Page 84 - Lehrbuch Neigungsmessung deutsch 2018.indd

COMPENDIUM INCLINATION MEASUREMENT
WYLER AG, WINTERTHUR / SWITZERLAND

HOW IS A RIGHT ANGLE MEASURED AND INTERPRETED?
The reference line (horizontal) and the
measuring line (vertical) are measured with
an instrument with an angular base. The li-
nes are aligned with one of the alignment
methods (in our example on the left accor-
ding to ISO 1101).
The distance between the two vertical
planes that are perpendicular to the refe-
rence line corresponds to the angular error
Reference plane of the measured object. Depending on the
alignment method, the angular errors have
90° different sizes.
Reference line

The distance between the two levels
corresponds to the angular error
according to ISO1101

All lines, i.e. measuring line and reference line, may be aligned according to all alignment methods such as
• Endpoints method
• ISO 1101 method
• Linear regression method
For each alignment method of the reference line, the deviations of the measured line are provided again
in all three alignment methods.

Page 84