Related Experiment Video
Updated: Aug 7, 2026

Ultrafast Time-resolved Near-IR Stimulated Raman Measurements of Functional π-conjugate Systems
Published on: February 10, 2020
[The calibration of instrument response function during passive FTIR measurement]
Li-ming Zhang1, Lin Zhang, Yan Li
1Laboratory of Advanced Spectroscopy, Nanjing University of Science and Technology, Nanjing 210014, China.
Abstract:
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.
Related Concept Videos
Instrument Calibration
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
IR Spectrometers
Calibration Curves: Linear Least Squares
For data that follow a straight line, the standard method for fitting is the linear...
Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview
The ATR process begins by directing a beam...
IR Frequency Region: Fingerprint Region
The...

