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How to use a photodiode to measure light intensity Arduino? 

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In order that sensitivities similar to those of photomultipliers can be achieved, intensified photodiode arrays are needed.
The calculations indicate that greater control over the spectral response of the photodiode can be realised for a backside-illuminated photodiode, compared to the normal frontside illuminated structure of current Camera on a CMOS chip technology.
Therefore, for precise measurements of semiconductor photodiode photocurrents, the sensing terminal of an electrometer should be connected to the rear electrode of a photodiode to avoid any contribution from the photoemission current.
Thus, it is very important that the light intensity in a photoreactor is evaluated correctly.
The results confirm that the photodiode exhibits a photoconducting behavior.
The method offers long-term stability of the photodiode performance.
Proceedings ArticleDOI
A.L. Chizh, S.A. Malyshev 
16 Oct 2000
7 Citations
The theoretical data well correspond to the measured characteristics of the photodiode.

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