Geodimeter 600 - Page 211

2.1.5
ANGLE MEASUREMENT SYSTEM CHAPTER 1
GEODIMETER SYSTEM 600
Calculation of the Horizontal Angle
The formula below is used to calculate the horizontal angle:
HAs = Horizontal angle measured by the electronic sensor.
Eh = Horizontal collimation error.
Yh = Levelling error at right angle to the telescope, corrected
by the automatic level compensator.
U = Horizontal axis error.
The formula below is used to calculate the vertical angle:
Vs = Vertical angle measured by the electronic sensor.
Ev = Vertical collimation error.
Yv = Deviation in the vertical axis, measured by the
automatic level compensator.
V = Vs + Ev + Yv
Calculation of the Vertical Angle
HA = HAs + Eh 1 / sin v + Yh 1 / tan v + U 1 / tan v
(sin v = collimation tan v = levelling tan v = horizontal axis)
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