A mini-resonant photoacoustic sensor based on a sphere-cylinder coupled acoustic resonator for high-sensitivity trace gas sensing

• DOI: 10.1016/j.pacs.2024.100595
• Publication Date: 2024-02-09T17:29:55Z
• Authors: Guojie Wu; Yongjia Zhang; Zhenfeng Gong; Yeming Fan; Jiawei Xing; Xue Wu; Junsheng Ma; Wei Peng; Qingxu Yu; Liang Mei
• Keywords: Trace gas; TRACE (psycholinguistics)

This paper reports a mini-resonant photoacoustic sensor for high-sensitivity trace gas sensing. The primarily contains sphere-cylinder coupled acoustic resonator, cylindrical buffer chamber, and fiber-optic sensor. field distributions of this the conventional T-type resonant have been carefully evaluated, showing that first-order resonance frequency present is reduced by nearly half compared to volume developed cavity only about 0.8 cm