帮我找出以下翻译内容错误：Nonlinear measurement is a key factor in determining the radiation performance of optical remote sensors and it is of great significance for the quantitative application of data obtained

Nonlinear measurement is a key factor in determining the radiation performance of optical remote sensors, and it is of great significance for the quantitative application of data obtained by optical remote sensors. Convenient and reliable measurement methods are necessary tools for determining the nonlinear correction parameters of optical remote sensors. In this project, it takes the nonlinear measurement of Si photodetector as an example to study the nonlinear features of Si photodetector under low radiation intensity, and a nonlinearity measurement device based on the luminous flux superposition method is developed. Compared with traditional nonlinear measurement devices, it has the advantages of high surface uniformity, high stability, small influence of stray light, and no wavelength drift. The main contents of the project include: It develops a nonlinear measurement device of the photoelectric detector with high accuracy and wide dynamic range on the basis of the nonlinear measurement technology of the luminous flux superposition method; According to the integrating sphere theory, the design parameters of the nonlinearity tester are calculated, and the parameters such as cascade integrating sphere, inner diameter of cue sphere, and opening diameter are determined；Explore the principles for improving the accuracy of the device. An aperture cylinder with double microporous apertures and stray light elimination is introduced to further improve the accuracy of the measurement device；The nonlinear test experiment of Si photodetector with fA~uA magnitude was carried out, the wavelength-dependent features of the nonlinear correction factors of Si photodetector were studied, and the uncertainty of the linear measurement of Si photodetector was evaluated. This project can provide the theoretical and technical support for the nonlinear measurement of detectors of large dynamic range optical instruments such as space radiation reference load in the solar reflection spectrum, and it is also of great significance for the radiation transmission in large dynamic range in the radiation measurement.

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