Coordinate system determination method for contactless 3-dimensional object measuring device calculates spacing of triangulation sensor from turntable centre by measuring parallel lines or edges on turntable

摘要

The coordinate system determination method has parallel edges or lines positioned on the object turntable (1) of the measuring device, for measurement via the triangulation sensor (2) of the latter during the rotation of the turntable, with calculation of the distance of the triangulation sensor from the centre point of the turntable using the detected rotation angles for a given displacement of the triangulation sensor during each measurement and the known spacing between the lines. The turntable centre point is used as the origin of the coordinate system and the displacement direction of the triangulation sensor is used as one coordinate direction, the remaining coordinates determined by Pythagoras.