Tilt Axes Orientation And Convention; Figure 75: X, Y, And Z Axial Orientation For Rstar Affinity Tilt Logger - RST Instruments RSTAR Affinity Installation And User Manual

9 T A
ILT XES
The Tilt Logger reports deflection and displacement directly in degrees of arc.
The three tilt sensors measure the angle of the X, Y, and Z axes shown in
Figure 75 above or below the horizontal plane. In the orientation shown in figure
X, the X, Y, and Z axes would report 0º, 0º, and +90º respectively.

Figure 75: X, Y, and Z Axial Orientation for RSTAR Affinity Tilt Logger

NOTE: Deflection and displacement are determined using two of the three available
axes. In Figure 75, axes X and Y are used for this purpose. The sensor's resolution,
precision, and temperature sensitivity degrade beyond ±60° from the horizontal.
When the sensor rotates out of the high-precision region, the unused sensor takes
over.
Translations along the X, Y, or Z axes, as well as rotations in the horizontal plane,
are not meaningfully detected by the accelerometers. In these cases, the angle
between any axis and the horizontal plane remains unchanged.
PSM0005A
Released: 23 Jan 2025
O
RIENTATION AND
RST Instruments Ltd.
RSTAR Affinity Tilt Logger
Installation and User Manual
C
ONVENTION
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