Systems and methods for predicting the bending stiffness of...

Details Systems and methods for predicting the bending stiffness of... Systems and methods for predicting the bending stiffness of...

G - Physics

01

N

G01N 29/07 (2006.01) G01N 3/32 (2006.01) G01N 9/24 (2006.01) G01N 23/06 (2006.01) G01N 29/34 (2006.01) G01N 33/46 (2006.01)

Patent

CA 2483351

Generally described, a bending stiffness predicting system 20 includes a density measurement sub-system 24 and a sound wave velocity measurement sub-system 28. From the measurements of both density and speed of sound through the wood product received from the sub-systems 24 and 28, respectively, the bending stiffness (Y) may be predicted by calculating the bending stiffness (Y) according to the bending stiffness (MOE) equation: Y= k.rho.V2/g; wherein k is the calibration constant, .rho. is the density or specific gravity of the member, V is the velocity of a sound through the member and g is the acceleration due to gravity. The calculation of wood product bending stiffness may be carried out manually, or maybe calculated using a calculating sub-system 32 from the two measured values, density and velocity, according to Equation 1 above.

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