Assessment of the Influence of Geomagnetic Activity on the Additional Error of Inclinometer Systems

The study of additional errors of inclinometer measurements is an important problem. In the process of meas- urement, the key role is played by the accuracy of the tool, which depends not only on the characteristics of the instrument and its calibration, but also on external influences. The most important of these influences is geo- magnetic activity, which has a serious impact on the error of inclinome ter systems. This can result in significant economic and reputational losses.