Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!swrinde!ucsd!ucbvax!hplabs!hpl-opus!hpnmdla!hpsad!cj
From: cj@hpsad.HP.COM (Chris Johnson)
Newsgroups: sci.electronics
Subject: Re: Weather instruments
Message-ID: <1840012@hpsad.HP.COM>
Date: 9 Nov 89 21:31:13 GMT
References: <1267@qip.UUCP>
Organization: HP Signal Analysis Division - Rohnert Park, CA
Lines: 16



    Try looking in back issues of Scientific American. I know that
    sometime around 1972 thru 74 there was an Ametuer Scientist
    article (back when they used to have lots of fun projects you
    could build) on weather instruments that used a DC motor and
    metal kitchen funnels for an anemometer. Direction was done
    with some funky self-synchronous motors which are probably
    impossible to find, but it shouldn't be too hard to do it with
    a slotted disk and some LED/photo transistor pairs now that
    those things exist. I'd look up the article, but all my Sci. Am.
    got destroyed in a fire :-(


    -cj
    cj@hpsad.hp.com