Photoacoustic trace gas detection of ethylene in high-concentration methane background based on dual light sources and fiber-optic microphone

•An all-optical PA system based on dual light sources and a FOM.•Trace gas detection of ethylene in high-concentration methane background.•A lock-in WLI based demodulator was developed for detection of 1f and 2f PA signal.•The detection limit of ethylene reached 200 ppb over a range of 0–100% methan...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Sensors and actuators. B, Chemical Chemical, 2020-05, Vol.310, p.127825-7, Article 127825
Hauptverfasser:	Chen, Ke, Zhang, Bo, Guo, Min, Chen, Yewei, Deng, Hong, Yang, Beilei, Liu, Shuai, Ma, Fengxiang, Zhu, Feng, Gong, Zhenfeng, Yu, Qingxu
Format:	Artikel
Sprache:	eng
Schlagworte:	Demodulators Dual light sources Emitters Ethylene Fiber optics Fiber-optic Gases Infrared lasers Light sources Methane Multi-gas analysis Optical fibers Photoacoustic spectrometer Sensor Thermal radiation Time division multiplexing Trace gas detection Trace gases White light interferometry
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Schreiben Sie den ersten Kommentar!