Technical Terms And Abbreviations - Leica RUNNER 20 User Manual

Technical terms and abbreviations

Plumb line
Plumb line
By centring the circular level the
instrument is nearly levelled up.
A small instrument tilt remains
(the vertical axis tilt).
RUNNER 20/24-1.0.1en
Line-of-sight
Vertical
axis tilt
Compensator
The compensator in the
instrument is responsible for
compensating the vertical axis
tilt enabling an exactly horizontal
aiming.
Plumb line
9
9
R
A
Backsight/Foresight/
Intermediate sight
For determining the height
difference (∆H) between the
ground points A and B the back
sight (R) is measured first
followed by the forward sight
(V). Additional points relating to
A are measured as intermediate
sight (S).
Introduction
V/S
B
(∆H)