The 83rd JSAP Autumn Meeting 2022
Sep 20 - Oct 17, 2022Kawauchi-Kita Campus, Tohoku University
The 83rd JSAP Autumn Meeting 2022
Sep 20 - Oct 17, 2022Kawauchi-Kita Campus, Tohoku University
[21p-A301-10]Improvement of the Signal to Noise Ratio for Gas Sensor Measurements by Repetitive Measurements
〇Gaku Imamura1,2, Genki Yoshikawa1,3, Kosuke Minami1(1.NIMS, 2.Osaka Univ., 3.Univ. of Tsukuba)
Keywords:
gas sensor,noise reduction,Membrane-type surface stress sensor (MSS)
In gas sensor measurements in which the concentration of a target gas species is low, only measurement results with a low signal-to-noise ratio (SNR) can be obtained. In this study, we analytically show that repetitive cycles of introducing a sample gas and a carrier gas can increase the signal-to-noise ratio of the result. We also demonstrate the improvement of the SNR in gas sensing measurements with membrane-type surface stress sensors (MSS).