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COMPENDIUM INCLINATION MEASUREMENT
WYLER AG, WINTERTHUR / SWITZERLAND

4.1 APPLICATIONS WITH INCLINATION MEASURING INSTRUMENTS

CIVIL ENGINEERING / BRIDGE MONITORING
Subject:
The deformation in the body of a highway bridge must be conti-
nuously determined over a longer period. The data collection and
supervision is to be performed during the construction work as
well as later on when the bridge is put into service.
Measuring task:
Inclinometers are used for long-term monitoring, the measuring
results of which must be collected, recorded and analyzed with
corresponding software. The analysis of the angular results is spe-
cially interpreted with separate software by converting the angles
to length dimensions.

PRINTING INDUSTRY / ADJUSTMENT OF STANDS AND PRINTING CYLINDERS
Subject:
A modern multi-color printing system consists of several separate
units, one unit per primary color. To achieve high-quality print pro-
ducts, these units must be precisely aligned and adjusted when
assembled.
Measuring task:
Each single-color unit provides horizontal and/or vertical reference
faces which must be used during the manufacturing process in
the production plant as well as for the adjustment of the printing
line. The positions of the reference faces must be adjusted in ac-
cordance to each other, measured, and a record must be printed.
The positions of the printing cylinders must be precisely aligned to
each other (horizontally).

MACHINE TOOLS / SPINDLE ALIGNMENT
Subject:
The main spindle of a milling machine can be set by CNC com-
mands for vertical as well as for horizontal milling. To change bet-
ween the two settings, the milling head rotates on a bearing set at
45°, the median angle between the two positions.
Measuring task:
The deviation from the right angle between the two working posi-
tions “horizontal” and “vertical” must be determined.
This determination is made during assembly, when error correc-
tion is done using a scraper if the unit is mounted on a temporary
frame with doubtful stiffness as well as during the final inspection
of the ready-mounted machine tool.
The measuring uncertainty must not exceed two seconds of arc.
Calculations involved must be possible without the aid of a com-
puter.
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