二氧化碳对乙炔光声光谱检测的干扰特性研究

doi:10.3969/j.issn.1007-5461.2026.05.005

量子电子学报 ›› 2026, Vol. 43 ›› Issue (5): 727-734.doi: 10.3969/j.issn.1007-5461.2026.05.005

二氧化碳对乙炔光声光谱检测的干扰特性研究

周尚虎 1, 莫冰玉 1, 何艳姣 2, 李剑武 2, 韩梦龙 1, 范帆 3, 杨雅萍 1, 田博海 1, 韩笑 4, 陈珂 4*

1 国家电网青海省电力公司电力科学研究院, 青海西宁 810008; 2 国家电网青海省电力公司, 青海西宁 810008; 3 中国电力科学研究院有限公司, 湖北武汉 430073; 4 大连理工大学光电工程与仪器科学学院, 辽宁大连 116024

收稿日期:2024-07-22 修回日期:2024-12-20 出版日期:2026-09-28 发布日期:2026-09-30
通讯作者: E-mail: chenke@dlut.edu.cn E-mail:chenke@jiangnan.edu.cn
作者简介:周尚虎 ( 1986 - ), 青海西宁人, 硕士, 高级工程师, 主要从事充油电气设备运行状态评价方面的研究。E-mail: 378438626@qq.com
基金资助:
国家自然科学基金 (62275054, 61905034)

Research on the interference characteristics of carbon dioxide on photoacoustic spectroscopy detection of acetylene

ZHOU Shanghu 1, MO Bingyu 1, HE Yanjiao 2, LI Jianwu 2, HAN Menglong1, FAN Fan3, YANG Yaping 1, TIAN Bohai 1, HAN Xiao 4, CHEN Ke 4*

1 State Grid Qinghai Electric Power Corporation Electric Power Research Institute, Xining 810008, China; 2 State Grid Qinghai Electric Power Company, Xining 810008, China; 3 China Electric Power Research Institute Co., Ltd., Wuhan 430073, China; 4 School of Optoelectronic Engineering and Instrumentation Science, Dalian University of Technology, Dalian 116024, China

Received:2024-07-22 Revised:2024-12-20 Published:2026-09-28 Online:2026-09-30

摘要/Abstract

摘要： 当变压器内部发生电、热故障时, 绝缘油中的有机高分子会发生裂解, 从而产生C2H2、C2H4、CO2等气体, 而较高浓度的CO2气体会对C2H2气体的光声光谱检测产生干扰。本文首先通过分析CO2和C2H2气体的红外吸收光谱, 探究了CO2对C2H2气体检测产生干扰的原因。在此基础上, 采用分布式反馈激光器结合小型非共振光声池, 搭建了一套光声光谱C2H2检测系统, 并通过优化激光器调制参数, 实现了高可靠性的C2H2气体检测。实验结果表明, 该系统能显著抑制CO2气体对C2H2气体检测的干扰。在30 s 积分时间下, 系统对C2H2气体的检测极限达到64 × 10−9, 归一化噪声等效吸收系数为1.5 × 10−9 cm−1⋅W⋅Hz−1/2。

关键词: 光谱分析, 干扰特性, 对照实验, 油中溶解乙炔

Abstract: When electrical or thermal faults occur inside the transformer, the organic polymers in the insulating oil will undergo cracking, leading to the production of C2H2, C2H4, CO2, and other gases. However, high concentrations of CO2 will interfere with the photoacoustic (PA) spectroscopy detection of C2H2 gas. This article first explores the reason for the interference of CO2 on the detection of C2H2 gas by analyzing the infrared absorption spectra of CO2 and C2H2. On this basis, a distributed feedback (DFB) laser combined with a small non-resonant PA cell is used to build a C2H2 detection system based on PA spectroscopy, and high reliability of C2H2 gas detection is achieved by optimizing the laser modulation parameters. The experimental results show that the system can significantly suppress the interference of CO2 gas on C2H2 gas detection. At a sampling integration time of 30 s, the calculated minimum detection limit of the system is about 64 × 10−9, and the normalized noise equivalent absorption coefficient is 1.5 × 10−9 cm-1·W·Hz−1/2.

Key words: spectral analysis, interference characteristics, comparative experiment, dissolved acetylene in oil

中图分类号:

O433.4

周尚虎 , 莫冰玉 , 何艳姣 , 李剑武 , 韩梦龙 , 范帆 , 杨雅萍 , 田博海 , 韩笑 , 陈珂 . 二氧化碳对乙炔光声光谱检测的干扰特性研究[J]. 量子电子学报, 2026, 43(5): 727-734.

ZHOU Shanghu , MO Bingyu , HE Yanjiao , LI Jianwu , HAN Menglong, FAN Fan, YANG Yaping , TIAN Bohai , HAN Xiao , CHEN Ke . Research on the interference characteristics of carbon dioxide on photoacoustic spectroscopy detection of acetylene[J]. Chinese Journal of Quantum Electronics, 2026, 43(5): 727-734.

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二氧化碳对乙炔光声光谱检测的干扰特性研究

Research on the interference characteristics of carbon dioxide on photoacoustic spectroscopy detection of acetylene

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