Abstract-Determination of Dielectric Function of Water in THz Region in Wood Cell Wall Result in an Accurate Prediction of Moisture Content

Han Wang, Tetsuya Inagaki, Ian D. Hartley,  Satoru Tsuchikawa, Matthew Reid

https://link.springer.com/article/10.1007/s10762-019-00594-0

This report follows up previous work that presented a model for the simultaneous detection of moisture content and density of wood using Terahertz time-domain spectroscopy. A significant improvement in the prediction accuracy of the model is demonstrated by including a moisture content-dependent dielectric function for the water within the wood samples. Justification for using the dielectric function is presented, the prediction accuracy is quantified, and the results compared with prior work.