基于可调谐半导体激光吸收光谱的武器发射气体浓度在线检测研究

doi:10.3969/j.issn.1000-1093.2018.07.018

兵工学报 ›› 2018, Vol. 39 ›› Issue (7): 1397-1403.doi: 10.3969/j.issn.1000-1093.2018.07.018

基于可调谐半导体激光吸收光谱的武器发射气体浓度在线检测研究

彭澎，狄长安，张永建，陈昊飞，宋炜，尹强

（南京理工大学机械工程学院, 江苏南京 210094）

收稿日期:2017-11-28 修回日期:2017-11-28 上线日期:2018-08-24
通讯作者: 狄长安（1973—），男，教授，博士生导师 E-mail:dica3@sina.com
作者简介:彭澎（1991—），男，博士研究生。 E-mail: pp802799@163.com
基金资助:
国家国防科技工业局技术基础科研项目（1161010265）；江苏省自然科学基金项目（BK20140773）

On-line Detection of Gas Concentration during Weapon Firing Based on Tunable Diode Laser Absorption Spectroscopy

PENG Peng, DI Chang-an, ZHANG Yong-jian, CHEN Hao-fei, SONG Wei, YIN Qiang

(School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China)

Received:2017-11-28 Revised:2017-11-28 Online:2018-08-24

摘要/Abstract

摘要： 电化学气体浓度检测系统检测响应速度慢、动态量程小，不能满足武器系统发射时产生的有害气体成分及浓度测量要求，针对此问题，基于可调谐半导体激光吸收光谱（TDLAS）技术提出一种适用于武器发射现场的一氧化碳（CO）浓度在线检测方法。分析基于TDLAS技术的武器发射气体浓度在线检测模型，搭建武器发射时CO在线检测系统，并通过CO吸收峰的选择与控制避免了燃气射流与液体罐内的水对CO浓度测量的干扰；利用单兵火箭在有限空间内发射时产生的CO气体不易消散特点，对基于TDLAS技术的CO在线动态检测性能进行了验证，给出一种适用于武器发射的气体浓度测试方法。测试分析结果表明，基于TDLAS技术的气体浓度检测系统响应速度比电化学气体浓度检测系统快5~15 s，有效量程上限可至100%（体积比），可进行连发射击的快速测量，克服了武器系统发射过程中冲击振动对检测系统的影响。

关键词: 可调谐半导体激光吸收光谱, 武器发射, 气体浓度, 在线检测, 有限空间

Abstract: Electrochemical gas concentration detecting system can not meet the composition and concentration detection requirements of the harmful gas generated by weapon system during firing due to its low response speed and small dynamic range. An on-line detection method of CO concentration based on tunable diode laser absorption spectroscopy (TDLAS) which is suitable for weapon launch site is presented. The detection model of the weapon emission gas concentration based on TDLAS technology is introduced, an on-line detection system of CO concentration is built. The interference of gas jet and liquid water in tank to the CO concentration measurement is avoided by selecting and controlling CO absorption peak. A method is proposed to verify the on-line dynamic detection performance of TDLAS on CO experimentally, in which less dissipation of CO gas produced by a single soldier rocket in a limited space is made use of. The test and analyzed results show that the response rate of TDLAS gas concentration detecting system is 5-15 s faster than that of electrochemical sensor, and TDLAS effective range is up to 100% (volume ratio), which can take a rapid detection for continuous shooting. In addition, non-invasive detection overcomes the influence of impact vibration on the detecting system during launching of weapon system. Key

Key words: tunablediodelaserabsorptionspectroscopy, weaponfiring, gasconcentration, on-lineinspection, finitespace

中图分类号:

TJ06

彭澎，狄长安，张永建，陈昊飞，宋炜，尹强. 基于可调谐半导体激光吸收光谱的武器发射气体浓度在线检测研究[J]. 兵工学报, 2018, 39(7): 1397-1403.

PENG Peng, DI Chang-an, ZHANG Yong-jian, CHEN Hao-fei, SONG Wei, YIN Qiang. On-line Detection of Gas Concentration during Weapon Firing Based on Tunable Diode Laser Absorption Spectroscopy[J]. Acta Armamentarii, 2018, 39(7): 1397-1403.

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基于可调谐半导体激光吸收光谱的武器发射气体浓度在线检测研究

On-line Detection of Gas Concentration during Weapon Firing Based on Tunable Diode Laser Absorption Spectroscopy

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