Calibration of angle-measurement system for direction measurements

The report presents the results of experimental research of the angle measurement system intended for measuring angles between normal to some mirrors setting directions in the space. Dynamic mode of system operation is defined by continuous rotation of platform with the autocollimating null-indicator. The angle measurements are provided by the holographic optical encoder. The different ways of calibration of the system is considered in the report. The results of the system calibration with the chosen method are presented.