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>High-voltage photography: a new method for optical detection of moisture distribution in wood and wood-based panel products
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High-voltage photography: a new method for optical detection of moisture distribution in wood and wood-based panel products
This study is based on experiments in which the distri- bution of moisture in freshly wood, oven- dried wood and various wood-based panel products was observed at dif- ferent moisture contents. High-voltage photography was used to analyze cross sections of branches from Picea abies under different water conditions(60, 43, 19, 0/100), deter- mined gravimetrically by oven-drying at 103 deg.c after having taken the photographs. The voltage photographs show significant moisture differences between heartwood and sapwood which are usually not visible in trees with colourless heartwood
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