Fiber optic spectrophotometry for monitoring dissolved oxygen in a tropical ornamental fish tank environment

Anand Krishna Asundi; Jun-Wei Chen; Duo-Min He

doi:10.1117/12.347744

7 May 1999 Fiber optic spectrophotometry for monitoring dissolved oxygen in a tropical ornamental fish tank environment

Anand Krishna Asundi, Jun-Wei Chen, Duo-Min He

Proceedings Volume 3740, Optical Engineering for Sensing and Nanotechnology (ICOSN '99); (1999) https://doi.org/10.1117/12.347744
Event: Optical Engineering for Sensing and Nanotechnology (ICOSN '99), 1999, Yokohama, Japan

Abstract

Using Fiber Optic Spectro-Photometry (FOSP) methodology, a set of high sensitivity fiber optic oxygen monitoring system performing NDT is developed for fish farming environment. The working principle of the sensor is based on the detection signal at a particular wavelength due to the fluorescence and quenching of coated dye (ruthenium complex) in response to oxygen concentration at the tip of the probe. This paper looks into the application of fiber optics oxygen sensor in an aquatic environment. A comparison study of the optical probe was made with a conventional electrochemical oxygen sensor. Both sensors were setup to monitor the dissolved oxygen of an aquatic system for a period of time. This new methodology offers an alternative choice for monitoring dissolved oxygen. Apart from the possibility to miniaturize the monitoring equipment for aquatic environment, it is also feasible to 'bundle' other chemical sensors together into one single cable, thus achieving compactness, effectiveness and yet without forgoing whatever the traditional electrochemical sensors could offer.

Citation Download Citation

Anand Krishna Asundi, Jun-Wei Chen, and Duo-Min He "Fiber optic spectrophotometry for monitoring dissolved oxygen in a tropical ornamental fish tank environment", Proc. SPIE 3740, Optical Engineering for Sensing and Nanotechnology (ICOSN '99), (7 May 1999); https://doi.org/10.1117/12.347744

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