- Hyne & Son, Ltd: Tuan, Queensland, Australia
The image below shows how data from the Hyne NMI moisture meter and Metriguard continuous lumber tester (CLT)
are overlaid on the GradeScan board images. The first four images from the left are the color images of the top,
bottom, and narrow sides of a single board. The next two images are moisture and strength measurements represented as the colors
of the rainbow. Blue represents high values and red low values. The moisture results are all yellow, a value near
the middle of the acceptable range. The strength results show the board is very strong, except where the color
shifts to yellow, which represents the location of the weakest part of the board.
Note that since the ends of the board cannot be measured in the CLT, GradeScan uses visual
MSR grading rules to estimate the strength of this area.
The solution for the board below is a cut-in-two with trim. The leading piece
is graded Utility, as shown in the top surface color image below. Just to the right of that,
notice that you can see the reason for its downgrade; MOE (Modulus of
Elasticity).
Since GradeScan receives the strength data, it can cut away the weak
area and preserve a higher value strength-rated grade section. The trailing end trim is
caused by excessive warp detected by the warp bridge.
