Yin Xukun, Dong Lei, Wu Hongpeng, Zhang Lei, Ma Weiguang, Yin Wangbao, Xiao Liantuan, Jia Suotang, Tittel Frank K
Opt Express. 2019 Feb 18;27(4):A224-A234. doi: 10.1364/OE.27.00A224.
A ppb-level photoacoustic multicomponent gas sensor system for sulfur hexafluoride (SF) decomposition detection was developed by the use of two near-infrared (NIR) diode lasers and an ultraviolet (UV) solid-state laser. A telecommunication fiber amplifier module was used to boost up the excitation optical power from the two NIR lasers. A dual-channel high-Q photoacoustic cell (PAC) was designed for the simultaneous detection of CO, HS, and SO in SF buffer gas by means of a time division multiplexing (TDM) method. Feasibility and performance of the multicomponent sensor was evaluated, resulting in minimum detection limits of 435 ppbv, 89 ppbv, and 115 ppbv for CO, HS, and SO detection at atmospheric pressure.
利用两台近红外（NIR）二极管激光器和一台紫外（UV）固态激光器，开发了一种用于六氟化硫（SF）分解检测的皮克级光声多组分气体传感器系统。使用一个电信光纤放大器模块来增强两台近红外激光器的激发光功率。设计了一个双通道高Q光声池（PAC），通过时分复用（TDM）方法同时检测SF缓冲气体中的CO、HS和SO。评估了多组分传感器的可行性和性能，在大气压下，CO、HS和SO检测的最低检测限分别为435 ppbv、89 ppbv和115 ppbv。
