[The calibration of instrument response function during passive FTIR measurement].
In order to obtain infrared spectral radiance distribution of some infrared sources, such as spectral radiant flux density, spectral radiant intensity, spectral radiance and spectral irradiance, the instrument response function under different conditions must be known. In the present paper, the calibration of instrument response function during passive FTIR measurement has been discussed. The experimental results illustrate that under different experimental conditions, the instrument response function varies not only with the temperature of the blackbody but also with the signal amplitude received by the infrared instrument. So, during passive FTIR measurement, the temperature and the emission signal amplitude of the source must be observed carefully in order to get satisfactory instrument response function.
Zhang
Li-ming
LM
Laboratory of Advanced Spectroscopy, Nanjing University of Science and Technology, Nanjing 210014, China.
Zhang
Lin
L
Li
Yan
Y
Wang
Xiao-fei
XF
Liu
Bing-ping
BP
Ren
Yi-bo
YB
Wang
Jun-de
JD