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在ＳＰＲＩＴＥ探测器的研制和生产检验中，对其调制传递函数（ ＭＴＦ） 进行测试，可以分析和评价探测器的空间分辨率。文中将线扩散函数法用于该方面的测试，描述了一般的光路安排和自动测试方案，而且考虑了测试用光学投影系统对探测器 ＭＴＦ 测试的影响，以及相应的测试、补偿方法。
SPRITE detector in the development and production testing, the modulation transfer function (MTF) test, you can analyze and evaluate the spatial resolution of the detector. In this paper, the line spread function method is used in this aspect of the test, describes the general optical path arrangement and automatic test program, but also consider the impact of the test optical projection system on the detector MTF test, and the corresponding test and compensation methods.