Hot wire resistance/current flow, air pressure through a venturi,
windmill.

You could have a calibrated mercury drip and a fine wire grid detecting
how far the drops are blown. (this may have an environmental impact ;)

For seriously strong wind replace mercury with plutonium balls, keep
them under 10kgs!

Actually a lead ball on a swing arm should be able to measure up to most
non extinction level events. For severe events you would want a wind
shielded ball as well so as to account for any plate tectonics induced
by the wind. Then just hang you balls out and you can know how windy it
is.

Adjust size of balls for expect range of wind that will pass them.

cya, Andrew...

PS: posted without any rereading, any actual use of this random info at
your own risk.

> -----Original Message-----
> From: mugwa@yahoogroups.com [mailto:mugwa@yahoogroups.com] On
> Behalf Of Chris
> Sent: Monday, 3 October 2005 8:16
> To: mugwa@yahoogroups.com
> Subject: [mugwa] Sensing wind speed
>
>
> Hello Guys
> I've been looking around and trying to learn something about sensing
> wind speed. Apart from anemometers with three cups it appears that my
> options are ultrasonic transducers or using a pair of LM335's, one of
> which is self heated.
> Does anyone have any practical experience with wind speed? Or, has
> anyone heard of another way to measure wind speed?
>
> Regards
> Chris Holme
>
>
>
>
> ------------------------ Yahoo! Groups Sponsor
> --------------------~-->
> Most low income households are not online. Help bridge the
> digital divide today!
> http://us.click.yahoo.com/cd_AJB/QnQLAA/TtwFAA/j5T0lB/TM
> --------------------------------------------------------------
> ------~->
>
>
> Yahoo! Groups Links
>
>
>
>
>