I think the rating of the IMU`s depend of there vibration resistance
and the bias of the rate sensors.
I think there is the following rating:
1. Bosch (SMG074)
2. Analog device (ADXRS620..) 3.Melexsis 4. Invensense 5. ST
The Bosch and the Analoag device are made for automotive applications
and therefore they deliver a maximum of vibration tolerance.
For normal planes the best algorithm in my opinion is the dydrohnes
DCM, since this can correct the attitude given by integration of the
even when continuos circles are flown.
You have to consider the centripetal forces. Every IMU without
measuring the speed over ground can't do this.
If you want to test the Analog device types you can fit sparkefun
to a box (total cost < 80 Euro). This is software compatible to the
paparazzi DCM implementation. You can find them in the repository of
I think this will also solve you problem with IC-motors.
Ensslin Oliver (enso) schrieb:
I beleive the ArduIMU+ V2 has
been discontinued. As we fly our UMARS (with Tiny 2.11) with this IMU
and several “student planes” I am thinking of changing to another IMU.
What would be your
How do the other IMU’s
compare with the ArduIMU? (for fixed wing)
Would the Aspirin IMU be
appropriate for the replacement?
How is the vibration
tolerance for Aspirin?
I would be thankful if you
would tell me your experience.
Paparazzi-devel mailing list