A U-Shaped Optical Fiber Temperature Sensor Coated with Electrospinning Polyvinyl Alcohol Nanofibers: Simulation and Experiment

Abstract

This study describes the fabrication of an electrospun, U-shaped optical fiber sensor for temperature measurements. The sensor is based on single mode fibers and was fabricated into a U-shaped optical fiber sensor through flame heating. This study applied electrospinning to coat PVA, a polymer, onto the sensor layer to reduce its sensitivity to humidity. The sensor is used to measure temperature variations ranging from 30 °C to 100 °C. The objectives of this study were to analyze the sensitivity variation of the sensor with different sensor layer thicknesses resulting from different electrospinning durations, as well as to simulate the wavelength signals generated at different electrospinning durations using COMSOL. The results revealed that the maximum wavelength sensitivity, transmission loss sensitivity, and linearity of the sensor were 25 dBm/°C, 70 pm/°C, and 0.956, respectively. Longer electrospinning durations resulted in thicker sensor layers and higher sensor sensitivity, that wavelength sensitivity of the sensor increased by 42%.

4th Generation Biomaterials Based on PVDF-Hydroxyapatite Composites Produced by Electrospinning: Processing and Characterization

“…The electrospinning technique is a very effective technique in the production of scaffolds formed from micro- and nanometric polymeric fibers that could be applied in air filtration and facemasks, wound dressings, optical fiber sensors, water purification, blood vessels, axons, adsorption, photosensitive materials, electronics, drug delivery systems and various other fields of science and technology [ 21 , 22 , 23 , 24 ].…”

Transferable microfiber laser arrays for high-sensitivity thermal sensing

“…The relationship between the wavelength shift and temperature shows that the thermal sensing sensitivity of the membrane inlaid with the hybrid microlaser is 0.181 nm °C −1 (Fig. 4d), surpassing most other optical-based temperature sensors 43–46 (Table S1†), and this can be attributed to the enhanced light–matter interactions. 47,48 In addition, a good thermoresponsive performance is observed for this membrane (Fig.…”

Imperfection method based on optical fiber for alcohol content detection sensor

“…Optical fiber-based sensors have a wide wavelength and detection range. In addition, using optical fiber as a sensor has the advantages of simple sensor fabrication, resistance to electromagnetic (EM) wave interference, small size, and high sensitivity [1][2][3][4]. The optical fiber sensor component comprises Single-Mode Fiber (SMF) and Fiber Bragg Grating (FBG).…”