Fundamental Study on the Development of Fiber Optic Sensor for Real-time Sensing of CaCO₃ Scale Formation in Geothermal Water

• OKAZAKI Takuya

  Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama

• IMAI Kenichiro

  Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama

• TAN Shin Y.

  Department of Electronic Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti

• YONG Yun T.

  Department of Electronic Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Jalan Universiti

• RAHMAN Faidz A.

  Department of Electrical and Electronic Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Genting Kelang

• HATA Noriko

  Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama

• TAGUCHI Shigeru

  Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama

• UEDA Akira

  Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama

• KURAMITZ Hideki

  Department of Environmental Biology and Chemistry, Graduate School of Science and Engineering for Research, University of Toyama

書誌事項

タイトル別名

• Fundamental Study on the Development of Fiber Optic Sensor for Real-time Sensing of CaCO₃ Scale Formation in Geothermal Water

抄録

This study proposes an optical fiber sensor for calcium carbonate (CaCO₃) scale formation in water. The sensor is easily fabricated by removing the cladding of a multimode fiber to expose the core towards the surrounding medium in order to detect refractive index change. A variation of the transmittance response from the high refractive index of CaCO₃ which precipitated on the fiber core surface was observed. The proposed setup can be used to analyze the transmittance response over wide range of wavelength using white light as a source and also a spectroscopy detector. The curve of the transmittance percentage over time showed that a fiber core with 200 μm has higher sensitivity as compared to a fiber core with 400 μm. The findings from this study showed that the sensor detection region at near infrared (NIR) wavelengths showed better sensitivity than visible light (VIS) wavelengths. Field tests were conducted using natural geothermal water at Matsushiro, Japan in order to verify the performance of the proposed sensor. The optical response was successfully evaluated and the analytical results confirmed the capability of monitoring scale formation in a geothermal water environment.

収録刊行物

• Analytical Sciences

  Analytical Sciences 31 (3), 177-183, 2015

  社団法人 日本分析化学会

キーワード

• Fiber optic sensor
• scale
• calcium carbonate
• geothermal water
• real-time sensing

詳細情報

• CRID: 1390282679236978432
• NII論文ID: 130004827471
• NII書誌ID: AA10500785
• DOI: 10.2116/analsci.31.177
• ISSN: 13482246
• ISSN: 09106340
• NDL書誌ID: 026247309
• PubMed: 25765379
• Web Site: http://id.ndl.go.jp/bib/026247309
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026247309
• Web Site: https://link.springer.com/content/pdf/10.2116/analsci.31.177.pdf
• Web Site: https://link.springer.com/article/10.2116/analsci.31.177/fulltext.html
• Web Site: https://www.jstage.jst.go.jp/article/analsci/31/3/31_177/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • PubMed
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可