[simpits-tech] phidgits + Building Gauges
Matt Bailey
simpits-tech@simpits.org
Mon, 28 Oct 2002 19:49:15 -0500
What servos do you use?
-Matt Bailey
Marv De Beque wrote:
>
> Servos are very fast. At least in the gauges I make. I would estimate I
> can make a 360 rotation in about 1/4 second.
>
> Additionally, there are optical encoders that have a 360 degree span and at
> least a 1 degree resolution. Adding additional encoders can expand that
> resolution. This would allow the use of DC motors to make very rapid
> changes in rotation and to very precise positions.
> --
>
> > From: "Rod Dale" <rodd@castle.net.au>
> > Reply-To: simpits-tech@simpits.org
> > Date: Mon, 28 Oct 2002 14:56:11 -0800
> > To: <simpits-tech@simpits.org>
> > Subject: Re: [simpits-tech] phidgits + Building Gauges
> >
> > No problem with the servos. These are used to drive needles that require less
> > than 360 degrees travel. Most aircraft gauges like this , ie airspeed ind &
> > RPM etc don't need to travel as fast as the altimeter. So servos work well in
> > that situation.
> > Rod