An ultrafast optical sensor for simultaneous detection of NH3 temperature and concentration based on ultraviolet absorption spectral redshift combined with spectral …

M Li, Q Zhou, Y Wu, J Gao, R Zhu, Q Gao, X Wu… - Sensors and Actuators B …, 2025 - Elsevier
As a renewable and carbon-free fuel with high energy density, ammonia (NH 3) is a
promising alternative to fossil fuels. Real-time detection of its temperature and concentration …

Quantitative SO2 Detection in Combustion Environments Using Broad Band Ultraviolet Absorption and Laser-Induced Fluorescence

W Weng, M Aldén, Z Li - Analytical chemistry, 2019 - ACS Publications
Spectrally resolved ultraviolet (UV) absorption cross sections of SO2 in combustion
environments at temperatures from 1120 to 1950 K were measured for the first time in well …

Study on temperature effects of broadband absorption spectroscopy based on Doppler broadening combined with a multilinear shape superposition

M Li, J Gao, Y Wu, R Zhu, Q Gao, Y Zhang - Optics Letters, 2023 - opg.optica.org
In this study, we determine the relationship between the broadband absorption spectroscopy
and temperature using Doppler broadening combined with a multilinear shape …

mL-level low gas consumption PAS sensor for dual gases CH4/C2H2 detection based on an optimized TT-type resonator

F Wang, L Fu, J Zhang, J Sun, Z Han, S Pang, Q Xue… - Measurement, 2025 - Elsevier
The miniaturization of photoacoustic (PA) cell is an important and practical direction for the
area of photoacoustic spectroscopy (PAS) trace gas detection to save sample consumption …

A TDLAS Sensor for Simultaneous Measurement of Temperature and C2H4 Concentration Using a Differential Absorption Scheme at High Temperature

T Zhang, G Zhang, X Liu, G Gao, T Cai - Frontiers in Physics, 2020 - frontiersin.org
Ethylene (C2H4) concentration and temperature is simultaneously measured in high
temperature environments using a differential absorption scheme combined with a …

Temperature measurements in heated gases and flames using carbon monoxide femtosecond two-photon laser-induced fluorescence

B Li, D Zhang, C Brackmann, L Han, Z Feng… - Sensors and Actuators A …, 2023 - Elsevier
Nonintrusive temperature measurement is crucial in combustion research. Here, we propose
a thermometric technique based on femtosecond two-photon laser-induced fluorescence of …

[HTML][HTML] 气体光学检测技术及其应用研究进展

沈英, 邵昆明, 吴靖, 黄峰, 郭禹泽 - 光电工程, 2020 - cn.oejournal.org
气体的快速识别与检测已成为国内外研究者迫切解决的重大问题. 随着光学技术的快速发展,
气体光学检测技术以其高效率, 多组分, 高灵敏度等显著优势而成为气体检测领域的重要研究 …

Research on CO2 detection system in refrigerated compartment of agricultural products based on TDLAS technology

R Zhang, MN Guo, YZ Wang, HX Yang, B Hu, HF Guo… - Procedia CIRP, 2019 - Elsevier
In the process of transporting refrigerated vehicle, the respiration of agricultural products
after collection produces CO 2 and other gases, resulting in pollution, deterioration, and …

[PDF][PDF] 超灵敏快速石英增**光声传感关键技术及应用 (特邀)

董磊, **文菲, 武红鹏, 马维光, 张雷, 尹王保… - Acta Optica …, 2025 - researching.cn
摘要概述了**年来基于石英增**光声光谱(QEPAS) 实现超灵敏快速痕量气体传感的关键技术及
其应用. 首先, 讨论了不同类型声学腔与石英音叉(QTF) 的耦合机制, 以及它对提高QEPAS …

[PDF][PDF] Optical gas detection: key technologies and applications review

S Ying, S Kunming, W **g, H Feng… - Opto-Electronic …, 2020 - researching.cn
Rapid identification and detection of gases is a major problem that needs to be solved
urgently by researches from worldwide. With the development of optical technology, optical …