Accuracy Improvement for Waveguide CRDS toward Compact Breath Sensing

Leiyun Wang; Wenying Li; Zanhui Chen; Yu Han; Haisong Jiang; Kiichi Hamamoto

Presentation information

Oral presentation

3 Optics and Photonics » 3.8 Optical measurement, instrumentation, and sensor

[8p-Z19-1~24] 3.8 Optical measurement, instrumentation, and sensor

Tue. Sep 8, 2020 1:00 PM - 8:00 PM Z19

Tatsutoshi Shioda(Saitama Univ.), Toshihiro Somekawa(Inst. for Laser Tech.), Minoru Tanabe(AIST), Takeo Minamikawa(Tokushima Univ.)

6:45 PM - 7:00 PM

▲ [8p-Z19-20] Accuracy Improvement for Waveguide CRDS toward Compact Breath Sensing

〇(M2)Leiyun Wang¹, Wenying Li¹, Zanhui Chen¹, Yu Han¹, Haisong Jiang¹, Kiichi Hamamoto¹ (1.I-EggS (Interdisciplinary Graduate School of Engineering Sciences), Kyushu Univ.)

Keywords:optical gas sensor, sensing accuracy improvement

Waveguide CRDS is used to realize compact breath sensor for ppm-order breath sensing. In this paper, we report the sensing accuracy improvement. The range of sensing accuracy fluctuation is shorted from 48.2%~93.2% to 69.1%~83.8% in CO₂concentration in exhaled breath sensing.