Re: Digitizers, Renishaw (for bill phillips)

Ian,

What kind of computer program, and what do you look for? Using a sound
blaster card? I've used an analyzer program to align HF transceivers.
Just curious.

Alan KM6VV

Ian Wright wrote:

>
> ----- Original Message -----
> From: "Bill Phillips" <cad@...>
> > Any idea where small piezo's might be unearthed from? I would guess the
>
> Hi Bill,
>
> One place I've acquired small piezos from is record player stylus'. I bought
> several a while back from a surplus electronics shop at 20p (about 32 cents)
> each. They were the simple type found on cheap record players but the piezos
> were good enough for my needs. I used a couple of them to make microphones
> for listening to the tick of watches and clocks and inputting the sounds
> into a computer program for analysis. I just tethered one end of the piezo
> to a block on the clip/mounting with epoxy and when the clip is fastened to
> a watch or clock, the vibration of the free end is enough to produce a good
> signal. These piezos are usually in the form of a small rectangular rod,
> maybe 1/2" x 1/32" x 1/64".
>
> Ian
> --
> Ian W. Wright
> Sheffield UK
> www.iw63.freeserve.co.uk