On Mon, 25 Aug 1997 13:24:55 -0300 Octavio Nogueira
<nogueira@MANDIC.COM.BR> writes:
>The 5kg load cells costs me about US$60 and I don't thing the
>spring/motion
>sensor
>could have the same precision as load cells, but if you don't need
>precision,
>it's just ok, but then you have mor mechanics to deal with.
>

        Wow!  I'm surprised they're that much, though I never tried to
buy one.  I have, however, bought some pressure transducers from
Motorola.  As I recall, they were pretty cheap (I think under $10 US) and
included conditioning circuitry so something like 0 to 5 volts came out.
So...  maybe make a scale by having a piston and cylinder drive a
pressure transducer?  There's gotta be an easier way!

Harold