Determining moisture gradient profile using X-Ray technique

Abstract

Moisture gradients in wood are known to affect the internal stresses that could cause dimensional changes and defects. Severe deformation of finished products has the potential to damage a manufacturer’s reputation and significantly increase the cost of manufacturing. An innovative approach to nondestructively examine the moisture gradients of different wood species using vertical density profiles from a commercial X-ray based density profiler was described and illustrated. The results indicate that the estimated moisture gradients by the X-ray technique matched well with the actual moisture gradients. It is expected that the new method will provide accurate and prompt information about moisture transfer/movement that will help optimize manufacturing processes.

Citation

Cai, Zhiyong. 2007. Determining moisture gradient profile using X-Ray technique. Proceedings of 15th International Symposium on Nondestructive Testing of Wood, Sept. 10-13, 2007, Duluth, MN. [S.l. : s.n.], 2007.