Abstract
A new approach to the calibration and measurement of extended sources was introduced in the infrared integrating radiometer BUR. Major factors influencing the precision of the BUR were analysed. Based on the Planck principle, it is deduced that the BUR output voltage is the result of a constant and a monotonic increasing function of radiation luminance from the extended sources. The increasing function can be calculated, thus one standard measurement can determine the constant and complete the calibration. The result of measurement of the standard extended source showed that the relative error of the instrument was less than 5%.
| Original language | English |
|---|---|
| Pages (from-to) | 749-753 |
| Number of pages | 5 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 23 |
| Issue number | 6 |
| Publication status | Published - Dec 2003 |
Keywords
- Extended source
- Infrared integrating radiometer
- Measurement and calibration