Page 94 - Lehrbuch Neigungsmessung deutsch 2018.indd

COMPENDIUM INCLINATION MEASUREMENT
WYLER AG, WINTERTHUR / SWITZERLAND

The sensors are calibrated on high-precision calibration equipment as follows:
1st: Basic calibration at 20 °C with so-called reference points, which vary according
to measuring range
2nd: In addition to the basic calibration, additional calibrations carried out at different
temperatures
3rd: The calibration is checked for deviations of the reference points from the nominal value

Number of reference points:
depending on the measuring range of the The calibration values are stored as reference
sensor points in the EEPROM of the sensor

The values between the reference points
Finally, the calibration followed by further are determined by interpolation
temperatures
DYNAMIC CHARACTERISTICS OF ZEROTRONIC SENSORS
Inclination sensors are highly sensitive acceleration sensors that measure the deviation from the earth’s
gravity. Each non-constant movement produces accelerations that will impact the inclination sensor:
the stronger these external acceleration components, the lower the resulting accuracy of the inclination
measurement will be.
Inclination measurements on moving objects are basically possible if these physical parameters are kept
in mind.
Examples of applications that function well:
• Roll measurement on machines that move evenly along one axis
• Inclination measurement on a boat that is in sheltered harbor area
• Inclination measurement on a container that is lifted
By adapting measuring speed and integration time, the accuracy can be optimized.
Examples of applications that do not function:
• Inclination measurement on a train during a turn (the Coriolis acceleration is too large)
• Inclination measurement on a boat on open sea (the accelerations due to the motion of the sea are
too large)
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