Vibration - Advanced Navigation Spatial FOG Dual Reference Manual

9.9

Vibration

Spatial FOG Dual is able to tolerate a high level of vibration compared to other inertial
systems. There is however a limit to the amount of vibration that Spatial FOG Dual can
tolerate and large levels of vibration will cause Spatial FOG Dual's accuracy to
degrade.
When mounting Spatial FOG Dual to a platform with vibration there are several
options. It is recommended to first try mounting Spatial FOG Dual and see whether it
can tolerate the vibrations. The raw sensor view in the Spatial FOG Manager software
can give you a good idea of how bad the vibrations are. If the vibrations are causing
the sensors to go over range you will need to take preventative steps against the
vibration.
If Spatial FOG Dual is unable to tolerate the vibrations there are several options:
1. Try to find a mounting point with less vibration.
2. Spatial FOG Dual can be mounted on top of a small flat piece of rubber. Please
note that this may cause small changing orientation errors due to flexing of the
rubber.
3. Spatial FOG Dual can be mounted to a plate which is then mounted to the
platform through vibration isolation mounts.
Spatial FOG Dual Reference Manual
Illustration 22: Radar
speed sensor
Page 38 of 138
Version 1.0
26/06/2015