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New Zealand Journal of Forestry (2002) 47(3): 19–21
©New Zealand Institute of Forestry

Research article
Wood quality measurement - son et lumiere.

M. Andrews

Rotorua, New Zealand: New Zealand Institute of Forestry.

This paper describes the acoustic measurement of wood quality. The use of sonic instruments to measure the speed of 'sound waves' along a sample, such as logs, and relate the speed to elastic modulus are presented in a simple mathematical expression.
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