Gas Absorption Center-Based Wavelength Calibration Technique in QEPAS System for SNR Improvement

Abstract A simple and effective wavelength calibration scheme is proposed in a quartz enhanced photoacoustic spectroscopy (QEPAS) system for trace gas detection. A reference gas cell is connected an InGaAs photodetector for detecting the absorption intensity peak caused by the gas to calibrate the g...

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Detalhes bibliográficos

Principais autores:	Zongliang Wang, Jun Chang, Qi Liu, Cunwei Tian, Qinduan Zhang
Formato:	Artigo
Idioma:	Inglês
Publicado em:	Tsinghua University Press 2018-07-01
coleção:	Photonic Sensors
Assuntos:	QEPAS DFB-LD wavelength calibration fiber gas sensor
Acesso em linha:	http://link.springer.com/article/10.1007/s13320-018-0502-0
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