在惯性约束聚变（ICF）实验研究中，科学级CCD常和光谱仪、条纹相机等诊断设备组合进行冲击波等物理过程的时间、空间方面的诊断研究。非线性作为CCD一个非常重要的性能参数，在实验的后处理过程中有着相当重要的作用，实验分别采取固定曝光时间，改变光源的出射功率密度、固定光源的输出功率密度和改变CCD的曝光时间两种方案对TEK 512×512DB CCD 的非线性特性进行测试，计算得到两种实验方案下该CCD的非线性度分别为0.595%和0.508%，并通过对各种因素的评估得到第一种标定方案为最佳，为科学级CCD的性能参数自动测试平台的建立提供参考。

In inertial confinement fusion (ICF) experimental studies, scientific-grade CCD coupled with streak camera is widely used in time and space diagnosis experiment with physical processes such as shock wave. As a significant property of the scientific grade CCD, nonlinearity plays an important role in experimental dealing. The experiment tests the nonlinearity property of the TEK 512×512DB CCD with the two schemes respectively: that the exposure time is fixed, the power density of the RS-5B is varied; power density is fixed, the exposure time is varied, and it shows the nonlinearity of the CCD is 0.595% and 0.508% respectively, meanwhile, the two experimental scheme are evaluated by analyzing kinds of factors, indicating that the first scheme is better, which provides the reference for establishment of automated testing platform.