Accuracy and Functionality of Hand Held Wood Moisture Content Meters

摘要

The main task of VTT in the EU project was to test and improve the reliabilityand performance of wood moisture content meters. A total of 16 resistance type and 6 capacitance type hand-held moisture meters were included in the test series. Test samples of the most important European species (pine, spruce, birch, oak, beech, alder, larch) were obtained from all over Europe. Altogether a total of about 2,700 specimens were used to comparative testing. The specimens were conditioned to three different moisture content levels (8-10%, 12-14% and 16-18%). The moisture gradients of the test materials were low due to the extensive conditioning period of at least 1 year.