Chaganti, L.G. Pavan Kumar and Mat Saman, Norhafezaidi and Ahmad, Mohd. Hafizi and Mohd. Noor, Muhammad Yusof and Azmi, Asrul Izam (2023) PVAc based SCMS optical fiber humidity sensor and its application in transformer oil. Optical Fiber Technology, 80 (NA). NA. ISSN 1068-5200
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Official URL: http://dx.doi.org/10.1016/j.yofte.2023.103439
Abstract
This paper presents a novel design of an optical fiber sensor (OFS) utilizing a single-mode-coreless-multimode-single-mode (SCMS) fiber coated with Poly-Vinyl Acetate (PVAc) for humidity and moisture detection. PVAc, a highly sensitive synthetic polymer, exhibits changes in refractive index (RI) based on relative humidity (RH) variations in the surrounding medium, thereby affecting the output power of SCMS. Numerical analysis using COMSOL Multiphysics determined the optimal coating thickness. The fabricated PVAc-coated SCMS sensor enables RH measurement in air and moisture measurement in oil. The sensor demonstrated a sensitivity of 0.19 dBm/%RH and 0.16 dBm/%RH for increasing and decreasing humidity rates, respectively, within an RH range of 60–85% in air media. Additionally, the sensor achieved a sensitivity of 0.15 dBm/ppm for moisture measurement in oil media.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | coreless fiber, Optical Fiber Sensors (OFS), PVAc, SCMS |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Electrical Engineering |
| ID Code: | 106099 |
| Deposited By: | Yanti Mohd Shah |
| Deposited On: | 06 Jun 2024 08:28 |
| Last Modified: | 06 Jun 2024 08:28 |
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