Posted by schooner on August 25, 2006, 9:56 pm
Anyone know of a good handheld solar radiation meter? Something to measure
solar radiation levels for checking solar hot air heater efficiency.
Basically want to get a good reading of the solar power available on a given
day to compare panel output levels.
Posted by Anthony Matonak on August 26, 2006, 2:40 am
You could probably make one yourself that would work well enough
by connecting a small (smallest you can find) solar PV panel to
a meter in series with a resistor.
I found an article that describes how to build one here...
Alternatively, you can look for products called things like
"solar pyrometer", "solar insolation meter" or simply "light meter".
I did a quick www.froogle.com search and found the following.
Posted by nicksanspam on August 26, 2006, 8:14 am
I'd skip the reistor and measure the short circuit current.
Posted by schooner on August 26, 2006, 10:08 am
Nick - when you say read the short circuit current, do you mean just read
the current directly across the panel with no resistor with a multimeter?
Posted by nicksanspam on August 26, 2006, 11:38 am
Yes. I think that gives a more linear response.