The PolySense team has just published a new article on Sensors and Actuators B Chemical reporting on a the realization of a QEPAS sensor for CH4 detection with vibrational to translational (V-T) relaxation self-calibration via simultaneous detection of water vapor concentration, exploiting a custom QTF operating in both the fundamental and first overtone flexural mode. The following link provide access to the article:
http://polysense.poliba.it/wp-content/uploads/2019/07/106_Ch4-Landfill_Sens-Act-B_2019.pdf
