石英增强光声光谱在氢气纯度分析中的应用

大气与环境光学学报 ›› 2012, Vol. ›› Issue (6): 421-426.

石英增强光声光谱在氢气纯度分析中的应用

董磊, 武红鹏, 张翔, 马维光, 张雷, 尹王保, 贾锁堂

（山西大学激光光谱实验室，量子光学与光量子器件国家重点实验室，山西太原 030006）

收稿日期:2012-07-04 修回日期:2012-08-14 出版日期:2012-11-28 发布日期:2012-11-08
通讯作者: 董磊（1979-），男，河南新乡人，副教授，主要从事激光光谱技术及气体传感器的研究。 E-mail:donglei@sxu.edu.cn
作者简介:董磊（1979-），男，河南新乡人，副教授，主要从事激光光谱技术及气体传感器的研究。
基金资助:
国家青年基金(61108030)，国家自然科学基金 (61275213)，山西大学本科生科研训练计划项目，国家基金仪器专项(61127017)，山西省环境项目(2011256)，国家973计划项目(2012CB921600)，国家基金重点项目(10934004)，国家自然科学基金(61178009)，国家自然科学基金 (60978018)资助

Application of Quartz-enhanced Photoacoustic Spectroscopy in Purity Analysis

DONG Lei, WU Hong-peng, ZHANG Xiang, MA Wei-guang, ZHANG Lei, YIN Wang-bao, JIA Suo-tang

(Laser Spectroscopy Laboratory of Shanxi University, State Key Laboratory of Quantum Optics and Quantum Optics Devices, Taiyuan 030006, China)

Received:2012-07-04 Revised:2012-08-14 Published:2012-11-28 Online:2012-11-08

摘要/Abstract

摘要：

设计了一种基于石英增强光声光谱技术的痕量气体传感器，用来检测非纯氢气中的痕量甲烷浓度。传感器被配置了一个微型谐振腔，能够在空间上对声波进行限制，用以增强信号幅值。在这种配置和27 kPa的最优气压下，获得的甲烷探测灵敏度为3.2 ppm（1s平均时间），相应的归一化噪声等效吸收系数（1σ）为2.45×10-8 cm-1 W/Hz1/2。

关键词: 石英增强光声光谱, 气体传感器, 氢气纯度分析, 音叉式石英晶振

Abstract:

A compact gas sensor based on quartz-enhanced photoacoustic spectroscopy (QEPAS) was developed for trace methane quantification in impure hydrogen. The sensor is equipped with a microresonator to confine the sound wave and enhance QEPAS signal. The normalized noise-equivalent absorption coefficients (1σ) of 2.45×10-8 cm-1 W/ Hz1/2 for CH4 detection at 27 kPa were demonstrated with the QEPAS sensor configuration, which corresponds to the detection sensitivity of 3.2 ppm (1 s averaging time).

Key words: quartz-enhanced photoacoustic spectroscopy, gas sensor, purity analysis of hydrogen, quartz tuning fork

中图分类号:

O433.4
TN214

董磊武红鹏张翔马维光张雷尹王保贾锁堂. 石英增强光声光谱在氢气纯度分析中的应用[J]. 大气与环境光学学报, 2012, (6): 421-426.

DONG Lei, WU Hong-Peng, ZHANG Xiang, MA Wei-Guang, ZHANG Lei, YIN Wang-Bao, JIA Suo-Tang. Application of Quartz-enhanced Photoacoustic Spectroscopy in Purity Analysis[J]. Journal of Atmospheric and Environmental Optics, 2012, (6): 421-426.

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