A high-sensitivity, near-infrared tunable-diode-laser-based photoacoustic water-vapour-detection system for automated operation

被引：23

作者：

Bozóki, Z

Sneider, J

Gingl, Z

Mohácsi, A

Szakáll, M

Bor, Z

Szabó, G

机构：

[1] Hungarian Acad Sci, Res Grp Laser Phys, H-6701 Szeged, Hungary

[2] JATE Univ, Dept Opt & Quantum Elect, H-6701 Szeged, Hungary

[3] JATE Univ, Dept Expt Phys, H-6701 Szeged, Hungary

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 1999年 / 10卷 / 11期

关键词：

photoacoustic spectroscopy; diode laser; water vapour;

D O I：

10.1088/0957-0233/10/11/304

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A photoacoustic sensor system for automatic detection of low concentrations of water vapour is described in this paper. A Littman-configuration external-cavity diode laser operating at 1125 nm was used as a light source in combination with a high-sensitivity measuring photoacoustic cell, a reference photoacoustic cell and PC-controlled electronics. The system was calibrated with synthetic gas samples and a detection limit of 13 mu mol per mol of water vapour was determined. Adsorption/desorption phenomena at the walls of the measuring photoacoustic cell were found to be an important limiting factor for the sensitivity of the system.

引用

页码：999 / 1003

页数：5

共 20 条

[1] Development of a photoacoustic gas sensor for in situ and on-line measurement of gaseous water and toluene
Beenen, A
Niessen, R
[J]. ANALYST, 1998, 123 (04) : 543 - 545
[2] CO-LASER PHOTOACOUSTIC-SPECTROSCOPY OF GASES AND VAPORS FOR TRACE GAS-ANALYSIS
BERNEGGER, S
SIGRIST, MW
[J]. INFRARED PHYSICS, 1990, 30 (05): : 375 - 429
[3] Intracavity photoacoustic gas detection with an external cavity diode laser
Bozoki, Z
Sneider, J
Szabo, G
Miklos, A
Serenyi, M
Nagy, G
Feher, M
[J]. APPLIED PHYSICS B-LASERS AND OPTICS, 1996, 63 (04): : 399 - 401
[4] PULSED-LASER EXCITATION OF ACOUSTIC MODES IN OPEN HIGH-Q PHOTOACOUSTIC RESONATORS FOR TRACE GAS MONITORING - RESULTS FOR C2H4
BRAND, C
WINKLER, A
HESS, P
MIKLOS, A
BOZOKI, Z
SNEIDER, J
[J]. APPLIED OPTICS, 1995, 34 (18): : 3257 - 3266
[5] Detection of small quantities of gaseous contamination in a gas by using a differential optical method
Djaozandry, R
St Arnaud, JM
Bose, TK
Frechette, MF
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1998, 69 (03) : 1398 - 1402
[6] OPTOACOUSTIC TRACE-GAS MONITORING WITH NEAR-INFRARED DIODE-LASERS
FEHER, M
JIANG, Y
MAIER, JP
MIKLOS, A
[J]. APPLIED OPTICS, 1994, 33 (09): : 1655 - 1658
[7] Sensitive measurement of adsorption dynamics with nonresonant gas phase photoacoustics
Henningsen, J
Melander, N
[J]. APPLIED OPTICS, 1997, 36 (27): : 7037 - 7045
[8] Gas monitoring in the process industry using diode laser spectroscopy
Linnerud, I
Kaspersen, P
Jaeger, T
[J]. APPLIED PHYSICS B-LASERS AND OPTICS, 1998, 67 (03): : 297 - 305
[9] EFFECTIVE NOISE-REDUCTION ON PULSED-LASER EXCITATION OF MODES IN A HIGH-Q PHOTOACOUSTIC RESONATOR
MIKLOS, A
BRAND, C
WINKLER, A
HESS, P
[J]. JOURNAL DE PHYSIQUE IV, 1994, 4 (C7): : 781 - 784
[10] Miklós A, 1999, AIP CONF PROC, V463, P126

← 1 2 →