NON- DESTRUCTIVE METHOD FOR DETERMINING THE MOISTURE CONTENT IN A HYGROSCOPIC MATERIAL

摘要

Method and apparatus for the determination of moisture content in a hygroscopic material. Measurements of parameters such as the modulus of elasticity and the time of flight, are recorded on the material using two methods of measurement. The two methods are each affected differently by moisture content. The moisture content is derivable by taking a ratio of the measurements with a factor to account for the species or type of hygroscopic material. A non-destructive method for determining the absolute moisture content in wood,which provides measurements above the fibre saturation point, is described.