論文

査読有り
2018年4月1日

Infrared hollow optical fiber probe for localized carbon dioxide measurement in respiratory tracts

Sensors (Switzerland)
  • Takashi Katagiri
  • ,
  • Kyosuke Shibayama
  • ,
  • Takeru Iida
  • ,
  • Yuji Matsuura

18
4
開始ページ
995
終了ページ
1002
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.3390/s18040995
出版者・発行元
MDPI AG

A real-time gas monitoring system based on optical absorption spectroscopy is proposed for localized carbon dioxide (CO2) measurement in respiratory tracts. In this system, a small gas cell is attached to the end of a hollow optical fiber that delivers mid-infrared light with small transmission loss. The diameters of the fiber and the gas cell are smaller than 1.2 mm so that the probe can be inserted into a working channel of common bronchoscopes. The dimensions of the gas cell are designed based on absorption spectra of CO2 standard gases in the 4.2 µm wavelength region, which are measured using a Fourier-transform infrared spectrometer. A miniature gas cell that is comprised of a stainless-steel tube with slots for gas inlet and a micro-mirror is fabricated. A compact probing system with a quantum cascade laser (QCL) light source is built using a gas cell with a hollow optical fiber for monitoring CO2 concentration. Experimental results using human breaths show the feasibility of the system for in-situ measurement of localized CO2 concentration in human airways.

リンク情報
DOI
https://doi.org/10.3390/s18040995
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/29584666
URL
http://www.mdpi.com/1424-8220/18/4/995
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85044719265&origin=inward 本文へのリンクあり
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85044719265&origin=inward
ID情報
  • DOI : 10.3390/s18040995
  • ISSN : 1424-8220
  • PubMed ID : 29584666
  • SCOPUS ID : 85044719265

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