60
⑦
To measure distance between
point A and C, sight prism C and
then click [Meas. After measuring,
horizontal distance between the
instrument and prism C displays.
[Measure]
⑧
Click [Continue], the horizontal
distance (dHD) height differentia
(dVD) and slope distance (dSD)
between prism A and C display.
[Continue]
※
1) Click [Exit] to return to main menu.
●The observation procedure of (A-B
，
B-C) is same as (A-B
，
A-C).
7.4 LINE MEASUREMENT (LINE)
The Line Measurement program allows the user to measure the height of an
inaccessible object above a point. Both the inaccessible object and the point are located
along an established base line. Two prisms, A and B, are set up apart from each other
below the object to establish the base line. The horizontal distance is measured and set
in the instrument for both prism A and B. The screen then shows the vertical distance
from prism A and B, the horizontal distance from the instrument to prism B, and the
distance along the base line and the screen will display the vertical distance from prism
A to that point, the horizontal distance for that point. Additionally, the vertical distance
between two points on the base line, Point G and L in the diagram can be measured.
Example
：
Input of prism height
