Compact Portable QEPAS Multi-gas Sensor

被引：13

作者：

Dong, Lei ^{[1
]}

Kosterev, Anatoliy A. ^{[1
]}

Thomazy, David ^{[1
]}

Tittel, Frank K. ^{[1
]}

机构：

[1] Rice Univ, Dept Elect & Comp Engn, Houston, TX 77005 USA

来源：

QUANTUM SENSING AND NANOPHOTONIC DEVICES VIII | 2011年 / 7945卷

关键词：

quartz-enhanced photoacoustic spectroscopy (QEPAS); portable multi-gas sensor; distributed-feedback diode laser; quartz tuning fork; laser spectroscopy; trace gas detection;

D O I：

10.1117/12.875108

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A quartz-enhanced photoacoustic spectroscopy (QEPAS) based multi-gas sensor was developed to quantify concentrations of carbon monoxide (CO), hydrogen cyanide (HCN), hydrogen chloride (HCl), and carbon dioxide (CO2) in ambient air. The sensor assembled in a compact package of dimensions 25cm x 25cm x 10cm was designed to operate at atmospheric pressure. The HCN, CO2, and HCl measurement channels are based on cw, C-band telecommunication-style packaged, fiber-coupled diode lasers, while the CO channel uses a TO can-packaged Sb diode laser as an excitation source. The sensor incorporates rechargeable batteries and can run on batteries for at least 8 hours. It can also operate autonomously or interact with another device (such as a computer) via a RS232 serial port. Trace gas detection limits of 7.74ppm at 4288.29cm(-1) for CO, 450ppb at 6539.11 cm(-1) for HCN, 1.48ppm at 5739.26 cm(-1) for HCl and 97ppm at 6361.25 cm(-1) for CO2 for a 1sec average time, were demonstrated.

引用

页数：8

共 5 条

[1] QEPAS spectrophones: design, optimization, and performance [J].

Dong, L. ;

Kosterev, A. A. ;

Thomazy, D. ;

Tittel, F. K. .

APPLIED PHYSICS B-LASERS AND OPTICS, 2010, 100 (03) :627-635

[2] Advanced Quartz-Enhanced Photoacoustic Trace Gas Sensor for Early Fire Detection [J].

Kosterev, A. A. ;

Tittel, F. K. ;

Bearman, G. .

SAE INTERNATIONAL JOURNAL OF AEROSPACE, 2009, 1 (01) :331-336

[3] Applications of quartz tuning forks in spectroscopic gas sensing [J].

Kosterev, AA ;

Tittel, FK ;

Serebryakov, DV ;

Malinovsky, AL ;

Morozov, IV .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2005, 76 (04)

[4] Quartz-enhanced photoacoustic spectroscopy [J].

Kosterev, AA ;

Bakhirkin, YA ;

Curl, RF ;

Tittel, FK .

OPTICS LETTERS, 2002, 27 (21) :1902-1904

[5]

THOMAZY D, 2010, P SOC PHOTO-OPT INS, V7608

← 1 →