At 02:24 AM 6/24/2006 -0400, you wrote:


>With a fair bit of work I was able to kludge together an equation that I
>think describes the final voltage vs. lux graph accurately with gnuplot.
>Not exactly the most linear of things, but at least I can see that my
>intuitive choice of 1k isn't that great a pick... If I got everything
>right, something more like 220ohms would still give me sensitivity at
>both ends, 1k ends up at a zero slope long before the CdS saturates.

Your worst case power dissipation in the LDR would be around 30mW, which
might be enough to adversely affect a small photocell*.

* yes

>Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
->>Test equipment, parts OLED displys http://search.ebay.com/_W0QQsassZspeff


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