2003 (English)In: Speckle metrology 2003: proceedings ; 18 - 20 June 2003, Trondheim, Norway / [ed] Kay Gastinger, Bellingham, Wash: SPIE - International Society for Optical Engineering, 2003, p. 33-38Conference paper, Published paper (Refereed)
Abstract [en]

In this paper the use of laser speckle correlation as a mean to measure the micro-structural changes in paper exposed to a changing environment will be presented. Of particular interest will be changes in humidity and crack propagation. Speckle correlation is a technique that calculates the local structural change in a speckle pattern as the object deforms in real time. The response of the technique is the local rate of micro-structural change in the material. Speckle correlation is hence a complement to other speckle metrology techniques. The paper starts with a short introduction to speckle correlation but will focus on applications of the technique on paper. Results from studies of wetting of printing paper at the flock scale, dynamic response in copy paper when exposed to a sudden change in humidity and crack propagation in a notched sheet of Kraftliner are included.

Place, publisher, year, edition, pages
Bellingham, Wash: SPIE - International Society for Optical Engineering, 2003. p. 33-38
Series
Proceedings of the Society of Photo-Optical Instrumentation Engineers ; 4933
National Category
Applied Mechanics
Research subject
Experimental Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-39557DOI: 10.1117/12.516572ISI: 000184179200006Scopus ID: 2-s2.0-19244381377Local ID: e5f070e0-2bc3-11dd-8657-000ea68e967bISBN: 0-8194-4728-5 (print)OAI: oai:DiVA.org:ltu-39557DiVA, id: diva2:1013071
Conference
Speckle Metrology Conference : 18/06/2003 - 20/06/2003
Note
Godkänd; 2003; 20080527 (cira)Available from: 2016-10-03 Created: 2016-10-03 Last updated: 2018-07-10Bibliographically approved

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Sjödahl, Mikael

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  • apa
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