Akademik Veri Yönetim Sistemi
Erciyes Üniversitesi Fen Bilimleri Enstitüsü Dergisi, cilt.37, sa.1, ss.149-156, 2021 (Hakemli Dergi)
In this study, U-shaped fiber optic sensor tips sensitive to refractive index
(RI) change were produced, and its performance analyses were carried out. Three
sensor tips were used to measure ethanol/methanol-water mixtures in
concentrations from 0% to 16.66%. The ethanol sensor tip was able to detect the RI
change of 4×10-4 RIU. Its maximum sensitivity is 7.71 mV/RIU, and its linearity is
0.9985. The methanol sensor tip was able to detect the RI change of 1×10-4 RIU. Its
maximum sensitivity is 28.49 mV/RIU, and its linearity is 0.9969. Each sensor tips
determine the change of 1.41% concentration in the mixtures. Moreover, the results
show that it can provide high precision in the measurement of ethanol/methanolwater mixtures and achieve satisfying stability and repeatability