传感器对于离焦，像散等像差模式都可以进行较为准确的测量，误差率都小于1。

The sensor can do comparatively precise measurement on the aberration of defocus, astigmatism and so on, with error rates less than 1.

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摘要 ： 针对传统的车尔尼-特纳光谱仪像散较大的缺点，基于像差理论，提出了一种改进的车尔尼-特纳光谱成像系统。

Abstract : A modified Czerny-Turner spectral imaging system was developed based on aberration theory to minimize the large astigmatism in classical Czerny-Turner spectrometers.

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