Embedded spectrum and radiation real-time calibration device

Abstract

The invention discloses an embedded spectrum and radiation real-time calibration device. The device comprises a line-array light source component and a field stop component. The line-array light source component is composed of a light source 1, a parabolic reflector 2, a coupling lens 3 and optical fiber 4. The design of the field stop component 5 allows imaging beams and calibration beams to be capable of entering a subsequent light path of an imaging spectrometer and finally being converged on an area array detector, calibration data are obtained when the imaging spectrometer acquires images of each frame, thus realizing complete real-time spectrum and radiation calibration, meanwhile, the device is embedded inside the imaging spectrometer to meet the light and miniaturization design requirements of instruments.

Description

Embedded spectrum and radiation real-time calibration device Technical field The invention belongs to the field of spectroscopy and radiation measurement, and specifically refers to an embedded spectroscopy and radiation real-time calibration device, which is integrated in the spectrometer and simultaneously meets the requirements of imaging spectrometer spectrum and radiation real-time calibration. Background technique The imaging spectrometer obtains the target's spectral information with high spectral resolution while acquiring the target spatial information, so as to realize the identification of the ground object. It is used in the national economy such as land resource survey, agriculture and forestry, environment and disaster monitoring, digital city, etc. And military applications such as false target recognition are becoming more and more extensive. With the improvement of the level of area array detectors and spectroscopic devices, staring imaging spectrometers have ...

AI Technical Summary

Problems solved by technology

The internal calibration device of the instrument usually uses sunlight or a calibration lamp as the light source. The internal calibration device of quite a few instruments currently in operation only has the function of radiation calibration, and most of them cannot perform real-time calibration; in addition, for deep space exploration spectroscopy instruments For example, the calibration device is required to be light and miniaturized

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