|
Hi Blake
The calibration procedures detailed at IMU Calibration extend
only to ACCEL & MAG.
You will have to embark upon a much more involved
process to calibrate GYRO.
The basic cheap setup can be viewed here:
The code for this turntable setup is located in the
repo here: and
here:
I am currently building something similar and it
requires a bit more effort beyond that which I have pointed
to.
For instance appropriate session files have to set
up in control_panel.xml depending on your mode of
mesaage delivery, an encoder
purchased and much more I guess as I progress.
Regards
Stephen
On Wed, 09 Nov 2011 11:02:56 +0100
Gautier Hattenberger wrote:
Hello, The calibration procedure should be the same. It concerns the
IMU part that is now common to fixed wing and
rotorcraft. Gautier On 08/11/2011 23:32, Blake Chambers wrote:
Looking at the Messages for the
"IMU_ACCEL_RAW" the "int32 az (adc)" value hovers around -260, which I'm
guessing means it has not been calibrated.
I was looking over the ImuCalibration page, but it looked like it was
for rotorcraft. Can I use the calibration scripts suggested on this page
for a fixedwing IMU? Are there other ways to manually calibrate the
three components I am using (l3g4200, adxl345, and hmc5843)?
Respectfully,
Blake J. W. Chambers
MIT '13 Aero/Astro Department
Phi Kappa
Theta
Phone: (719) 387-1489
On Mon, Nov 7, 2011 at 3:03 PM, Christophe De Wagter
<address@hidden> wrote:
Dear Blake,
How did you calibrate your IMU? Did you look at the messages to see if
your accelerometer and gyro's are looking correct (accelerometers should
measure -9.81 m/s2).
Choosing another ahrs filter will give the same problems if your
calibration is not good enough.
-Christophe
On Mon, Nov 7, 2011 at 12:52 AM, Blake Chambers <address@hidden> wrote:
Hello,
I am having some issues with the DCM AHRS setup for the PPZUAV IMU.
The attitude value will not increase past + or - 10deg no matter
how I hold the autopilot.
It might be important to note that I have edited the PPZUAV setup to
use a l3g4200 gyro instead of the itg3200.
Can someone advice me on how to configure the ahrs correctly?
As a side note, are there any other imu filtering options?
Thank you.
Respectfully,
Blake J. W. Chambers MIT '13 Aero/Astro Department Phi
Kappa Theta Phone: (719)
387-1489
|
