Fengxiang MA, Yue ZHAO, Xinyu ZHAO, Nan WANG, Taiyun ZHU, Chen HANG, Ke CHEN. High Sensitivity Detection Technology of SF6 Characteristic Decomposition Component SO2 Based on UV Photoacoustic Spectroscopy[J]. Acta Photonica Sinica, 2023, 52(3): 0352115
- Acta Photonica Sinica
- Vol. 52, Issue 3, 0352115 (2023)
Fig. 1. Schematic diagram of photoacoustic spectroscopy detection principle
Fig. 2. Schematic diagram of the absorption lines of SO2 in the UV band and UV-LED spectral distribution
Fig. 3. Schematic diagram of SO2 detection system based on UV photoacoustic spectroscopy
Fig. 4. The amplitude-frequency response of the measured photoacoustic spectroscopy system
Fig. 5. Relationship between photoacoustic response and SO2/SF6 mixed gas concentration
Fig. 6. Allan-Werle deviation analysis results. Inset：measured system noise
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