Skip to main content

ORIGINAL RESEARCH article

Front. Phys.
Sec. Optics and Photonics
Volume 13 - 2025 | doi: 10.3389/fphy.2025.1526350
This article is part of the Research Topic Advanced High Power Solid-State Laser Technology, Volume II View all articles

A Compact and Stable Diagnostic System for Major Species Concentration and Temperature in Combustion Flow Field by Raman Scattering

Provisionally accepted
Ke Wang Ke Wang 1*Zhenrong Zhang Zhenrong Zhang 1*Sheng Wang Sheng Wang 1*Yamin Wang Yamin Wang 1*Yangyang Liu Yangyang Liu 1*Haolong Wu Haolong Wu 1*Jun Shao Jun Shao 1*Jingfeng Ye Jingfeng Ye 1*Jianghuai Cai Jianghuai Cai 2*
  • 1 Northwest institute of Nuclear Technology, Xi'an, China
  • 2 Xiamen University, Xiamen, Fujian Province, China

The final, formatted version of the article will be published soon.

    A compact and stable diagnostic system is established to measure parameters such as major species concentration and temperature in the combustion flow field by Raman Scattering. The engine brings huge vibration.However, the prototype works stably and has an uncertainty level below 5%.A standard Hencken burner validates the results. From our perspective, the prototype represents a novel practical application of the mature Raman spectroscopy technology, warranting interaction with engineering experts in relevant fields. With the half-wave plate, the background and signal are distinguished. The orthogonality and angle between the excitation and signal contribute to a good Signal-to-Noise Ratio (SNR). The compactness of the device is fully considered. The device exhibits good resistance to adverse environments. The system's temperature is minimally affected by external conditions, and it has good vibration resistance features. The temporal resolution of a single pulse of the device is 10ns. The spatial resolution is 3×0.2×0.2mm with one-dimension measurement available.

    Keywords: Raman spectroscopy, SRS, Jet-engine, combustion diagnostics, Sensor

    Received: 11 Nov 2024; Accepted: 06 Jan 2025.

    Copyright: © 2025 Wang, Zhang, Wang, Wang, Liu, Wu, Shao, Ye and Cai. 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:
    Ke Wang, Northwest institute of Nuclear Technology, Xi'an, China
    Zhenrong Zhang, Northwest institute of Nuclear Technology, Xi'an, China
    Sheng Wang, Northwest institute of Nuclear Technology, Xi'an, China
    Yamin Wang, Northwest institute of Nuclear Technology, Xi'an, China
    Yangyang Liu, Northwest institute of Nuclear Technology, Xi'an, China
    Haolong Wu, Northwest institute of Nuclear Technology, Xi'an, China
    Jun Shao, Northwest institute of Nuclear Technology, Xi'an, China
    Jingfeng Ye, Northwest institute of Nuclear Technology, Xi'an, China
    Jianghuai Cai, Xiamen University, Xiamen, 361005, Fujian Province, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.