Measurement device for determining the geometry of bodies, especially tree trunks or columns, is based on a hinged arrangement of measurement arms, the rotational displacement of which is linked in a computer to a diameter reading

摘要

Device comprises two or three measurement arms, hinged so that they can be moved relative to each other. Displacement of the arms is determined by electronic measurement of the angular displacement of the arms relative to each other and the measured angular displacement is converted, using a computer, to a diameter measurement.