INVESTIGATION OF THE ECCENTRICITY OF ALIDADE OF ELECTRONIC TOTAL STATIONS
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Abstract
The article presents the results of a study of the alidade eccentricity of modern electronic total stations. Accurate and high-precision electronic total stations were chosen as the subjects. The studied electronic total stations have a one-way and two-way limb counting system and are equipped with absolute type barcode limbs. The eccentricity of the alidade was determined from the fluctuation of the collimation error obtained for different orientations of the alidade. The research results showed that the maximum value of the alidade eccentricity in all the total stations studied is two or more times higher than the accuracy of angular measurements declared by the manufacturer.
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References
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