Robbert huizen
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Robbert huizen's Discussions

accelerometer calibration only in half of the sphere working

Started this discussion. Last reply by Andre K. Nov 17, 2016. 1 Reply

Please see the picture below; One of the two accelerometers (we think the one from the externam ublox gps module) is not calibrating like it should. We are not able to reach half+ of the measurement…Continue

Tags: failure, sensor, calibration

Crash analysis APM2.6 decline after flying high

Started this discussion. Last reply by Micha Jul 29, 2016. 3 Replies

A couple of days my quad crashed, because I'm kind of new to Arducopter I would like you to review my reasoning (log file is attached to this post).The flight & crashAfter having flown for some…Continue

Tags: analysis, log, crash

 

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Andre K. replied to Robbert huizen's discussion accelerometer calibration only in half of the sphere working
"unless you have some bad magnetism nearby, sensor is defective"
Nov 17, 2016
Robbert huizen posted a discussion

accelerometer calibration only in half of the sphere working

Please see the picture below; One of the two accelerometers (we think the one from the externam ublox gps module) is not calibrating like it should. We are not able to reach half+ of the measurement points/ white dots.Setup:- pixhawk controller- ublox/neo gps module=> all mounted on the same frame! No settings at the calibration screen have been altered by me.What could be the cause?…See More
Nov 16, 2016
Micha replied to Robbert huizen's discussion Crash analysis APM2.6 decline after flying high
"While it is in VRS state a bit of forward stick should clear the vortex and the wobbling is indeed a sign. Without seeing your rig it is difficult to comment on CH3 as it is quite possible that your cog is the reason. If not excessive that should…"
Jul 29, 2016
Robbert huizen replied to Robbert huizen's discussion Crash analysis APM2.6 decline after flying high
"Thank you for your comment! After doing some research this seems to be the cause of the crash (the quad was 'wobbling' during it's descent and didn't respond on it's throttle). What could be the reason that one of the…"
Jul 29, 2016
Micha replied to Robbert huizen's discussion Crash analysis APM2.6 decline after flying high
"Vortex ring state maybe?"
Jul 29, 2016
Robbert huizen posted a discussion

Crash analysis APM2.6 decline after flying high

A couple of days my quad crashed, because I'm kind of new to Arducopter I would like you to review my reasoning (log file is attached to this post).The flight & crashAfter having flown for some minutes on a mountain hill in Loiter (+- 10th quad flight), I decided to increase the height of my F450, 2212, 9443 props, to record a nice shot with my attached action cam. After this shot I lowered the height of the quad, and when it reached about 10M above the hill's surface I gave full throttle.…See More
Jul 28, 2016

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