[sdiy]Touch pads?

[Happy Harry]

I'd use Piezo Sensors and sense impact. Almost all cheap-o
drum sensors use this technology. It is velocity sensitive. The
hard part is preventing interaction from mechanical coupling.
Roland cured this by summing in an extra trigger mounted in the
frame. Other methods work also.

H^)  harry


>From: Jim Patchell <patchell at silcom.com>
>To: synth-diy <synth-diy at node12b53.a2000.nl>
>Subject: Re: [sdiy]Touch pads?
>Date: Mon, 26 Feb 2001 14:31:34 -0800
>
>
>
>Jaakko Lofstrom wrote:
>
> > Hello list,
> >
> > Has anyone come up with a simple and affordable implementation of this?
> > I've heard of pressure sensitive resistors, but can't seem to find a 
>source for
> > them. Then there are various breeds of strain gauges but they appear
> > prohibitavely expensive and/or inaccurate.
> >
> >
>
>     If you want to experiment...velostat will make a presure sensitive 
>resistor
>(This is the black plastic that they make the Anti Static bags out of, not 
>the pink
>ones, but the black stuff).
>
> >
> > cheers,
> > Jaakko Löfström
>
>     -Jim
>

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