RE: [Paparazzi-devel] Calibrating PFD to match aircraft attitude

[Edixon Giraldo]

Hi Felix, I went through the IR sensors set up many times.  I aligned ir1 wingtip to wingtip and ir2 nose to tail.  Positive values when I put my finger in the bottom, the right, and the rear sensors.  This does calibrate the PFD, however, the elevons do not move in the correct directions.  In MANUAL mode, I do have control of the aircraft and all the control surfaces move in the correct directions.  But, in AUTO1 or AUTO2 when I point the nose up the correction is for the roll, and when a roll to either side the correction is for the pitch.  In other words they are switched somehow.  I came to the conclusion I need to look somewhere else, but, I don't know where. :( Help!

Thanks.

Eddie.





> Date: Sat, 14 Aug 2010 14:46:49 +0200
> Subject: Re: [Paparazzi-devel] Calibrating PFD to match aircraft attitude
> From: address@hidden
> To: address@hidden
>
> Hi,
>
> don't fly until this is correct!
> First you need to set up your IR sensors to get attitude estimates
> with the right direction, see
> http://paparazzi.enac.fr/wiki/Airframe_Configuration#Infrared
> Look at IR1_SIGN, etc.
> Then make sure your control surfaces move correct in Manual first,
> then AUTO1: http://paparazzi.enac.fr/wiki/Tuning#Directions
>
> Cheers, Felix
>
> On Sat, Aug 14, 2010 at 1:59 PM, Edixon Giraldo <address@hidden> wrote:
> > Hi, I have completed my aircraft and installed all the components.  Sensors,
> > I believe, are installed in the right direction.  When I pull the nose up,
> > the elevons move down to correct, when I roll either left or right, the
> > elevons move to correct in the oposit direction.  However, when I check the
> > PFD in my laptop, the attitude estimator moves in totally different
> > directions from the real attitude of the aircraft.  I have read the tuning
> > pages of the wiki and the Airframe Configuration pages and have not been
> > able to find anything on how to make the correction.  Can someone please
> > guide me on how to fix this? or guide in the right direction on where to
> > find the solution?  I am going out to the field this afternoon for the first
> > time and fly it to begin the tuning process, but, I just haven't been able
> > to correct this.
> >
> > Thank you.
> >
> > Eddie.
> >
> > _______________________________________________
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> > http://lists.nongnu.org/mailman/listinfo/paparazzi-devel
> >
> >
>
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