FIELD: wood-working industry, in particular, controlling of long sawn timber for rectilinearity deviations.
SUBSTANCE: method involves evaluating long sawn timber (6 m and more) for rectilinearity deviations by measuring gap between surfaces of two equal boards under evaluation, said surfaces being arranged symmetrically to longitudinal axis extending through mid portions of two layers. Layers increase gap between surfaces to value allowing said gap to be measured by means of slide gauge (or inside calipers) instead of probes. Rectilinearity deviation value at control points is calculated in the form of half-difference between measured gap and layer thickness.
EFFECT: wider range of measurement means for carrying out mass measurements.
2 dwg
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