Attached is a circuit diagram of a simple photometer. I've just forgotten what I've learnt on electronics... So I'm not quite sure what are the functions of the 2 operational amplifiers in the circuit.
TP1 (I think it's controlling the voltage..?) is adjusted by the user and the readout is TP2.
It would be glad if any of you can provide some help on this question. Thanks!
TP1 (I think it's controlling the voltage..?) is adjusted by the user and the readout is TP2.
It would be glad if any of you can provide some help on this question. Thanks!