Problem with compass calibration. Weird shift

Posted by Artem Kholodkov on September 29, 2015 at 4:51am

Hello everybody. 

Have occurred weird problem with second compass and its calibration.

Here already problem was explained by another forum member. :

http://diydrones.com/forum/topics/multiple-issues-with-compass-calibration-screenshots-inside

I thought, I have same situation, some magnetic field affect on my compass. I just demount pixhawk + gps(with second compass) from plane. Mount it to wood rail, far from any magnetic fields, Do calibration one more time , but still problem exist. Second compass have weird shift during calibration process.

Try with different versions of Adpuplane.

 

I need advice from more experienced users

Thanks a lot. 

Artem

4.JPG

2.jpg

3.jpg

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Replies

  • Artem Kholodkov September 30, 2015 at 11:50pm

    Thanks guys,

    That's unbelievable, that was thin metal nail between black case and tape. I used it to increase stability of gps during mounting of it to not-plain surface on my plane. I completely forgot about this nail, and when i change it to wood one, problem gone.

    Thanks a lot.

  • This reply was deleted.
    • Artem Kholodkov September 29, 2015 at 5:46am

      I remove Pixhawk and external gps with compass in order to eliminate any magnetic field around. Please have a look to 4.JPG, that is just wood rail with pixhawk and gps on it. I can't understand why something affect to external compass and internal does not have this shift . (

    • Adam Kroll > Artem Kholodkov September 30, 2015 at 5:27am

      Its best to do it outside, away from any powerlines and underground power, preferably somewhere with little infrastructure and power like your flying field.

This reply was deleted.