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Underwater depth and temperature sensing based on fiber optic technology for marine and fresh water applications

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journal contribution
posted on 2017-09-15, 08:52 authored by Dinesh Babu Duraibabu, Gabriel LeenGabriel Leen, Daniel ToalDaniel Toal, Thomas NeweThomas Newe, Elfed LewisElfed Lewis, Gerard DoolyGerard Dooly
Oceanic conditions play an important role in determining the effects of climate change and these effects can be monitored through the changes in the physical properties of sea water. In fact, Oceanographers use various probes for measuring the properties within the water column. CTDs (Conductivity, Temperature and Depth) provide profiles of physical and chemical parameters of the water column. A CTD device consists of Conductivity (C), Temperature (T) and Depth (D) probes to monitor the water column changes with respect to relative depth. An optical fibre-based point sensor used as a combined pressure (depth) and temperature sensor and the sensor system are described. Measurements accruing from underwater trials of a miniature sensor for pressure (depth) and temperature in the ocean and in fresh water are reported. The sensor exhibits excellent stability and its performance is shown to be comparable with the Sea-Bird Scientific commercial sensor: SBE9Plus.

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History

Publication

Sensors;17:1228

Publisher

MDPI

Note

peer-reviewed

Other Funding information

IRC, Marine Institute Ireland, European Regional Development Fund, SFI

Language

English

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