TARGET FOR MEASUREMENT OF EXCAVATING TRACK AND MEASURING METHOD FOR EXCAVATING TRACK BY USING THE TARGET

摘要

PROBLEM TO BE SOLVED: To provide a measuring method in which the deviation and the inclination in the vertical direction and the horizontal direction of an excavator can be measured simultaneously by using a single target by a method in which the central point is formed on the vertex of a cone or a pyramid and an outer frame is formed at a base part. ;SOLUTION: A target 1 is formed to be a cone or a pyramid shape, the central point 12 is marked on its vertex, and an outer frame 15 is formed at its base part 14 or a contour line 11 is marked on its side face 13. The single target 1 is installed at the rear part of an excavator 2 via the outer frame 15 in such a way that its axial line is along the axial line of the excavator 2. Then, on the basis of an image obtained by collimating the target 1 by using a collimator 5 from the side of a start vertical hole 3, the deviation and the inclination in the horizontal direction and the vertical direction of the excavator 2 are measured. That is to say, on the basis of the distortion of the contour line 11 from the outer frame 15 of collimated image, the inclination in the horizontal direction and he vertical direction s measured, and, on the basis of the deviation of the central point 12 from the reference point of the collimator, the deviation in the horizontal direction and the vertical direction is measured. Thereby, the deviation and the inclination in he horizontal direction and the vertical direction can be measured simultaneously.;COPYRIGHT: (C)1998,JPO