Design and Performance Analysis of Curved Body and Girdled Waist Photoacoustic Cells

Li, Zehao; Yang, Chao; Tang, Zihao; Miaomiao, Peng; Ni, Wenjun; Guo, Lianbo; Hou, Jing; Chen, Shaoping

doi:10.3788/cjl202148.0111002

Cited by 3 publications

(2 citation statements)

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“…Cheng et al 49 optimized the two ends of the resonant cavity of the H-type photoacoustic cell into a flared mouth shape, which increased the quality factor of the photoacoustic cell by 48.9% and the cell constant by 34.4%. Li et al 50 designed the resonant cavity as a hyperbolic curved body waist type with a busbar eccentricity of five, and the quality factor of the photoacoustic cell was 75.9, and the resonant frequency decreased and the photoacoustic signal increased as the eccentricity increased. Wolff et al 51 optimized an "hourglass" type photoacoustic cell, which reduced the resonant frequency by 18% and enhanced the signal by 13.3% compared to the H-type photoacoustic cell.…”

Section: Longitudinal Photoacoustic Cellmentioning

confidence: 99%

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Photoacoustic Spectroscopy Gas Detection Technology Research Progress

Xiong,

Yin,

Wang

et al. 2023

Appl Spectrosc

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Photoacoustic spectroscopy (PAS) can be utilized as an ultrasensitive gas detection method. The basic principles of gas detection using PAS are discussed in this paper. First, the basic instrumentation for a PAS gas detection system is introduced focusing on the photoacoustic cell. The discussion includes non-resonant photoacoustic cells and the different types of resonant photoacoustic cells, including the longitudinal photoacoustic cell, the Helmholtz photoacoustic cell, the T-type photoacoustic cell, and the high-frequency resonant photoacoustic cell. The basic working principles of each of these, cells as well as the advantages and disadvantages of photoacoustic cells are discussed, and the development of newer types of photoacoustic cells in recent years is outlined in detail. This review provides detailed reference information and guidance for interested researchers who would like to design and build advanced photoacoustic cells for gas detection.

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Section: Longitudinal Photoacoustic Cellmentioning

confidence: 99%

Section: Longitudinal Photoacoustic Cellmentioning

confidence: 99%

Photoacoustic Spectroscopy Gas Detection Technology Research Progress

Xiong,

Yin,

Wang

et al. 2023

Appl Spectrosc

View full text Add to dashboard Cite

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Portable 3D-printed umbrella photoacoustic cell for trace gas detection

et al. 2023

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We purpose a novel portable 3D-printed umbrella photoacoustic (PA) cell, to the best of our knowledge, for trace gas detection. Its simulation and structural optimization were performed via finite element analysis using COMSOL software. We investigate the factors affecting the PA signals using both experimentation and theory. By measuring methane, a minimum detection limit of 5.36 ppm (signal-to-noise ratio, 223.8) with a lock-in time of 3s was achieved. The proposed miniature umbrella PA system indicates the potential for a miniaturized and low-cost trace sensor.

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