Abstract
A portable infrared spectral radiance measurement apparatus without the cooling
based on PbSe detectors is designed to measure the spectral radiance of the object in
the wavelength range from 2.1 to 4.1 µm. Cores Luxell 256 module is applied which
integrates 256 pixel line array PbSe detectors, amplifiers, analog-to-digital
convertors, and Universal Serial Bus output interface. Electric aperture is applied to
eliminate the effect of temperature drift. Wavelength and response function of the
apparatus is calibrated with the blackbody. Results show that the wavelength resolution
is 10 nm. The relative error of measured spectral radiance is below 2.3%.
© 2015 Chinese Laser Press
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