학술논문

Prediction of Veneer Moisture Content Based on Near Infrared Spectroscopy
Document Type
article
Source
BioResources, Vol 17, Iss 4, Pp 5878-5889 (2024)
Subject
moisture content
near infrared spectroscopy
algorithm
physical properties
Biotechnology
TP248.13-248.65
Language
English
ISSN
1930-2126
Abstract
The physical properties of wood, particularly the dimensional stability, are affected by the water content. Most wood properties can be detected by near infrared spectroscopy (NIRS), which is used as a nondestructive testing method. At different wavelengths, different absorption peaks are presented with the moisture absorbed by wood. According to this feature, the absorption peaks can be collected, and the data can be processed by partial least squares method combined with NIRS. In this study, softwood oak and hardwood ash tree specimens were studied. In the infrared spectrum range, the wood moisture absorption curve was noticeable and the curve trend was similar, although the tree species were different. After centralization, standardization, and derivative processing of the spectral data, the correlation coefficients of oak and ash tree validations were high, reaching 0.9021 and 0.9661, respectively. The wood moisture content was predicted using NIRS and an algorithm. The experiments showed that this method is feasible.