Smart water grade continuous monitoring fiber optic sensing system

This project presents a water grade monitoring system using fiber optics to continuously monitor multiple water-related parameters. The objective of the project is to construct a system that can detect the changes in parameters of the river-water parameters continuously for long distances and alert the authorities if necessary. The system is an alternative approach to overcome limitations of current solutions that result in water body structures unmonitored due to labour intensiveness. The design methodology is divided into the following scope of work: (i) system design, covering interfacing and information processing, (ii) optical fiber network setup, and (ii) sensing modules, covering electronic sensors applications and interfacing of sensors. A water body model is constructed to demonstrate action of four parameter sensing: pH, oil detection, water flow and water level electrical sensors. Results show that difference in electrical sensor voltage output is able to induce pressure to FBG through servomotors. This action causes a shift on central wavelength along the optical fiber network. This information will be detected and analyzed by Agilent VEE. Analysis covers model data with pH ranging from 4 to 12 in 4 levels, presence of oil, water level rise between 5 to 15 cm and water flow rate change of in litres/min.