FIELD: test equipment.
SUBSTANCE: invention refers to timber industry and is intended for early determination of resonance parameters of standing wood. Sample is fixated with 1.0 Nm torque through general-purpose rubber band of 50-60 conditional units hardness, applied in contact area of cam lock, with 1.0-2.0 mm process clearance 1.0 between band ends.
EFFECT: fast and precise determination of resonance parameters in timber.
4 dwg, 2 tbl, 1 ex
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