The system can be used to measure the voltage responsivity and detectivity of infrared detector at different modulation frequency with rapid speed and high accuracy, it meets the need of measurement.

该系统可以自动测试不同调制频率下红外探测器的电压响应率和探测率，能够快速准确地完成测试任务，满足了测试要求。

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In this paper the influences of ambient temperature and bias voltage on avalanche photodiodes' (APDs') responsivity are analysed, and the ways of decreasing the influences are discussed.

本文就如何减小温度对雪崩光电二级管响应度的影响进行了研究。

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