Results 61 to 70 of about 7,750 (233)

From Flexible to Conformable Pressure Sensors: Mechanisms, Materials, and Biomedical Applications

open access: yesAdvanced Electronic Materials, EarlyView.
This review highlights recent progress, challenges and future opportunities in pressure sensing for advanced biomedical applications. We summarize key transduction mechanisms and emerging material strategies, discuss representative wearable and implantable applications for continuous physiological monitoring and provide a focused perspective on barrier
Rishabh B. Mishra   +2 more
wiley   +1 more source

A polarisation maintaining fibre Bragg grating interrogation system for multi- axis strain sensing [PDF]

open access: yes, 2002
Fibre Bragg gratings (FBGs) written into polarisation maintaining (PM) fibres have been employed for multi-axis strain and temperature sensing. In this paper we report the development of a FBG interrogation system that is capable of detecting ...
Steven E. Staines   +7 more
core   +1 more source

Investigation of changes in the sensitivity of a fiber Bragg grating to temperature and strain using coatings from low-melting metal

open access: yesНаучно-технический вестник информационных технологий, механики и оптики
We carried out the development and study of methods for changing the sensitivity of Fiber Bragg Gratings (FBG) to temperature and strain by applying various low-melting metals.
E. A. Maiorova   +3 more
doaj   +1 more source

Performance evaluation and enhancement of apodized fiber Bragg grating for dispersion compensation

open access: yesAIP Advances, 2021
The apodization function has a significant impact on the state of the art of group delay, dispersion compensation, and acceptable decrease in side lobes in the spectrum of Fiber Bragg Grating (FBG) reflection.
Bassem Adel Naguib   +3 more
doaj   +1 more source

Modeling and Simulation of Fiber Bragg Grating (Fbg) as A Strain Sensor

open access: yesOriental journal of computer science and technology, 2017
This study presents the modelling, simulation, and characterization of the Fiber Bragg grating (FBG) on maximum reflectivity, bandwidth, the effect of applied strain to the wavelength shift, ʎB and sensitivity of the wavelength shift with strain for optical sensing system.
openaire   +3 more sources

Wavelength and Pulsewidth Tunable Flexible CsPbBr3 Perovskite Microlasers by Mechanical Stress Modulation

open access: yesAdvanced Electronic Materials, EarlyView.
Mechanically tunable all‐organic CsPbBr3 perovskite microlasers on a flexible PET substrate is demonstrated, enabling simultaneous wavelength and pulsewidth modulation of laser emission. The strain–photon synergetic coupling mechanism is revealed.
Zhaohuan Cai   +6 more
wiley   +1 more source

Phase controlled integrated interferometric single-sideband filter based on planar Bragg gratings implementing photonic Hilbert transform [PDF]

open access: yes, 2013
The first monolithically integrated all-optical single-sideband filter based on photonic Hilbert transform and planar Bragg gratings is proposed and experimentally demonstrated.
Smith, P.G.R.   +6 more
core   +1 more source

Towards Advanced Intelligent and Perceptive Soft Grippers

open access: yesAdvanced Intelligent Systems, EarlyView.
Implementing soft yet strong and intelligent soft grippers request innovative and creative solutions in designing soft bodies and seamlessly integrating actuated systems with hierarchical sensing. This review systematically analyses soft grippers with a deep understanding of core components, from fundamental design principles to actuation and sensing ...
Haneul Kim   +4 more
wiley   +1 more source

The Study on the Spectral Analysis of Fiber Bragg Grating (FBG) as a Strain Sensor

open access: yesInternational Journal for Research in Applied Science and Engineering Technology, 2023
Abstract: By adjusting the grating length and refractive index change, parameters of the Fibre Bragg grating which are the effective refractive index, Bragg wavelength, grating period, and strain-optic constant are provided and discussed, along with the characterization of the grating, including strain, Bragg wavelength shift, spectral response, and ...
openaire   +1 more source

Omnidirectional Shape Proprioception for Untethered Shape Memory Alloy‐Driven Soft Robotic Arms

open access: yesAdvanced Intelligent Systems, EarlyView.
A lightweight, modular soft robotic arm employs SMA actuation and a multi‐Hall‐magnet sensing system to achieve accurate omnidirectional shape proprioception. Each 35 g segment enables scalable assembly, while robust proprioception supports versatile navigation and manipulation in complex, unstructured environments.
Yiming Ouyang   +7 more
wiley   +1 more source

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