How to Mount the IMU
Option 1: Roof-Mounting (Recommended)
The easiest method of mounting the IMU is by placing it directly on the vehicle roof, co-located with the GPS antenna.
Magnetic base (RLACS216)
A specially designed
allows for an
IMU04 (only)
to be securely
fastened within the machined enclosure while it's
magnetic base ensures that it stays safely in place.
The antenna can then be placed directly above the IMU
allowing for the data sources to be measured at the
same point (if you are using a non-magnetic ground-
plane antenna, the RLACS230 IMU04 Roof Mount
should be used instead).
By co-locating the antenna and IMU on the vehicle’s roof
the distance between the two does not have to be
measured, as you do in a standard setup, leaving only
the required translation to – typically – the vehicle’s
centre of gravity. This method is easier and isn’t prone to
human measurement error. Co-locating the antenna with
the IMU also greatly improves the performance of the
Kalman filter.
https://en.racelogic.support//Product_Info/VBOX_Data_Loggers/VBOX_3i_Range/VBOX_3i_User_Guide_(All_Variants)/12-1_-
_VB3i_IMU_Integration_-_In-Vehicle_Mounted/How_to_Mount_the_IMU
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