Work

Underwater Depth and Temperature Sensing Based on Fiber Optic Technology for Marine and Fresh Water Applications

Year: 2017

Type: article

Abstract: 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.

Source: Sensors

DOI: 10.3390/s17061228

Authors: Dinesh Duraibabu, Gabriel Leen, Daniel Toal, Thomas Newe, Elfed Lewis, Gerard Dooly

Institution: University of Limerick

Language: English

Topic: Advanced Fiber Optic Sensors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Life below water

Open Access status: gold

Estimated APC paid: $3,137