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

Zehao Li; Chunyong Yang; Zihao Tang; Miaomiao Peng; Wenjun Ni; Lianbo Guo; Jin Hou; Shaoping Chen

doi:10.3788/CJL202148.0111002

Chinese Journal of Lasers, Volume. 48, Issue 1, 0111002(2021)

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

Zehao Li¹, Chunyong Yang^1、*, Zihao Tang¹, Miaomiao Peng¹, Wenjun Ni², Lianbo Guo³, Jin Hou¹, and Shaoping Chen¹

¹Hubei Key Laboratory of Intelligent Wireless Communications, College of Electronics and Information Engineering, South-Central University for Nationalities, Wuhan, Hubei 430074, China

²Institute of Electrical and Electronics Engineers,Nanyang Technological University, Singapore 639798, Singapore

³Wuhan National Laboratory for Optoelectronics, Huazhong Universtiy of Science & Technology, Wuhan,Hubei 430074, China;

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Figures & Tables(12)

Fig. 1. Schematic of curved body beam waist photoacoustic cell

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Fig. 2. Two dimensional axisymmetric physical model of photoacoustic cell

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Fig. 3. Acoustic modal simulation cloud images of curved body beam waist photoacoustic cell. (a) The first mode (197Hz); (b) the second mode (2459Hz); (c) the third mode (3050Hz); (d) the fourth mode (3503Hz); (e) the fifth mode (3842Hz); (f) the sixth mode (5161Hz) ; (g) the seventh mode(6380Hz); (h) the eighth mode (6923Hz)

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Fig. 4. Frequency response curve of photoacoustic cell

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Fig. 5. Simulation curve of photoacoustic cell’s fine frequency response

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Fig. 6. Sound pressure distribution curves of photoacoustic cell generatrix

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Fig. 7. Influences of resonant cavity length L_r and semiminor axis length a on resonance frequency and sound pressure amplitude. (a) Semiminor axis length is 2.5mm; (b)semiminor axis length is 5mm; (c)semiminor axis length is 7.5mm; (d)resonant cavity length is 50mm; (e)resonant cavity length is 100mm; (f)resonant cavity length is 150mm

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Fig. 8. Effects of eccentricity e on resonance frequency and sound pressure amplitude

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Fig. 9. Evolution of frequency response curve of curved beam waist photoacoustic cell. (a)e→+∞; (b)e=20; (c)e=10; (d)e=5

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Table 1. Basic parameters of curved body beam waist photoacoustic cell
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Table 1. Basic parameters of curved body beam waist photoacoustic cell
Buffer chamber diameter D_b/mm Buffer cavity length L_b/mm Resonant cavity length L_r/mm Semi-short axis length a/mm Eccentricity e
40 50 100 2.5 7.14

Table 2. Gas parameters of N₂ under atmospheric conditions^[23] (T=293 K, p=1013 hPa)

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Table 2. Gas parameters of N₂ under atmospheric conditions^[23] (T=293 K, p=1013 hPa)

Parameter	Value
Density/(kg·m^-3)	1.15
Speed of sound/(m·s^-1)	343
Dynamic viscosity/(Pa·s)	1.76×10^-5
Thermal conductivity/(W·m^-1·K^-1)	2.56×10^-2
Constant volume specific heat capacity/(J·kg^-1·K^-1)	0.741×10³
Constant pressure specific heat capacity/(J·kg^-1·K^-1)	1.038×10³

Table 3. Basic parameters of photoacoustic cell
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Table 3. Basic parameters of photoacoustic cell
Buffer chamber diameter D_b/mm Buffer cavity length L_b/mm Resonant cavity length L_r/mm Semi-short axis length a/mm Eccentricity e
40 50 100 2.5 Inf.

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Zehao Li, Chunyong Yang, Zihao Tang, Miaomiao Peng, Wenjun Ni, Lianbo Guo, Jin Hou, Shaoping Chen. Design and Performance Analysis of Curved Body and Girdled Waist Photoacoustic Cells[J]. Chinese Journal of Lasers, 2021, 48(1): 0111002

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Paper Information

Category: spectroscopy

Received: Jul. 7, 2020

Accepted: Aug. 31, 2020

Published Online: Jan. 13, 2021

The Author Email: Yang Chunyong (cyyang@mail.scuec.edu.cn)

DOI:10.3788/CJL202148.0111002

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Basic parameters of curved body beam waist photoacoustic cell

Table 1. Basic parameters of curved body beam waist photoacoustic cell

Table 2. Gas parameters of N2 under atmospheric conditions[23] (T=293 K, p=1013 hPa)

Table 2. Gas parameters of N2 under atmospheric conditions[23] (T=293 K, p=1013 hPa)

Table 3. Basic parameters of photoacoustic cell

Table 3. Basic parameters of photoacoustic cell

Table 2. Gas parameters of N₂ under atmospheric conditions^[23] (T=293 K, p=1013 hPa)

Table 2. Gas parameters of N₂ under atmospheric conditions^[23] (T=293 K, p=1013 hPa)