A quartz-enhanced photoacoustic spectroscopy sensor for measurement of water vapor concentration in the air<xref ref-type="fn" rid="cpb141171fn1">*</xref>

A quartz-enhanced photoacoustic spectroscopy sensor for measurement of water vapor concentration in the air*

Gong Ping, Xie Liang†, Qi Xiao-Qiong, Wang Rui, Wang Hui, Chang Ming-Chao, Yang Hui-Xia, Sun Fei, Li Guan-Peng

Fig. 1. Experimental setup of QEPAS sensor for measurement of water vapor concentration in the air at atmospheric pressure and room temperature.