Multispectral ultraviolet sensitivity detection system and method

Abstract

The invention discloses a multispectral ultraviolet sensitivity detection system and a detection method. The detection system comprises a light-emitting device, an attenuation device, a detection device and a verification processing system. The requirement for the experiment environment is low. Ultraviolet test signals with uniform and stable signal intensity can be generated, the signal intensitycan be accurately adjusted. The measurement result can be metered and traced. According to the invention, on one hand, sensitivity detection can be carried out on a single device, so as to evaluate the ultraviolet sensitivity performance of the device; further, sensitivity detection can be carried out on different devices to calibrate and unify the photon number, which promotes the standardization of ultraviolet detection; besides, the spectral analysis function of the system can detect ultraviolet sensitivity of different wavebands to obtain the sensitivity spectral curve of a device; the detection performance is more comprehensive; and the detection requirements of sensitivity of all ultraviolet imagers on the market are met.

Description

technical field [0001] The invention belongs to the detection field, in particular to a multi-spectral ultraviolet sensitivity detection system and a detection method. Background technique [0002] UV light sensitivity is the minimum UV light intensity that the UV imager can respond to. Ultraviolet light sensitivity is one of the important performances of the ultraviolet imager. The strength of ultraviolet light sensitivity is related to the response of the equipment to the corona signal. Generally, the higher the ultraviolet sensitivity, the better the response of the equipment to the corona signal. The more photons are received. [0003] Detection of the ultraviolet sensitivity of the ultraviolet imager requires an extremely weak signal, which is difficult to generate and control. Quantitative assessment of UV light sensitivity. [0004] At present, there are plans to use the combination of light source and attenuator to generate test signals for ultraviolet light sensi...

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Problems solved by technology

[0010] (1) The sensitivity detection scheme of the ultraviolet imager is limited. On the one hand, the sensitivity detection of ultraviolet light requires the detection signal to reach the photon level, which requires high detection light sources and measuring instruments, which are difficult to achieve with ordinary light sources and measuring instruments;

[0011] (2) In the existing schemes, some optical attenuation sheets are used for signal attenuation. The attenuation sheets have a certain attenuation coefficient, but the attenuation amplitude cannot be adjusted continuously. The actual operation increases the complexity of the operation and the experiment time. There are shortcomings such as uncertain light attenuation and uneven distribution of l

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