Spehro Pefhany ha scritto:

> The key to this kind of measurement is to maintain the temperature consta=
nt
> and look at the power input. This is the same idea as
> running a photodiode from a reference voltage into the virtual ground of a
> transimpedance amplifier (keeping the voltage across the diode constant)
> and thus eliminating most of the effect of the PD parallel capacitance.

I've been coming into this thought while considering the circuit.
I imagine the "left-off" sensor measuring 20=B0C, the other one measuring =

50=B0C (coupled to "something") and, as the 50=B0C drip down to, say, 45, =

you measure how much current you have to provide to make it 50 again


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Ciao, Dario
--
Cyberdyne
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