Optical sensors based on plastic fibers

L Bilro, N Alberto, JL Pinto, R Nogueira - Sensors, 2012 - mdpi.com
The recent advances of polymer technology allowed the introduction of plastic optical fiber in
sensor design. The advantages of optical metrology with plastic optical fiber have attracted …

Review of optical fiber sensors for deformation measurement

H Di, Y Xin, J Jian - Optik, 2018 - Elsevier
The curvature of loaded structures is an important parameter in the field of strength of
materials. The traditional curvature measurement methods have their limitations in …

Wearable low-cost system for human joint movements monitoring based on fiber-optic curvature sensor

DZ Stupar, JS Bajic, LM Manojlovic… - IEEE Sensors …, 2012 - ieeexplore.ieee.org
In this paper, a measurement system for human joint movements monitoring based on a
simple and low-cost intensity modulated fiber-optic curvature sensor is presented. The …

Sensitive zone parameters and curvature radius evaluation for polymer optical fiber curvature sensors

AG Leal-Junior, A Frizera, MJ Pontes - Optics & Laser Technology, 2018 - Elsevier
Polymer optical fibers (POFs) are suitable for applications such as curvature sensors, strain,
temperature, liquid level, among others. However, for enhancing sensitivity, many polymer …

Polymer optical fiber for angle and torque measurements of a series elastic actuator's spring

AG Leal-Junior, A Frizera, C Marques… - Journal of Lightwave …, 2018 - ieeexplore.ieee.org
Series elastic actuators (SEAs) can provide low output impedance, bandwidth close to the
human movement, and direct measurement of torque through the spring deflection. These …

Analytical model for a polymer optical fiber under dynamic bending

AGL Junior, A Frizera, MJ Pontes - Optics & Laser Technology, 2017 - Elsevier
Advantages such as sensibility in bending, high fracture toughness, and high sensibility in
strain enable the application of polymer optical fibers as sensors for strain, temperature …

Wearable cardiorespiratory sensor for real-time monitoring with smartphone integration

H Zhang, Z Wang, C Teng, S Kumar… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In this study, we propose a novel portable wearable cardiorespiratory sensor integrated with
a smartphone, fabricated from plastic optical fiber (POF) and polydimethylsiloxane (PDMS) …

Plastic optical fiber integrated with smartphone for gait monitoring

J Chen, C Teng, R Kuang, Z Wang, Y Yao… - IEEE Sensors …, 2023 - ieeexplore.ieee.org
Correctly identifying gait patterns and measuring characteristics like stride frequency, step
count, gait phase, and plantar pressure in gait are essential for disease assessment and …

Analytical analysis of side-polished plastic optical fiber as curvature and refractive index sensor

L Bilro, NJ Alberto, LM Sá… - Journal of lightwave …, 2011 - ieeexplore.ieee.org
The modeling of a side-polished plastic optical fiber as a sensor of two distinct physical
parameters is presented. A comprehensive analytical study is performed using a geometric …

Polymer optical fiber goniometer: A new portable, low cost and reliable sensor for joint analysis

A Rezende, C Alves, I Marques, MA Silva, E Naves - Sensors, 2018 - mdpi.com
The quantitative measurement of an articular motion is an important indicator of its functional
state and for clinical and pathology diagnoses. Joint angle evaluation techniques can be …