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讨论了使用频谱仪和微机系统测量红外探测器频谱特性的方法,采用频谱仪的扫频装置和大功率GaAs发光二极管作为调制光源,快速测量了红外探测器的噪声谱频N(f),响应率频谱R(f)和探测率频谱D~*(f)。复盖频率范围为3Hz～200kHz。
The method of measuring the spectral characteristics of infrared detectors by using spectrum analyzer and microcomputer system is discussed. The frequency spectrum of the infrared detector N (f) is rapidly measured by using the frequency sweeping device of the spectrometer and the high power GaAs LED as the modulating light source. The response Rate Spectrum R (f) and Rate Spectrum D ~ * (f). Cover the frequency range of 3Hz ~ 200kHz.