| Noise Equivalent Differential Temperature of Passive FTIR Sensor System |
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Young-Il Kang, Byeong-Hwang Park, Myung-Jin Choi, Dea-Sik Hong, Soo Choi, Dong-Hwan Kim, Do-Hyun Park |
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| 수동형 퓨리에변환 적외선 분광기의 잡음등가온도지수 |
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강영일, 박병황, 최명진, 홍대식, 최수, 김동환, 박도현 |
1국방과학연구소
2두산DST R&D센터
3무리기술(주) 전자광학연구소 |
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| Abstract |
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The passive open-path Fourier-Transform-Infrared system was implemented for the toxic gas monitoring. Noise Equivalent Differential Temperature(NEDT) was investigated as a system performance evaluation figure and analyzed numerically with the designed parameters. Calculated NEDT was compared with the experimental value in the wavelength region of $700{sim}1400cm^{-1}^$. The minimum detectable gas concentration was estimated from the obtained NEDT at the absorption wavelength of $SF_6$. |
| Key Words:
NEDT, Fourier Transform Spectroscopy, Blackbody, Radiometer Calibration |
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