51
⑷
Sight at backsight point, press YES, finish
setting and returns to coordinate measurement menu
screen.
Coordinate
1. Observation
2. Stn data
3. Back sight data
NOTE
:
Read coordinate value from memory.
Observation station coordinate value: Move the cursor to N0orE0orZ0 and press READ.
Backsight station coordinate value: Move the cursor to NBS or EBS or ZBS and press READ.
10.3 Coordinate Measurement
·
The coordinate values of the target can be found by measuring the distance and angle to the target based the
settings of station data and azimuth angle.
The coordinate values of the target are calculated and displayed using the following formula:
Station point coordinates: (N0, E0, Z0)
Instrument height
Prism height
Height difference: Z
The coordinate difference from the instrument center to prism center: (n,e,z)
Unknown point coordinate: (N1
,
E1
,
Z1)
N1 = N0 + n
E1 = E0 + e
Z1 = Z0 + instrument z – prism height
Содержание KTS440 L Series
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