Nebiker,P. W.,Pleisch,R. E.Photoacoustic gas detection for fire warning. Fire Safety Journal . 2002Nebiker P W,Pleisch R E.Photoacoustic gas detection for fire warning. Fire Safety Journal . 2001Nebiker;P;W;Pleisch;R;E.Photoacoustic gas detection for fire warning.Fire Safety Journal....
An all-optical photoacoustic spectrometer based on the diaphragm-based extrinsic Fabry鈥揚erot interferometer (EFPI) fiber acoustic sensor for trace gas detection at atmospheric pressure and room temperature is first developed. The diaphragm-based EFPI fiber acoustic sensor is used to replace the ...
Hydrogen sulfide (H2S) trace gas detection based on off-beam quartz-enhanced photoacoustic spectroscopy using a continuous wave (CW), mode-hop-free external cavity (EC) quantum cascade laser tunable fdoi:10.1007/s00340-017-6717-8Marek Helman...
Abstract We reported the development of an evanescent-wave quartz-enhanced photoacoustic sensor (EW-QEPAS) using a single-mode optical fiber tip for sensitive gas detection in the extended near-infrared region. It is a spectroscopic technique based on the combination of quartz-enhanced photoacoustic s...
design and characteristics of quantum cascade laser-based co detection system:基于量子级联激光器的协同探测系统设计与性能 热度: 光声光谱技术检测微量气体浓度研究 热度: 声光调q可调谐co2激光器的研究 热度: 相关推荐 基于泛频 Co 激光器的微量气体光声光谱仪 % % 于清旭 %% !李 红!林钧岫 (大连...
To overcome such disadvantages as large volume,low real-time and inability to detect trace gas in narrow space in the conventional quartz enhanced photoacoustic spectroscopy(QEPAS)system,a trace gas detection sensor system based on fiber lead open path QEPAS is investigated.The laser source is led ...
P W Nebiker,R E Pleisch.Photoacoustic gas detection for fire warning, Fire Safety Journal. . 2001Nebiker PW , Pleisch RE. Photoacoustic gas detection for fire warning[J ] . Fire Safety J . 2001 , 36 (2) :173～180.Photoacoustic gas detection for fire warning, Fire Safety Journal. P ...
The acoustic sensor is applied in an all-optical trace gas detection system based on photoacoustic spectroscopy. With the wavelength modulation and harmonic detection method, the detection limit of acetylene is achieved to be 0.87 parts-per-billion volume (signal-to-noise ratio=1) at the ...
For all three figures, the black dots indicate the experimental data, while the black line is the fit applied to them. According to the characterization measurements, the selection of the optimal working pressure for the photoacoustic trace-gas detection must represent a trade-off between two ...
photoacoustic spectroscopy; quantum cascade laser; trace gas detection1. Introduction The detection and quantification of trace gases is of great interest in a wide range of applications such as pollution monitoring, industrial process control, toxic-gas detection and human breath analysis for medical ...