Affiliation:
1. Anhui Institute of Optics and Fine Mechanics
2. University of Chinese Academy of Sciences
3. Anhui University of Science & Technology
4. Anhui University
Abstract
This paper investigates a method for measuring SO2 concentration using Fabry–Perot interferometer correlation spectroscopy. In this method, the experimental system is designed as a separated beam, with the beam entering the F–P cavity at two incidence angles simultaneously to match the peak and valley positions of the SO2 absorption cross-section. The system achieves a 2σ detection limit of 28.2 ppm·m(15 cm) at a sampling frequency of 10 Hz. An outfield comparison experiment with the differential optical absorption spectroscopy method shows good agreement for the simultaneous measurement of SO2 concentration from sulfur combustion, with a correlation coefficient of R2 = 0.93. This study introduces a non-dispersive, highly accurate, and fast gas detection technique.
Funder
National Natural Science Foundation of China
Key Technologies Research and Development Program of Anhui Province
Subject
Atomic and Molecular Physics, and Optics
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献