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Angle measuring technology

The principles of angle measurement are based on reading an integrated signal over two opposite areas of the angle sensor and producing a mean angular value. This eliminates inaccuracies caused by eccentricity and graduation.

In addition, the angle measurement system compensates for the following automatic corrections:

Instrument mislevelment (deviation of the plumb axis).
Horizontal and vertical collimation error.
Trunnion axis tilt. See Correction for trunnion axis tilt.

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