High pressure sensor based on intensity-variation using polymer optical fiber

A Ghaffar, F Ru, J Liu, GY Chen, J Ni, J Liu… - Scientific Reports, 2024‏ - nature.com
Silica fiber under high pressure increases the risk of fiber breakage or permanent
deformation, which may cause sensor failure due to mechanical strength limitations. High …

A low-cost relative humidity sensor using polymer optical fiber based on intensity variation

A Ghaffar, S Hussain, SHA Musavi… - IEEE Sensors …, 2024‏ - ieeexplore.ieee.org
In sensor systems, most sensors are single-point detection, and it is challenging to develop
a multipoint sensor where multiple points can be sensed. This work reports a low-cost …

Analysis of force sensor using polymer optical fiber based on twisting structure

A Ghaffar, Q Li, M Mehdi, S Hussain, YM Jia… - IEEE Sensors …, 2022‏ - ieeexplore.ieee.org
This article highlights an intensity variation-based force sensor for polymer optical fiber
(POF) that relies on the twisting structure. The sensing phenomena of the sensor rely on …

Multiplexing sensors technique for angle and temperature measurement using polymer optical fiber

A Ghaffar, Q Li, M Mehdi, B Das, IH Alvi, Q **e… - Infrared Physics & …, 2023‏ - Elsevier
Various methods are presented to develop fiber optics sensors; among them, the
multiplexing sensor technique requires a complex signal processing procedure that makes a …

Fiber optic sensor embedded in robotic systems for 3-D orientation assessment using polymer fiber

S Hussain, A Ghaffar, SHA Musavi, M Mehdi… - Optical Fiber …, 2023‏ - Elsevier
The present work is considered to installed sensor system to the robotics system. The
structure of 3-D rotational sensor is based on polymer fiber, where two fibers are twisted to …

Sensitivity enhanced all-fiber displacement sensor compatible with passive and intracavity system based on Lyot filter

R Tian, H Zhang, Y Feng, Q Lu, Z Chen, L Xue… - Optics …, 2023‏ - Elsevier
An all-fiber high-sensitivity displacement sensor based on 45°-spliced PM Lyot filter is
proposed and its sensing performance is investigated experimentally. The transfer function …

Characterization of Sensitivity of Time Domain MEMS Accelerometer

E Li, J Jian, F Yang, Z Ma, Y Hao, H Chang - Micromachines, 2024‏ - mdpi.com
This paper characterizes the sensitivity of a time domain MEMS accelerometer. The
sensitivity is defined by the increment in the measured time interval per gravitational …

Simultaneous measurement of liquid level and RI sensor using POF based on twisted structure

MSUK Haider, C Chen, A Ghaffar, S Hussain… - Scientific Reports, 2025‏ - nature.com
In this paper, a dual-parameter liquid level and refractive index (RI) sensor is fabricated
using three pieces of bare polymer optical fibers (POFs), which can independently and …

Real-time determination of soil suction in unsaturated clay based on POF sensor

G Tang, X Ma, H Zhang, Z Liu, Y He - Measurement, 2025‏ - Elsevier
Suction is a crucial property parameter of unsaturated soil, significantly influencing crop
growth in agriculture and the strength, deformation, and seepage characteristics of …

[HTML][HTML] Dynamic rotational sensor using polymer optical fiber for robot movement assessment based on intensity variation

J Shi, A Ghaffar, Y Li, I Mehdi, R Mehdi, F A. Soomro… - Polymers, 2022‏ - mdpi.com
A complex signal processing technique is usually required to process the data in most
sensor design structures, and integration into real applications is also challenging. This work …