Re: [mowbot] A Lurker Says, "Hello".
robin nospam at acm.org
Tue, 24 Sep 1996 16:50:04 +0100
Dave Everett <Deverett nospam at vir.idx.com.au> wrote:
> I did build a sonar system last year that had a range of about 3 metres,
> but it also had a minimum of about 2 inches. I might do a few experiments
> with that later on.
I'm impressed! Most of my experiments were with a single transducer,
and ring stopped anything less than about 50cm (maybe 40cm with
stepped gain). But even when I used two, the cross-talk was enough
to mess up readings less than 20cm (~8 in). Did you do anything fancy?
Robin.
--
R.M.O'Leary <robin nospam at acm.org> +44 973 310035 P.O. Box 20, Swansea SA2 8YB, U.K.