Small Irradiation Measure Circuit

Published:2011/4/24 9:08:00 Author:Christina | From:SeekIC

The circuit of figure (a) uses the photodiode, the irradiation intensity is about 0.01W/c㎡, there is no need to use the other devices such as the chopper without current compensation, so this circuit can be used in the low-level radiation conditions, particularly suitable for the low-level radiation diode circuit. Figure (b) is the spectral sensitivity curve of photodiode BPX94, when the wavelength is about 800nm, the maximum sensitivity is about 0.5A/W.



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