High-Precision Multipass Fiber-Optic Photoacoustic Gas Analyzer Based on 2f/1f Wavelength Modulation Spectroscopy

Y Xu, H Wang, H Qi, X Zhao, M Guo, Y Zhang… - Analytical …, 2024 - ACS Publications
A self-calibration fiber-optic photoacoustic (PA) gas analyzer based on 2 f/1 f wavelength
modulation spectroscopy (WMS) is proposed, which utilizes gas and solid multipass …

High-sensitivity silicon cantilever-enhanced photoacoustic spectroscopy analyzer with low gas consumption

M Guo, K Chen, C Li, L Xu, G Zhang, N Wang… - Analytical …, 2022 - ACS Publications
A silicon cantilever-enhanced photoacoustic spectroscopy (PAS)-based trace gas analyzer
with low gas consumption is presented. A silicon cantilever-based fiber-optic Fabry–Perot (F …

On the measurement of flame temperature and emissivity based on multispectral imaging technique

S Zheng, W Cai, C Zhao, D Li, J Zhang, Q Lu - Measurement, 2022 - Elsevier
Due to the low spatial resolution of spectrometer and low spectral resolution of CCD, a multi-
wavelength radiation thermometry method employing multispectral imaging technology was …

[HTML][HTML] A fast sensor for non-intrusive measurement of concentration and temperature in turbine exhaust

R Zhang, J ** and cross-interference of absorption lines in multicomponent
gases, the simultaneous measurement of such gases via laser absorption spectroscopy …

Fiber-Optic Photoacoustic Gas Microprobe Based on Linear Spot-Type Multipass Cell

H Wang, Y Xu, J Zhang, X Zhao, Z Zhang… - Analytical …, 2025 - ACS Publications
A linear spot-type multipass cell-enhanced fiber-optic photoacoustic gas microprobe is
proposed. To further reduce the volume of the gas chamber and enhance the photoacoustic …

FPGA-accelerated distributed sensing system for real-time industrial laser absorption spectroscopy tomography at kilo-Hertz

J **a, G Enemali, R Zhang, Y Fu… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Fast and continuous data acquisition (DAQ) with well resolved spectral information is
essential for high-speed and high-fidelity measurement of thermophysical parameters of …

An FPGA-based on-chip neural network for TDLAS tomography in dynamic flames

A Huang, Z Cao, C Wang, J Wen… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
A back propagation (BP) neural network is introduced and implemented on a field
programmable gate array (FPGA) chip into tunable diode laser absorption spectroscopy …

Rapid online tomograph in non-uniform complex combustion fields based on laser absorption spectroscopy

R Zhao, B Zhou, J Zhang, R Cheng, Q Liu, M Dai… - … Thermal and Fluid …, 2023 - Elsevier
Laser absorption spectroscopy tomography is widely applied to measure the two-
dimensional distribution information in complex combustion flow fields. Rapid and accurate …

Simultaneous methane and acetylene detection using frequency-division multiplexed laser absorption spectroscopy

M Raza, K Xu, Z Lu, W Ren - Optics & Laser Technology, 2022 - Elsevier
A dual-gas optical sensor was developed using frequency-division multiplexed (FDM)
scanned-wavelength modulation spectroscopy for simultaneous detection of methane (CH …