Feasibility study of active IRT for the estimation of moisture content of wood

In this paper, an experimental study to investigate the relationship between infrared reflection and moisture content of wood is presented by using an active infrared technique developed for non-contact measurement of moisture content (MC). The moisture content of wood used in heritage structures like ancient temples is important for the preservation and restoration of cultural assets in terms of safety and cultural study. Active infrared inspection system that detects near-infrared (NIR) through semiconductor photodiode using Labview program has been developed to measure the radiance of infrared from wood surface subject to thermal wave heating by halogen lamp. The change of near infrared radiance of wood samples composed of domestic pine was identified and linearly related to the moisture content of wood