Ai Suman
1,2
An Huang
2
Hao Deng
2
Rantong Niu
2
Ruifeng Kan
2
Zhenyu Xu
2*The final, formatted version of the article will be published soon.
ORIGINAL RESEARCH article
Front. Phys.
Sec. Optics and Photonics
Volume 12 - 2024 |
doi: 10.3389/fphy.2024.1488578
This article is part of the Research Topic Advancements in Diode Laser Spectroscopy for Life Science Research, Environmental Monitoring and Industrial Applications View all articles
A wide-range temperature sensor with a single diode laser based on H 2 O absorption spectra near 1850.5nm
Provisionally accepted- 1 University of Science and Technology of China, Hefei, China
- 2 Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences (CAS), Hefei, Anhui Province, China
We have developed a compact sensor utilizing a tunable diode laser near 1850.5 nm to measure H₂O absorption for wide-range temperature diagnostics. The sensor's performance was experimentally evaluated in a tube furnace at temperatures ranging from 600 to 1800 K and pressures from 3.5 to 103 KPa, showing a relative error between the measured and set temperatures of -2% to 3.5%. The numerical simulations confirmed the sensor's suitability for temperature measurements between 500 and 2500 K, with the accuracy of absorbance extraction being a critical factor. The above results suggest that the sensor is highly effective for temperature measurement across a broad range and holds potential for applications in aerospace and industrial combustion diagnostics.
Keywords: temperature sensor, 1850.5nm diode laser, Tunable diode laser absorption spectroscopy, wide-range temperature measurement, good sensing performance
Received: 30 Aug 2024; Accepted: 15 Nov 2024.
Copyright: © 2024 Suman, Huang, Deng, Niu, Kan and Xu. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Zhenyu Xu, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences (CAS), Hefei, 230031, Anhui Province, China
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