long period-based grating sensors
Application of long-period-grating sensors to respiratory plethysmography
... LPG sensors. An array of up to nine long-period-grating- based curvature sensors on a garment are used to monitor the thoracic and abdominal movements of a human during respi- ...
13
Long period fibre grating as gas sensor for environmental pollution monitoring
... of sensors which utilise the light guiding capability and the intrinsic and extrinsic qualities of optical ...of sensors explaining the characteristics of the fibre which are utilised and the disadvantages ...
375
Design and characterisation of long period grating (LPG) - based optical fibre sensors for acoustic wave detection
... sensor based only on a single loop of single mode ...acoustic sensors, microbend acoustic sensors have also been developed, which will be discussed later in this ...
130
Graphene oxide coated long period grating based fibre optic humidity sensor
... presented, based on a GO coated LPG by exploiting the super permeability of GO to water molecules and its dependency of thermo-optic properties in the presence of water ...stability. Based on these results, ...
5
Modelling of optical fibre long period grafting sensors
... Long period gratings ...A long period grating is a pholoinduced periodic structure which, using I V exposure through an am plitude mask, is w ritten in the core of com m unicatio n ...
186
Non-invasive respiratory monitoring using long-period fiber grating sensors
... Therefore, there is a need for non-invasive respiratory monitoring independent of air leaks and this need is well known to the clinical engineering community [4]. As a consequence, a range of new devices detecting thorax ...
9
On the Validity of the Effective Index Method for Long Period Grating Photonic Crystal Fibers
... of long-period grating (LPG) has had a significant impact on fiber optic ...[5,6] sensors have since been demonstrated. However, for chemical sensors, it is mainly the sensitivity of ...
7
Application of long period gratings sensors to respiratory function monitoring
... curvature sensors on a garment are used to monitor the thoracic and abdominal movements of a human during ...curvature sensors are based upon long period gratings written in a ...
9
Liquid Resin Infusion process monitoring with embedded superimposed long period and short period Bragg grating sensor.
... fibre sensors are generally considered as alternative solutions to measure and localize the amplitudes of applied solicitations, particularly in applications where the information can not be assessed ...fibre ...
8
Graphene oxide-coated Long Period Grating-based fibre optic sensor for relative humidity and external refractive index
... parameter sensors. Further refinement can come from the variation of the period of the grating, to achieve a higher sensitivity, as higher order modes are bound to be more sensitive to the external ...
8
Highly sensitive label free antibody detection using a long period fibre grating sensor
... fast sensors that would be able to replace the current ELISA ...waveguide sensors are also widely applied in detection of biomolecules ...bre based sensor, due to its small size, provides an ...
9
Optical fibre long period grating gas sensor modified with metal organic framework thin films
... There have been limited reports of MOF based sensors, but they indicate their potential to become powerful analytical devices [1]. The main advantage is high chemical selectivity possible by the appropriate ...
18
Implementation of vectorial bend sensors using long-period gratings UV-inscribed in special shape fibres
... In-fibre grating-based sensors have many advantages over conventional electric and alternative fibre optic sensor configurations [1, ...bend sensors capable of curvature measurement with ...
5
Respiratory monitoring using fibre long period grating sensors
... model based signal processing, that the cost and realisation of a sufficiently dense array of sensors is prohibitive, that an off body referencing is required to track specified anatomical location, that in ...
6
The application of a long period grating sensors to human respiratory plethysmography
... curvature sensors interrogated by a set of distributed feedback ...curvature sensors are adhered to a garment to enable them to be used to detect the shape variations of the chest and abdominal regions of a ...
10
The Design of Bending Long Period of Photonic Crystal Fiber Grating Sensors
... PCF long period grating along the longitu- dinal PCF and periodicity radially symmetric distribution, (2) at the PCF transverse structure, the refractive in- dex is uniformly distributed along all ...
8
Application of Fractal Theory in Brick Concrete Structural Health Monitoring
... Fractal geometry developed by the Mandelbrot [10] in the 1970s is a new branch of mathematics, it focuses on the similarity between the parts and the whole, starting di- rectly from the complex non-linear system, and it ...
12
Development of the Biopolymeric Optical Planar Waveguide with Nanopattern
... the grating acts like a weak mirror, and the cumulative effect of all of the weak reflectors results in a very strong combined reflection centered on what is known as the Bragg ...the grating period, ...
6
Distributed Deformation Monitoring for a Single-Cell Box Girder Based on Distributed Long-Gage Fiber Bragg Grating (LFBG) Sensors
... strain; long-gage Fiber Bragg Grating; strain distribution; shear lag effect; shear action 26.. 27.[r] ...
15
Optical characterisation of a long period grating using liquid droplets on an electrowetting-on-dielectric platform
... In this paper we present measurements of the optical transmission characteristics of an unbroken fibre-optofluidic device in which a fluid droplet interacts with light propagating in a single mode fibre incorporating a ...
5