Results 41 to 50 of about 405,286 (224)

Etched Polymer Fibre Bragg Gratings and Their Biomedical Sensing Applications

Sensors, 2017
Bragg gratings in etched polymer fibres and their unique properties and characteristics are discussed in this paper. Due to the change in material and mechanical properties of the polymer fibre through etching, Bragg gratings inscribed in such fibres ...
Ginu Rajan, Kishore Bhowmik, Jiangtao Xi, Gang-Ding Peng   +3 more
doaj   +1 more source

A fibre Bragg grating based inclinometer system for ground movement measurement [PDF]

, 2010
The measurement of ground movement is an essential part of many geotechnical engineering operations. For decades, inclinometer systems have traditionally been used for this purpose to provide crucial information to engineers and researchers.
Ricardo Correia, Staines, Stephen E., Stephen Staines, Ralph P. Tatam, Tatam, Ralph P., Chehura, Edmon, Correia, Ricardo N., James, Stephen W., Stephen W. James, Li, Jin, Jin Li, Edmond Chehura   +11 more
core   +1 more source

A transverse loading technique to enhance the pressure measurement capability of fibre Bragg gratings [PDF]

, 2008
A fibre optic pressure sensor based on the application of a transverse load onto an epoxy-resin material embedded over a sub-section of a fibre Bragg grating (FBG) is presented.
R. Correia, E. Chehura, R. P. Tatam, Tatam, Ralph P., S. W. James, Chehura, Edmon, Correia, Ricardo N., James, Stephen W.   +7 more
core   +1 more source

Ionic Gating of Liquid‐Crystal‐Like Pteridine Assemblies Enables Tunable Light Scattering

Advanced Materials, EarlyView.
Tunable optical properties emerge through developmentally regulated ionic gating, which transforms disordered, ultraviolet (UV)‐absorbing organelles into concentrically ordered, liquid‐crystal‐like light scatterers. By integrating analyses of pteridine composition, potassium‐dependent assembly, hierarchical ultrastructure, and optical behavior, the ...
Sourabh Bera, Zohar Eyal, Yael Noy, Yuval Barzilay, Siddharth Sahoo, Srikant Moharana, Avi Baram, Tali Lerer‐Goldshtein, Neta Varsano, Bar Bader, Lothar Houben, Uwe Heinig, Iddo Pinkas, Moshe Goldsmith, Tamar Unger, Shira Albeck, Andrea Sorrentino, Maxim Itkin, Sergey Malitsky, Ziv Porat, Ido Hadar, Venkata Jayasurya Yallapragada, Dvir Gur   +22 more
wiley   +1 more source

Growth Characteristics of Fiber Bragg Gratings Fabricated in High Germania Boron Co-Doped Fiber

International Islamic University Malaysia Engineering Journal, 2012
This paper reports and provides an explanation for the growth characteristics of fibre Bragg gratings (FBGs) fabricated  in high germania boron co-doped optical fiber by using a continuous wave (CW) doubled frequency Argon ion laser as an UV light source.
S. W. Harun , P. Poopalan and H. Ahmad
doaj   +1 more source

Toward Perception‐Native Electronic Skin: Bio‐Inspired In‐/Near‐Sensor and Neuromorphic Computing for Humanoid Robots

Advanced Materials Technologies, EarlyView.
Dense tactile streams from across the humanoid body converge on collide in a central wiring and data bottleneck. By relocating computation closer to and then into the skin itself, near‐ and in‐sensor architectures, together with neuromorphic computing, chart a path toward perception‐native electronic skin, in which the conversion of stimulus into ...
Mijin Kim, Chang‐Jae Beak, Jiyoung Park, Youngdo Jung, Sunjong Oh, Sin‐Hyung Lee, Bo‐Yeon Lee   +6 more
wiley   +1 more source

Fibre Bragg grating encapted with no-core fibre sensors for SRI and temperature monitoring

Results in Physics, 2018
In this work, a Fibre Bragg grating (FBG) encapted with no-core fibre (NCF) as surrounding refractive index (SRI) and temperature sensors are practically demonstrated.
S. Daud, I.S. Amiri, A.F.A. Noorden, J. Ali, P. Yupapin   +4 more
doaj   +1 more source

Microscale 3D‐Printed Digital Strain Switches for Embedded Mechanical Computation

Advanced Materials Technologies, EarlyView.
Microscale 3D‐printed strain switches on flexible films convert deformation into native digital signals at geometry defined thresholds. A closed form model predicts switching from 3000 to 15 000 microstrain and is validated across 110 devices. Reliable ohmic closure and strain activated AND, OR, and XOR logic point toward low‐power mechanical ...
Regan Kubicek, Daniel Quinn, Gabriel Smith, Sarah Bergbreiter   +3 more
wiley   +1 more source

A single three-parameter tilted fibre Bragg grating sensor to monitor the thermosetting composite curing process

Advanced Manufacturing: Polymer & Composites Science, 2022
The unique sensing features of the tilted Fibre Bragg Grating (TFBG) as a single three-parameter optical sensor are demonstrated in this work, to monitor the manufacturing process of composite materials produced using Vacuum Assisted Resin Transfer ...
Luigi Fazzi, Giacomo Struzziero, Clemens Dransfeld, Roger Michael Groves   +3 more
doaj   +1 more source

Individual Cell-Level Temperature Monitoring of a Lithium-Ion Battery Pack

Sensors, 2023
The work described herein details the deployment of an optical fibre strand with five fibre Bragg grating (FBG) sensors for individual cell-level temperature monitoring of a three-cell lithium-ion battery pack.
Keith M. Alcock, Álvaro González-Vila, Mustehsan Beg, Francisco Vedreño-Santos, Zuansi Cai, Lourdes S. M. Alwis, Keng Goh   +6 more
doaj   +1 more source