[Xastir] Temperature sensor shields for wx stations

[Bennett, Bruce]

For my weather stations, I've found that mounting the temperature sensor
somewhat below mid way up a 2 meter or so long, vertically mounted section
of 2 inch PVC pipe, painted silver or foiled - except for the top 5 inches.
Darken the top 5-inch section to create some small thermal siphon effects.
Oh - and keep the pipe ends well clear (1 meter) of building roof, ground,
other obstructions. This method is dirt cheap and seems to yield good CWOP
quality ratings... (plus observed solar fluxuations)

Doesn't keep the rain off completely, but very little actually comes that
far right straight down the center of the tube to contact the sensor.

I also acquired one of those barn turbine vents (for a dollar at a yard
sale) and intend to try it out as a shield for a thermal sensor too... :)

Bruce Bennett
BBennett at Spang.COM
(440) 352-8600 X 3350
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All major advances can be directly attributed 
to optimistically under estimating the amount 
of work required for the task...