Polymer optical fiber liquid level sensor: A review

R He, C Teng, S Kumar, C Marques… - IEEE Sensors …, 2021 - ieeexplore.ieee.org
Polymer optical fiber (POF) level sensors have a lot of potential in liquid level sensing
because of their inherent safety, chemical corrosion resistance, anti-electromagnetic …

Multifunctional integration of optical fibers and nanomaterials for aircraft systems

C Marques, A Leal-Júnior, S Kumar - Materials, 2023 - mdpi.com
Smart sensing for aeronautical applications is a multidisciplinary process that involves the
development of various sensor elements and advancements in the nanomaterials field. The …

A machine learning approach for simultaneous measurement of magnetic field position and intensity with fiber Bragg grating and magnetorheological fluid

AG Leal-Junior, V Campos, C Díaz, RM Andrade… - Optical Fiber …, 2020 - Elsevier
This paper presents the simultaneous assessment of magnetic field intensity and position
using a fiber Bragg grating (FBG) array immersed in magnetorheological (MR) fluid. The …

Diaphragm-embedded optical fiber sensors: A review and tutorial

AG Leal-Junior, C Marques - IEEE Sensors Journal, 2020 - ieeexplore.ieee.org
In this article, we thoroughly discuss many aspects of diaphragm-embedded optical fiber
sensors covering industrial, robotics and medical applications: from the modeling to field …

Sagnac interferometer-based optical fiber strain sensor with exceeding free spectral measurement range and high sensitivity

C Liu, H Chen, Q Chen, Z Gao, B Wu, X Fan… - Optics & Laser …, 2023 - Elsevier
Sagnac interferometer-based sensors have shown high sensitivity, but limited measurement
range due to the free spectral range (FSR) limitation especially the higher the sensitivity. In …

Development of liquid level measurement technology: A review

P Mohindru - Flow Measurement and Instrumentation, 2023 - Elsevier
Depending on various applications, the process control industry uses liquid-level sensors of
different principles. Due to the dynamic nature of liquid such as water, wastewater …

A fiber Bragg gratings pair embedded in a polyurethane diaphragm: Towards a temperature-insensitive pressure sensor

A Leal-Junior, A Frizera, C Marques - Optics & Laser Technology, 2020 - Elsevier
We report the development of a temperature-insensitive pressure sensor based on a pair of
fiber Bragg gratings (FBGs) embedded in a polyurethane diaphragm. The pressure is …

Multimode optical fiber sensors: from conventional to machine learning-assisted

K Wang, Y Mizuno, X Dong, W Kurz… - Measurement …, 2023 - iopscience.iop.org
Multimode fiber (MMF) sensors have been extensively developed and utilized in various
sensing applications for decades. Traditionally, the performance of MMF sensors was …

Machine learning techniques for liquid level estimation using FBG temperature sensor array

KP Nascimento, A Frizera-Neto, C Marques… - Optical Fiber …, 2021 - Elsevier
This paper proposes the use of the fiber Bragg grating (FBG) temperature sensors array to
estimate the fluid level. The tank is 100 cm in height and 30 cm in width, with 9 FBG sensors …

Portable multihole plastic optical fiber sensor for liquid-level and refractive index monitoring

Y Ye, C Zhao, Z Wang, C Teng… - IEEE Sensors …, 2022 - ieeexplore.ieee.org
In this article, we report a low-cost method to fabricate plastic optical fiber (POF) liquid-level
and refractive index (RI) sensors integrated with smartphones by molds and drilling …