Real-time optical fiber sensing of phytoplankton for studies in size distribution, concentration, and biomass

Robert K Y CHAN*, Ce Chen, S. K. Cheng

*Corresponding author for this work

Research output: Chapter in book/report/conference proceedingConference contributionpeer-review

Abstract

An optical fiber laser-Doppler system has ben developed to detect both the laser-induced-fluorescence (LIF) signal and the laser-Doppler signal of phytoplankton traversing through a measurement volume. From the two measurement, the size distribution, concentration, biomass, and the amount of chlorophyll present can be determined. Our apparatus have demonstrated successfully that it can resolve distinctly the size distribution of two species of phytoplankton (Chlorella and Scenedesmus). For phytoplankton, these two species do not have mark differences in size, one being less than 10 μm while the other is approximately 25 μm, and yet our measurement gave very satisfactory results. The result obtained clearly indicates that our optical system can produce accurate and liable size measurement and is suitable to be further develop into a practical in situ field instrument.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages49-57
Number of pages9
Publication statusPublished - 1995
EventChemical, Biochemical, and Environmental Fiber Sensors VII - Munich, Ger
Duration: 19 Jun 199520 Jun 1995

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2508
ISSN (Print)0277-786X

Conference

ConferenceChemical, Biochemical, and Environmental Fiber Sensors VII
CityMunich, Ger
Period19/06/9520/06/95

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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