Results 11 to 20 of about 2,554 (241)

Design and development of Cu‐Al‐Mn‐Ni shape memory alloy coated optical fibre sensor for condition‐based monitoring of physical systems

IET Collaborative Intelligent Manufacturing, 2021
Online fault detection, isolation and recovery using smart sensors play an important role in intelligent manufacturing system. Fibre optic sensors are very interesting for condition monitoring applications due to the advantage of this technology.
Karthick Subramaniam, Shalini Singh, Sumeet Raikwar, Ashish Kumar Shukla, Iyamperumal Anand Palani   +4 more
doaj   +1 more source

Thermal management of solar photovoltaic panels using a fibre Bragg grating sensor-based temperature monitoring

Case Studies in Thermal Engineering, 2022
Solar photovoltaic (PV) performance is affected by increased panel temperature. Maintaining an optimal PV panel temperature is essential for sustaining performance and maximizing the productive life of solar PV panels. Current temperature sensors possess
Samiappan Dhanalakshmi, Venkatesh Chakravartula, Rajamanickam Narayanamoorthi, Ramamoorthy Kumar, Gerard Dooly, Dinesh Babu Duraibabu, Ramalingam Senthil   +6 more
doaj   +1 more source

Investigation on the Influence of Humidity on Stimulated Brillouin Backscattering in Perfluorinated Polymer Optical Fibers

Sensors, 2018
In this paper perfluorinated graded-index polymer optical fibers are characterized with respect to the influence of relative humidity changes on spectral transmission absorption and Rayleigh backscattering.
Andy Schreier, Sascha Liehr, Aleksander Wosniok, Katerina Krebber   +3 more
doaj   +1 more source

The Present and Future Status of Fibre Optic Sensors in Industry

Measurement + Control, 1987
The applicational requirements of sensors for the industrial market are discussed. The advantages and disadvantages of fibre optic industrial sensors are reviewed against these requirements and against the competitive advantages of electronic sensors. It
R S Medlock
doaj   +1 more source

A fibre-optic ultrasound sensor of simple fabrication [PDF]

JASA Express Letters
The small size, high sensitivity, and immunity to electromagnetic interference of fibre-optic ultrasound sensors make them highly attractive for applications in biomedical imaging and metrology.
Fadwa Shagroun, Richard James Colchester, Erwin Jozef Alles   +2 more
doaj   +1 more source

Enhancing fibre-optic distributed acoustic sensing capabilities with blind near-field array signal processing

Nature Communications, 2022
Here, the authors demonstrate a blind and sparse near-field array signal processing approach to enhance the measurement quality of fibre-optic distributed acoustic sensors. It further enables the accurate estimation of the spatial coordinates of acoustic
Felipe Muñoz, Marcelo A. Soto
doaj   +1 more source

Humidity Sensing by Chitosan-Coated Fibre Bragg Gratings (FBG)

Sensors, 2021
In this work, we report novel relative humidity sensors realized by functionalising fibre Bragg gratings with chitosan, a moisture-sensitive biopolymer never used before for this kind of fibre optic sensor.
Rosaria D’Amato, Andrea Polimadei, Gaetano Terranova, Michele Arturo Caponero   +3 more
doaj   +1 more source

Advances in fibre optic based geotechnical monitoring systems for underground excavations

International Journal of Mining Science and Technology, 2019
Geotechnical stability is a major concern for the long-term safety and integrity of underground infrastructures such as tunnels, railway stations, mine shafts and hydraulic power chambers.
Hongkui Gong, Mehmet S. Kizil, Zhongwei Chen, Moe Amanzadeh, Ben Yang, Saiied M. Aminossadati   +5 more
doaj   +1 more source

Universal Signal Conditioning Technique for Fiber Bragg Grating Sensors in PLC and SCADA Applications

Instruments, 2017
Optical fibre sensors, such as Fibre Bragg Gratings (FBGs), are growing in their utilisation, although very niche in their applications. To enable a more diverse range of end users, expensive application-specific optical fibre interrogation hardware ...
Gary Allwood, Graham Wild, Steven Hinckley   +2 more
doaj   +1 more source

Dual Measurement of Strain and Temperature Using the Combination of Er -Doped Fibre Fluorescence Lifetime and a Fibre Bragg Grating

Measurement + Control, 2001
Fibre optic sensing devices have been produced for the dual measurement of strain and temperature using the combined properties of fibre Bragg gratings and the fluorescence lifetime of erbium-doped fibre.
S.A. Wade, D.I. Forsyth, Q. Guofu, X. Chen, T. S. Chuan, W. Yong, T. Sun, K T V Grattan   +7 more
doaj   +1 more source