Hello,
Alan Nursall at:
http://sciencenorth.on.ca/AboutSN/polaris/index.html
provides 3 sources for conventional Campbell-Stokes instruments and a
source for an electronic sunshine recorder.
t
--
Tom Semadeni O
[EMAIL PROTECTED] o
aka I (Ned) Ames .
Britthome Bounty ><<((((*>
Box 176 Britt ON P0G 1A0
'Phone 705 383 0195 fax 2920
45.768* North 80.600* West
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Date: Tue, 13 Apr 1999 16:03:11 -0400
Subject: Re: [Fwd: Name of sunlight recording device.]
To: [EMAIL PROTECTED]
From: [EMAIL PROTECTED] (Alan Nursall)
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[EMAIL PROTECTED] writes:
>Does anybody know the name the device described below?
>
>It looks like a glass sphere held in the center of a small equatorial
>sundial. The image of the sun focuses to a point at some short
>distance away from the surface of the glass sphere. Held in place
>at this distance away from the glass and following the curve of
>the sphere is a piece of waxpaper against a dark background.
>When the sun shines, the waxpaper is scorched. When the sun
>is behind the clouds, it is not scorched. The result is a recording of
>the
>amount of sunshine seen at that location on that day.
>
>At least this is how it appears to me from a picture I have seen.
>
>Anybody have a name and possibly a source to buy one?
-----------------------------------------
The device is called a Campbell-Stokes sunshine recorder and any
distributor of professional-grade weather instruments will sell them.
Try Geneq at www.geneq.com
or Casella at www.casella.co.uk/mccampbellstokesdata.html
or Thies Clima at www.thiesclima.de/sonne.htm
Orion has an electronic equivalent at: www.orionelectronics.com/solar.htm
..................................................................................................................
Alan Nursall
Science North 100 Ramsey Lake Rd, Sudbury, Ontario CANADA P3E 5S9
Phone: (705) 522 3701 ext 250
Fax: (705) 522 4954
[EMAIL PROTECTED]
http://sciencenorth.on.ca
46.5°N 81°W Eastern Standard
Time (UTC-5)
