التفاصيل البيبلوغرافية
| العنوان: |
Sensitive absorption measurements of hydrogen sulfide at 1.578 μm using wavelength modulation spectroscopy. |
| المؤلفون: |
Xia Hua, Wu Bian, Zhang Zhi-Rong, Pang Tao, Sun Peng-Shuai, Cui Xiao-Juan, Han Luo, Wang Yu, Dong Feng-Zhong |
| المصدر: |
Chinese Physics B; Mar2015, Vol. 24 Issue 3, p1-1, 1p |
| مصطلحات موضوعية: |
HYDROGEN sulfide, MODULATION spectroscopy, ABSORPTION spectra, SEMICONDUCTOR lasers, TRACE gases |
| مستخلص: |
Sensitive detection of hydrogen sulfide (H2S) has been performed by means of wavelength modulation spectroscopy (WMS) near 1.578 μm. With the scan amplitude and the stability of the background baseline taken into account, the response time is 4 s for a 0.8 L multi-pass cell with a 56.7 m effective optical path length. Moreover, the linearity has been tested in the 0–50 ppmv range. The detection limit achievable by the Allan variance is 224 ppb within 24 s under room temperature and ambient pressure conditions. This tunable diode laser absorption spectroscopy (TDLAS) system for H2S detection has the feasibility of real-time online monitoring in many applications. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
