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Re: [Paparazzi-devel] Airspeed sensor

From: Andrew S
Subject: Re: [Paparazzi-devel] Airspeed sensor
Date: Sun, 06 Sep 2009 14:38:08 +0400

The Pitot tube is not necessary, because within 20 deg of angle of attack 
simple plastic tube works quite well. Fixed wing aircraft flyes on angles less 
than 20 deg...  
Anyway, publish your solution, it is interesting

06.09.09, 13:46, "Famille Chateauvieux-Hellwig" <address@hidden>:

> Hi all,
> I've seen recently a number of thread on the list questioning for an airspeed 
> sensor.
> I built such a sensor recently. It didn't fly yet but I believe it works fine 
> as 
> I get quite stable measurement of my hair dryer !
> I could publish this if any body is interested. The construction is basically 
> a Pitot tube from sm modellbau in germany (
> which is 
> connected 
> to an freescale differential pressure sensor. The pressure sensor signal is 
> adjusted for the required speed range with a operational amplifier of which 
> the 
> output is fed into an AVRmega 10 bit ADC.
> I can publish an eagle schematic, and a piece of AVR GCC C code. Probably I 
> can find again the OpAmp calculation.
> Anybody interested?
> Martial
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> address@hidden

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