7.11 Magnetics
Boreas uses FOG sensors to calculate heading; therefore, its heading is not corrupted by stray and changing
magnetic fields. However, FOG sensors can still be affected by magnetic fields, which are strong and in close
proximity. It is recommended that Boreas is not mounted directly on or closely adjacent to electric motors,
solenoids and high current pulsed wiring.
7.12 Vibration
Boreas is able to tolerate a high level of vibration compared to other inertial systems. This is due to a unique
gyroscope design and a special filtering algorithm among other things. There is however a limit to the amount of
vibration that a unit can tolerate and large levels of vibration can cause degraded accuracy.
When mounting Boreas to a platform with vibration present, there are several options to mitigate the negative
performance effects. It is recommended to conduct a brief operating check to confirm performance is within
specification before conducting longer runs. The Raw Sensor view in the web UI or Boreas Manager can give
you a good idea of how bad the vibrations are.
If there are persistent issues:
l
Try to find a mounting point with less vibration.
l
Mount Boreas to a plate which is then mounted to the platform through vibration isolation mounts. Be
mindful that a plate with very soft mounts may also cause problems with shifts in orientation over time.
v1.2 Page 37 11 Oct 2022
Boreas Reference Manual • Installing Boreas
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