That sounds interesting.  Can you describe a circuit and how to interface it
to the PIC A/D?

Thanks.
-Derek


> -----Original Message-----
> From: Alan B. Pearce [mailto:A.B.Pearce@RL.AC.UK]
> Sent: Monday, August 05, 2002 11:07 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE] long-life potentiometers
>
>
> > I need a small, single-turn pot that has a long wiper life
> > and low noise
> > during travel.  Something like a servo feedback pot, but tiny.
> >
> > Are there any non-contact components (optical?) that can
> > accomplish this?
> >
> > Recommendations welcome as always.  Thanks.
>
> As you need it tiny, I suspect it may be practical to think
> about making
> your own LVDT sensor. If the travel is short enough then you
> could probably
> use a potcore winding former for the windings, and a ferrite
> slug as the
> moving element.
>
> --
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> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
>
>

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