Posted by Fred Perry
on January 29, 2008, 10:54:54, in reply to "Re: Using EryF Diode for UVI meter"
71.243.113.3
For calibration the best and less expensive approach is to use the
natural sun:
1.) build up the prototype
2.) wait for noon and note down the displayed (arbitrary) value
3.) ask your local Meteorologic Station for max. UV-Index of the day
4.) calibrate the unit accordingly
5.) go to 1.) the next day and re-calibrate, try to get different
conditions (cloudy & sunny)
That must be done/repeated until the error is acceptable.
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