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A. R. A. RASHID1,* , A. H. SURANI1, N. ARSAD2
The ability to sense low concentration of ethanol rise an urge, especially in food industry. This paper reported the sensing performance of low concentration of ethanol solutions (0.5% to 3.5%) by varying the length (1, cm, 3 cm and 5 cm) and waist diameter (0.5 mm and 0.8 mm) of etched plastic optical fiber. Plastic Optical fiber with waist diameter of 0.5 mm with unclad length of 3 cm give an optimum performance in ethanol detection. Smaller waist diameter will increase the absorption coefficient value and affecting the sensor’s sensitivity. The sensitivity obtained by this sensor is 0.0671 a.u/% with linearity of 98% and limit of detection of 1.29%.
Polymer optical fiber, Ethanol concentration, Sensor, Refractive index.
A. R. A. RASHID, A. H. SURANI, N. ARSAD, Investigating the effect of waist diameter on sensitivity of the etched plastic optical fiber based ethanol sensor, Optoelectronics and Advanced Materials - Rapid Communications, 16, 11-12, November-December 2022, pp.518-522 (2022).
Submitted at: April 12, 2022
Accepted at: Dec. 5, 2022
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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