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Aiming at the key parameter measurement bottlenecks and urgent needs of high-resolution optical loads such as satellite panchromatic multi-spectral cameras, full-spectrum multi-modal imaging spectrometers, and high-resolution imaging spectrometers, a set of wide-spectrum super-large area array optical loads is designed The device was calibrated for key parameters of absolute spectral responsivity, and the measurement uncertainty of the device was evaluated. This device is mainly composed of a broad spectrum light source, monochromator, optical system, standard radiometer, two-dimensional control translation stage, scanning control system, data acquisition and integrated control system. The measurement range is a wide spectral band, 0.4μm～1.6μm, the measurement resolution can reach 10k×10k, and the measurement uncertainty of absolute spectral radiance responsivity is 3% (k=2) [radiance range: 0.1W/(sr∙m2)～10W/(sr∙ m2)]. Establish a set of absolute spectral responsivity calibration device for wide-spectrum super-large area array optical load to solve the technical problem that the key parameters of wide-spectrum high-resolution optical cameras cannot be calibrated in the process of development, debugging, scientific research and production, and provide high-resolution earth observation for my country Provide services for quantitative needs in engineering, military reconnaissance, marine monitoring, and meteorological monitoring.
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