Design and characteristics of a differential Helmholtz resonant photoacoustic cell for infrared gas detection

被引：97

作者：

Zeninari, V

Kapitanov, VA

Courtois, D

Ponomarev, YN

机构：

[1] Fac Sci, Grp Spectrometrie Mol & Atmospher, CNRS, UPRES A 6089, F-51687 Reims 2, France

[2] SBRAS, Inst Atmospher Opt, Lab Atmospher Absorpt Spect, Tomsk 634055, Russia

来源：

INFRARED PHYSICS & TECHNOLOGY | 1999年 / 40卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

gas detection; photoacoustic system; Helmholtz resonator;

D O I：

10.1016/S1350-4495(98)00038-3

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The Helmholtz resonant photoacoustic (PA) cell is a very convenient design of PA system for air pollution monitoring based on infrared molecular absorption. A simple differential Helmholtz resonator designed for flow measurements is presented in this work. The investigation of the PA systems characteristics based on this design includes experimental study of the responsitivity both of the separate photoacoustic cell and the whole photoacoustic system applied to trace gases detection. The experimental observations an compared to the theoretical predictions. A simple arrangement to enhance the photoacoustic signal of the whole system by a factor of 2 is presented. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 23

页数：23

共 31 条

[1] SIZE CONSIDERATIONS IN DESIGN OF CELLS FOR PHOTOACOUSTIC SPECTROSCOPY [J].