Now the question is: Where does one get (buy or make) the wind vane?

How about wind mills? Any sources for making or buying the business end of a
wind power system?
I need a low cost to make, $0 to operate water pump for my passive solar
heat storage system design.

BTY: See, you can edit the Subject line to add [OT] ;)

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James Newton mailto:jamesnewton@geocities.com 1-619-652-0593
http://techref.homepage.com The Technical Details Site.
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-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Smith, Clay
Sent: Friday, January 14, 2000 11:02
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: Windspeed circuit?


One method for wind speed measurement is to connect a permanent magnet motor
to a wind vane.  The motor will act as a generator and the CEMF generated is
proportional to the speed of the motor.  May be a 100v dc if your gearing is
to step, but a higher max speed is better to get out of the IR drop RPMs
CSS