High spectral resolution halogen tungsten lamp spectral irradiance measuring device and method thereof

Abstract

The invention relates to the technical field of spectral radiation metering, in particular to a high spectral resolution halogen tungsten lamp spectral irradiance measuring device and a high spectralresolution halogen tungsten lamp spectral irradiance measuring method thereof. The high spectral resolution halogen tungsten lamp spectral irradiance measuring device comprises a measuring mechanism,a monitoring mechanism, a positioning and moving mechanism and an upper computer, wherein the measuring mechanism comprises a standard lamp channel used for accommodating a standard lamp and a plurality of to-be-measured halogen tungsten lamp channels used for accommodating halogen tungsten lamps; the monitoring mechanism comprises a spectrum acquisition system; and the spectrum acquisition systemcomprises an integrating sphere and a spectrograph. According to the high spectral resolution halogen tungsten lamp spectral irradiance measuring device and the high spectral resolution halogen tungsten lamp spectral irradiance measuring method, the plurality of halogen tungsten lamps are sequentially arranged on an optical platform, the integrating sphere and the spectrograph form the spectrum acquisition system, the spectrum acquisition system reciprocates by means of the positioning and moving mechanism, and the spectrum acquisition system sequentially measures the spectral irradiance of each halogen tungsten lamp; and the advantages of high spectral resolution and high measurement efficiency are achieved.

Description

technical field [0001] The invention relates to the technical field of spectral radiometry, in particular to a device and method for measuring the spectral irradiance of a tungsten halogen lamp with high spectral resolution. Background technique [0002] In the field of climate research, studies on issues such as the Earth's radiation balance, global warming, and disaster prediction require stable remote sensing data spanning decades. According to research, only when the uncertainty of the on-orbit calibration of the reflected solar spectrum is less than 1% can the demand be met. However, at this stage, the on-orbit radiation calibration of domestic and foreign satellites uses standard lights plus diffuse reflectors or sunlight diffuses. Traditional means such as reflectors; affected by the launch process and space environment, these standards will drift or attenuate, and the radiation scale and the reference traceability chain will be broken, resulting in the inability to o...

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Problems solved by technology

[0004] At present, the spectral irradiance of tungsten-halogen lamps is usually measured by a channel-type filter radiometer. Since the filter radiometer is a multi-spectral instrument, it can only measure the spectral irradiance of several bands, which cannot meet the spectral attenuation of tungsten-halogen lamps. Laws and research needs of hyperspectral reconstruction algorithms

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