Laser trackers are very precise measuring systems which measure distance with interferometric or precise electronic absolute method, using electronic optical encoders they measure the spatial direction. The instruments have a built-in mechanism for directing a beam that follows the moving target. Measurements of angles and distances to the target are used to calculate the coordinates of the target in coordinate system of the instrument. This graduation thesis describes the components of the laser tracker, its performance, influences on the accuracy of measurements, determining the accuracy, standards for testing, comparison of laser trackers with tachymetres, the scope and a review of the market.
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