Ultraweak luminescence measurement circuit

Published:2011/5/13 2:51:00 Author:Nicole | Keyword: ultraweak luminescence | From:SeekIC

In the figure, PD is photodiode, the model are S1226, S1336, S2386(produced by Janpan Hamamatsu Corporation); A1 is operational amplifier, the model are AD515, OPA111, OPA128; A2 is operational amplifier OP-07; capacitance(C1)can use 10~100pF polystyrene capacitance; feedback resistance R is metal glaze resistance, the maximum can reach 10GΩ; K is low leakage relay. The circuit is in metallic shield box, the shield box is connected to circuit grouding. In the figure, W uses 10 rounds precise potentiometer.



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