Vibration - Advanced Navigation Spatial FOG Reference Manual

9.9

Vibration

Spatial FOG 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 can
tolerate and large levels of vibration will cause Spatial FOG's accuracy to degrade.
When mounting Spatial FOG to a platform with vibration there are several options. It is
recommended to first try mounting Spatial FOG 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 is unable to tolerate the vibrations there are several options:
1. Try to find a mounting point with less vibration.
2. Spatial FOG can be mounted on top of a small fat piece of rubber. Please note
that this may cause small changing orientation errors due to fexing of the
rubber.
3. Spatial FOG can be mounted to a plate which is then mounted to the platform
through vibration isolation mounts.
Spatial FOG Reference Manual
Illustration 21: Radar
speed sensor
Page 40 of 144
Version 2.3
03/05/2018