期刊
WOOD MATERIAL SCIENCE & ENGINEERING
卷 6, 期 3, 页码 119-127出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/17480272.2010.543288
关键词
Durability; fac; ades; MRI; nuclear magnetic resonance; portable permanent magnet; sidings
资金
- Knut and Alice Wallenberg Foundation
- Swedish Research Council VR and Linnaeus University
This study evaluated the capability of nuclear magnetic resonance (NMR) technology based on small portable magnets for in situ studies of the local moisture content in wood. Low-field and low-resolution [1 H] NMR with a unilateral permanent magnet was used to monitor and map the moisture content of wood cladding materials of various types in a spatially resolved manner. The results show that portable NMR equipment based on small open-access permanent magnets can be successfully used for non-invasive monitoring of the moisture content in various extended wood specimens. The moisture content was measured with a depth resolution of 0.2 mm and a maximum penetration depth of 3 mm. This makes the technique suitable for in situ local moisture content measurements beneath a coating layer in the cladding, for example, and it is also possible to relate the moisture level to specific properties of the wood material.
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