Roll and Pitch affect Yaw
GoogleCodeExporter opened this issue · comments
Google Code Exporter commented
What steps will reproduce the problem?
1. Switch on Razor IMU, using either v1.0 or v1.1
2. Keep IMU flat, point it to yaw = 0
3. Now rotate the IMU 45 around the pitch axis, either side
What is the expected output? What do you see instead?
Expected to see the yaw output to remain constant - Was sure output was tilt
compensated
What version of the product are you using? On what operating system?
Tried both v1.0 and v1.1. Windows 7 x64.
Please provide any additional information below.
All measurements done fixed to the yaw = 0 line (reading taken in flat position)
Whilst pitch = 0
roll yaw
30 -23
20 -17
10 -10
0 0
-10 14
-20 26
-30 30
Whilst roll = 0
pitch yaw
30 -10
40 -50
0 0
-30 1
-40 1
Weird - positive readings affect yaw, negative don't
I would really appreciate some help, I'm using the IMU in a project which needs
to be ready pretty soon, and I have only just become aware of this issue (after
a year of work) :/
Original issue reported on code.google.com by deee.ka...@gmail.com
on 8 Feb 2012 at 10:13
Google Code Exporter commented
Checked all the sensors individually, they all seem to be giving valid readings.
Original comment by deee.ka...@gmail.com
on 8 Feb 2012 at 10:33
Google Code Exporter commented
Weird, seems like the positive pitch compensation is working.. At least now it
is.
The roll problem persists. If the board is tilted to the right, the yaw heads
clockwise, and if it is tilted to the left, the yaw heads anti-clockwise (Just
looked at it in the python interface, this is truly driving me nuts now)
Original comment by deee.ka...@gmail.com
on 8 Feb 2012 at 10:52
Google Code Exporter commented
http://code.google.com/p/sf9domahrs/issues/detail?id=7
Seems like another person with same problem.
Original comment by deee.ka...@gmail.com
on 8 Feb 2012 at 11:18
Google Code Exporter commented
Hello,
I am currently working on my own implementation of IMU (GY-80 with Arduino). I
have same kind of issues. Pitch compensation works just fine, but roll have
some negative influence on my heading calculations.
Did you make any progress?
Regards.
Original comment by matejmin...@gmail.com
on 2 Feb 2014 at 9:49