Quartz-enhanced photoacoustic spectroscopy for SF6 gas matrix based on a T-shaped quartz tuning fork DOI Creative Commons
Bo Sun,

Yue Li,

Zhijian Gao

et al.

Frontiers in Physics, Journal Year: 2025, Volume and Issue: 13

Published: March 12, 2025

This paper presents the design and fabrication of a T-shaped quartz tuning fork (QTF) for quartz-enhanced photoacoustic spectroscopy (QEPAS) gas sensing systems, specifically targeting detection decomposition products in sulfur hexafluoride (SF 6 ). Through theoretical analysis simulations, geometrical parameters QTF were optimized to achieve low resonant frequency 12.46 kHz quality factor 4,587 SF matrix. The system demonstrated minimum limit (MDL) 1 ppm C 2 H matrix, with normalized noise equivalent absorption (NNEA) coefficient 2.037 × 10 −8 cm -1 W/√Hz. study successfully validates effectiveness sensitive providing promising technical solution online monitoring fault diagnosis -insulated equipment.

Language: Английский

Quartz-enhanced photoacoustic spectroscopy for SF6 gas matrix based on a T-shaped quartz tuning fork DOI Creative Commons
Bo Sun,

Yue Li,

Zhijian Gao

et al.

Frontiers in Physics, Journal Year: 2025, Volume and Issue: 13

Published: March 12, 2025

This paper presents the design and fabrication of a T-shaped quartz tuning fork (QTF) for quartz-enhanced photoacoustic spectroscopy (QEPAS) gas sensing systems, specifically targeting detection decomposition products in sulfur hexafluoride (SF 6 ). Through theoretical analysis simulations, geometrical parameters QTF were optimized to achieve low resonant frequency 12.46 kHz quality factor 4,587 SF matrix. The system demonstrated minimum limit (MDL) 1 ppm C 2 H matrix, with normalized noise equivalent absorption (NNEA) coefficient 2.037 × 10 −8 cm -1 W/√Hz. study successfully validates effectiveness sensitive providing promising technical solution online monitoring fault diagnosis -insulated equipment.

Language: Английский

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