Abstract：An optimized photoelectric detector will increase the precision of a spectrometer, thus indicates an important way to develop high performance spectrometer. With an eye to this, a model describing the process that spectrogram is integrated and sampled by photoelectric detector and restored after low-pass filtering is developed. Based on the model, the influence of the characteristic parameters of the detector on the spectral line in the frequency domain is analyzed and the relation between the full width half maximum (FWHM) of the spectra line and the integral interval, sampling space and sensitivity of the detector is deduced. The conclusion indicates that both the integral interval and sampling space should be 1/6 of the FWHM for a spectral line with gaussian profile as a result of compromise between accuracy and feasibility. Moreover, the critical point deciding the right situation for scanner and array detector is given. Other guide line to optimize the photoelectric detector and increase accuracy is suggested also.
杨怀栋，徐 立，陈科新，何庆声，何树荣，谭峭峰，金国藩. 光电探测器对光谱仪器精度的影响[J]. 光谱学与光谱分析, 2005, 25(09): 1520-1523.
YANG Huai-dong, XU Li, CHEN Ke-xin, HE Qing-sheng, HE Shu-rong, TAN Qiao-feng, JIN Guo-fan. The Effect of the Photoelectric Detector on the Accuracy of the Spectrometer . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(09): 1520-1523.
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