Analysis of carbon sink efficiency of trees based on gas photoacoustic spectroscopy detection DOI

Xinxin Wang,

Zhiying Wu, Ke Chen

et al.

Infrared Physics & Technology, Journal Year: 2024, Volume and Issue: unknown, P. 105630 - 105630

Published: Nov. 1, 2024

Language: Английский

Carbon Black Absorption Enhanced Fiber-Optic Photoacoustic Gas Sensing System with Ultrahigh Sensitivity DOI
Xiao Han, Chenxi Li, Hongchao Qi

et al.

Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

A highly sensitive trace gas sensing system based on carbon black absorption enhanced photoacoustic (PA) spectroscopy (PAS) is reported. sheet and a fiber-optic cantilever microphone (FOCM) are integrated to form spectrophone (FOCS). The concentration obtained by measuring the acoustic wave amplitude generated sheet, which absorbs laser passing through interest gas. Due higher rate of than that flake graphite, excited solid-state PA pressure enhanced. ability FOCS detect weak sound waves related power length. Therefore, an Erbium-doped optical fiber amplifier multipass cell also used increase tested gas, combines with FOCM achieve multimechanism enhancement performance. Different from traditional PAS detection systems, this noncontact measurement solution, not only effectively avoids flow noise but makes element immune damage corrosive gases. experimental results show sensitivity about four times using graphite as light-absorbing element. When average time 100 s, minimum limit acetylene 0.31 ppb. normalized equivalent coefficient designed achieved be 7.1 × 10-10 cm-1·W·Hz-1/2.

Language: Английский

Citations

2
Highly-sensitive photoacoustic gas sensor with dual resonant modalities for simultaneous NOx detection DOI
Zhiyu Feng, Chaotan Sima, Tailin Li

et al.

Sensors and Actuators B Chemical, Journal Year: 2025, Volume and Issue: unknown, P. 137596 - 137596

Published: March 1, 2025

Language: Английский

Citations

1
Fast-responding ethanol sensor with extremely low detection limit: Influence of Pt film thickness on gas sensing properties DOI Creative Commons

Jae Han Chung,

Eunsol Lee,

Junho Hwang

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162618 - 162618

Published: Feb. 1, 2025

Language: Английский

Citations

0
A rapid detection of sewage treatment parameters based on multi-band photoacoustic spectroscopy DOI
Zhiying Wu,

Nuan Shao,

Z Zhang

et al.

Optics & Laser Technology, Journal Year: 2025, Volume and Issue: 188, P. 112937 - 112937

Published: April 10, 2025

Language: Английский

Citations

0
Editorial for the Applications and Challenges for Gas Sensors DOI Creative Commons

Zhaohui Lei,

Yinglin Wang, Pengfei Cheng

et al.

Micromachines, Journal Year: 2025, Volume and Issue: 16(5), P. 493 - 493

Published: April 23, 2025

Gas sensors, widely used in various fields, are devices to detect the presence of a specific gas within certain area or continuously measure concentration components [...]

Language: Английский

Citations

0
Analysis of carbon sink efficiency of trees based on gas photoacoustic spectroscopy detection DOI

Xinxin Wang,

Zhiying Wu, Ke Chen

et al.

Infrared Physics & Technology, Journal Year: 2024, Volume and Issue: unknown, P. 105630 - 105630

Published: Nov. 1, 2024

Language: Английский

Citations

0