Optical and Fiber Optical Sensors for Aerospace Applications

A special issue of Aerospace (ISSN 2226-4310).

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 11358

Special Issue Editor


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Guest Editor
Physics Department, University of Ioannina, 45100 Ioannina, Greece
Interests: photonics; fiber optic sensors; aerospace
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Special Issue Information

Dear Colleagues,

Optical and fiber optical-based sensors have constantly been developed and used in a number of applications in difficult environments such as oil exploration, chemical sensing, smart materials, and as such can be particularly beneficial to the aerospace industry. Although fiber optic-based sensors have been researched quite extensively, primarily in structural health-monitoring applications, they have not been adopted widely in aerospace applications. To date, the most successful fiber optic sensor is probably the optical gyroscope, based on the Syniac interferometer, but there is great potential for other applications of optical and fiber optical sensors in aerospace, such as chemical and gas sensing in the aircraft cabin and cargo bay, aircraft safety and security, Lider, ice detection, and many others. 

The aim of this Special Issue is to provide an overview of recent advances in optical and fiber optical sensors for aerospace applications, and authors are invited to submit full research articles and review manuscripts addressing (but not limited to) the following topics: 

Fiber optic sensors for aerospace

  • Structural health monitoring
  • Distributed sensors
  • Fiber Bragg gratings
  • Long period gratings
  • Spatial fibers
  • Photonic crystal fibers
  • Whispering gallery mode sensors
  • Non liner sensors (Brillion, Raman)
  • Chemical and gas sensors
  • Ice accretion and ice crystals detection
  • Magnetic and electromagnetic sensors

Evanescent optic sensors for aerospace

  • Fiber optics
  • Fiber tapers
  • Planer waveguides
  • In chip optical detection
  • Plasmonic sensors

Interferometer-based sensors for aerospace

  • Syniac interferometer
  • Michelson interferometer
  • Mach Zehnder interferometer
  • Optical ring resonator

Remote sensing

  • Lidar
  • Passive optical sensors

Prof. Dr. Aris Ikiades
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Aerospace is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • optical sensors
  • fiber optic sensors
  • aerospace sensors

Published Papers (2 papers)

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Research

14 pages, 3122 KiB  
Article
Strain Measurement on Cracks Using Fiber Bragg Gratings for Use in Aircraft Composite Skin Repairs
by Aris A. Ikiades
Aerospace 2020, 7(9), 138; https://doi.org/10.3390/aerospace7090138 - 22 Sep 2020
Cited by 5 | Viewed by 2457
Abstract
Fiber Bragg grating (FBG) sensors have been widely used for measurements of strain and temperature in a host of different applications, including aerospace in composite wings, fuselage structures, and other critical components. Here, we report on a method to measure highly localized intense [...] Read more.
Fiber Bragg grating (FBG) sensors have been widely used for measurements of strain and temperature in a host of different applications, including aerospace in composite wings, fuselage structures, and other critical components. Here, we report on a method to measure highly localized intense stress fields, generated at the initialization point of a crack, or crack-tip, using Fiber Bragg Gratings (FBG) inscribed in highly photosensitive hydrogenated germanium and boron co-doped fiber. From the spectral characteristics of short and long FBGs, bonded on a test aluminum coupon with a crack, which simulated damaged skins of an aircraft, the local stresses near the cracks were measured and assessed. As a case study, bespoke composite repair patches were designed and bonded on a coupon, incorporating a number of gratings to monitor the stress distribution with applied force in the composite patch, near the crack. Full article
(This article belongs to the Special Issue Optical and Fiber Optical Sensors for Aerospace Applications)
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13 pages, 3769 KiB  
Article
Calibration of a Load Measurement System for an Unmanned Aircraft Composite Wing Based on Fibre Bragg Gratings and Electrical Strain Gauges
by Łukasz Święch
Aerospace 2020, 7(3), 27; https://doi.org/10.3390/aerospace7030027 - 13 Mar 2020
Cited by 13 | Viewed by 7586
Abstract
This paper presents the issues concerning calibration of a measurement system for monitoring the cross-sectional forces and moments of an unmanned aircraft’s wing. A composite cantilever wing with built-in measurement systems based on electrical resistance and Fibre Bragg Grating strain gauges has been [...] Read more.
This paper presents the issues concerning calibration of a measurement system for monitoring the cross-sectional forces and moments of an unmanned aircraft’s wing. A composite cantilever wing with built-in measurement systems based on electrical resistance and Fibre Bragg Grating strain gauges has been made for the purpose of the study. Measurement systems placed along the span of the wing consist of strain gauges arranged in a manner that allows the monitoring of shear force, bending and twisting moments. The calibration process was described in terms of both experimental tests and mathematical formalism. The calibration results were compared for the complete system, consisting of three sensor units, and for various combinations of separated measuring points. For each case, a reading inaccuracy analysis was carried out and conclusions, including recommendations for the design of this kind of measurement system, were formulated. Full article
(This article belongs to the Special Issue Optical and Fiber Optical Sensors for Aerospace Applications)
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