Adaptation of a Commercially Available Laser Raman Spectrometer for Underwater Chemical Sensing

Jing Heng Huang, Yen Huang Liu, Kun Sheng Lee, Shuo Yen Tseng, Chyun Cheng Wang, Chau Chang Wang, Hsin Hung Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

To achieve in situ underwater chemical sensing, a commercially available Raman spectroscopy system was adapted for underwater operation. Using off-the-shelf laser unit, optical probe, spectrometer, and power/communications module, the system was integrated into a custom designed pressure housing. This instrument was deployed on the FITS (Fiber-optical Instrumentation Towed System) developed by the National Sun Yat-sen University for experiments. Measurements of Raman spectra were successfully performed with the instrument at 500 m depth. Power supply, instrument control, and data collection were provided through the FITS, which was connected to the research vessel with a cable containing copper conductors and fiber optic cables. Raman signal of sea water was successfully obtained from the measurements. Evidence of possible detection of methane was also recorded in the measurements.

Original languageEnglish
Title of host publication2019 IEEE International Underwater Technology Symposium, UT 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538641880
DOIs
Publication statusPublished - 2019 Apr
Event2019 IEEE International Underwater Technology Symposium, UT 2019 - Kaohsiung, Taiwan
Duration: 2019 Apr 162019 Apr 19

Publication series

Name2019 IEEE International Underwater Technology Symposium, UT 2019 - Proceedings

Conference

Conference2019 IEEE International Underwater Technology Symposium, UT 2019
CountryTaiwan
CityKaohsiung
Period19-04-1619-04-19

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All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Ocean Engineering
  • Water Science and Technology

Cite this

Huang, J. H., Liu, Y. H., Lee, K. S., Tseng, S. Y., Wang, C. C., Wang, C. C., & Chen, H. H. (2019). Adaptation of a Commercially Available Laser Raman Spectrometer for Underwater Chemical Sensing. In 2019 IEEE International Underwater Technology Symposium, UT 2019 - Proceedings [8734458] (2019 IEEE International Underwater Technology Symposium, UT 2019 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/UT.2019.8734458