Vibration

Certus 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 — temporary degradation in accuracy may occur while operating under high vibration.

When mounting Certus 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 Certus Manager can give you a good idea of how bad the vibrations are. If the vibrations or shocks in operation are causing the sensors to go over range, you will need to increase the sensor range because this will significantly degrade position and orientation estimates. See Sensor Ranges for details.

If there are persistent issues:

• Try to find a mounting point with less vibration.
• Certus can be mounted with a small flat piece of rubber to provide some isolation. This must not be very soft foam which may result in an incorrect level over time.
• Mount Certus 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.