Topography Observation - Sokkia iM-50 Series Operator's Manual

19.TOPOGRAPHY OBSERVATION

In topography observation, the instrument observes each target point once, clockwise from the backsight
direction and record the observed data. It is also possible to conduct topography RL observation which
observes the target point once from each of the "Right" and the "Left" of the scope.
Topography observation
Order of observation
(1) R1
(2) R2
(3) R3
Topography RL observation
Order of observation
(1) R1
(2) L1
(3) R2
(4) L2
(5) R3
(6) L3
The flow of topography observation is as follows:
Observation
setting
↓
Instrument station
setting
↓
Backsight point
setting
↓
Collimation point
registering
↓
Observation
↓
Observation end
(1)R1
Instrument
S
station
(1)R1
(2)L1
Instrument
S
station
Sets a measurement pattern, and Yes or No for topography RL
observation and collimation point registration.
Sets a backsight point coordinate when setting "Yes" for
"Backsight distance check" in the observation setting.
Registers a collimation point when setting "Yes" for "Pre-
entered point registration" in the observation setting.
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Target point
T1 (backsight direction)
T2
(2)R2
(3)R3
T3
Target point
T1 (backsight direction)
T2
(3)L2
(4)R2
(5)R3
(4)L3
T3