METHOD TO DETERMINE PLANNED-HIGH-ALTITUDE POSITION OF GANTRY RAILS Russian patent published in 2014 - IPC G01C3/02 

FIELD: measurement equipment.

SUBSTANCE: method consists in measurement of coordinates of points with the help of a tachometer, prisms of which are fixed on "П"-shaped brackets installed on rails. The tachometer is installed in the span of the gantry rail so that in its visibility zone there are several points n₁…n_k and c₁…c_k, arranged at both rail lines. After measurements the tachometer is reinstalled into a new position from the original one. From this position of the tachometer they again determine coordinates of the points n_k and c_k, and using them, they define the coordinates of the new tachometer's position. Then prisms with brackets are serially fixed in points n_k+1…n_m and c_k+1…c_m, arranged along rail lines, their coordinates are measured, measurement results are processed, and actual planned-high-altitude position of the gantry rail is determined.

EFFECT: increased accuracy of measurement of parameters of planned-high-altitude position of a gantry rail in span zones that are unavailable for measurement of parameters with optic and mechanical means of measurement.

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