Abstract: The influence of reverse bias voltage and light intensity on the linearity, position precision and response time of position sensitive detector (PSD) is described from the view of engineering application in this paper. And a series of verifying experiments are carried, the results proved that the reverse bias voltage and the working intensity of laser have little influence of linearity of PSD, but their influence on the bias of the output signal of PSD can't be neglected. At the end of this paper some conclusions are summarized.!4
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