Density Characterizations Of Organic Solvents By An Optical Technique

Omar, Nurul Ashiqin (2019) Density Characterizations Of Organic Solvents By An Optical Technique. Project Report. UTeM, Melaka. (Submitted)

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Abstract

The main aim of this project is to design a system that is capable to characterize the density of the organic solvents by using an optical technique. The POF was employed as the sensor instead of the conventional electronic sensor due to less power usage, more cost effective and tend to be thicker than glass optical fibers. The type of organic solvents in consideration is Glycerol, Ethanol and Isopropyl alcohol. Both electrical and optical measurements were taken into account. Arduino Uno is used to read the output data and will be connected with Wi-Fi module for IOT monitoring purpose. The outcome of this project is the identification of different density of the organic solvents produces different refractive index change and the relationship between the value of the refractive index and the output power. In conclusion, when the density of organic solvents gets higher, the light speed through the fiber sensor will decrease thus the output power produced is decrease. Other than that, the most sensitive organic solvent towards the fiber sensor is observed. For this project, the highest sensitivity solution for POF sensor is Isopropyl Alcohol solution. The sensitivity obtained was -61.0022dBm/RIU, -633.671nW/RIU and -11.4706V/RIU. The smallest number of the slope at the graph, the sensitivity is high.

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