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Instruction manual - EN
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8. SHM Triaxial Accelerometer
8.3 Accelerometer orientation
ORIENTATION LABEL
Before installing the device on the structure it is necessary to understand how to
correctly orient the axes shown on the orientation label located on the device cover.
The orientation label acts as an indicator of the direction in which the Accelerometer
device must be rotated and oriented.
SENSOR ORIENTATION
To correctly install the Accelerometer device on the structure and to characterize
the modal behavior of the structure by which it is possible to extrapolate the modal
parameters (modal frequencies, modal shapes and damping), it is mandatory to:
•
It is MANDATORY to install the Accelerometer devices according to the
same convention, with the axes shown on the label of each specific device
oriented in the same way.
•
SPECIFIC EXAMPLE:
•
X axes of sensors always oriented upward and aligned with the ver-
tical axis of the structure.
•
The plane formed by the Y - Z axes parallel to the horizontal plane.
The orientation of the Accelerometer device does not vary depending on where it is
installed (wall, ceiling or floor).
SPECIFIC EXAMPLE OF INSTALLATION:
8.4 Accelerometer installation guide
INSTALLATION ON THE STRUCTURE
Depending on the context and the morphology of the structure, the Accelerometer
device can be installed in any arrangement:
•
Rear or side wall installation.
•
Floor installation.
•
Ceiling installation.
IMPORTANT
•
These specifications are MANDATORY to allow to collect aggregable
data and extrapolate modal parameters.
Parallel X axis
to the gravitational axis
X axis oriented
upwards
Y - Z axes parallel
to the horizontal plane
IMPORTANT
•
It is MANDATORY to install the Accelerometer devices according to the
same convention.
Floor installation
Side wall installation
Ceiling installation
Rear wall installation