Browsing by Author "Staines, Stephen"

Browsing by Author "Staines, Stephen"

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  • Application of fibre optic sensing systems to measure rotor blade structural dynamics 
    Weber, Simone; Kissinger, Thomas; Chehura, Edmond; Staines, Stephen; Barrington, James; Mullaney, Kevin; Fragonara, Luca Zanotti; Petrunin, Ivan; James, Stephen; Lone, Mudassir; Tatam, Ralph P. (Elsevier, 2021-03-09)
    This paper compares two fibre optic sensing techniques for vibration characterisation: (a) optical fibre Bragg grating (FBG) strain gauges and (b) a novel direct fibre optic shape sensing (DFOSS) approach based on differential ...
  • Bladesense – a novel approach for measuring dynamic helicopter rotor blade deformation 
    Weber, Simone; Southgate, Dominic; Mullaney, Kevin; James, Stephen; Rutherford, Robert; Sharma, Anuj; Lone, Mudassir; Kissinger, Thomas; Chehura, Edmond; Staines, Stephen; Pekmezci, Huseyin; Fragonara, Luca Zanotti; Petrunin, Ivan; Williams, Dan; Moulitsas, Irene; Cooke, Alastair; Rosales, Waldo; Tatam, Ralph P.; Morrish, Peter; Fairhurst, Mark; Atack, Richard; Bailey, Gordon; Morley, Stuart (European Rotorcraft Forum, 2018-12-31)
    Technologies that allow accurate measurement of rotorblade dynamics can impact almost all areas of the rotorcraft sector; ranging from maintenance all the way to blade design. The BladeSense project initiated in 2016 aims ...
  • Monitoring the fabrication of tapered optical fibres 
    Mullaney, Kevin; Correia, Ricardo; Staines, Stephen; James, Stephen W.; Tatam, Ralph P. (SPIE, 2017-04-23)
    A variety of optical methods to enhance the process of making optical fibre tapers are explored. A thermal camera was used to both refine the alignment of the optical components and optimize the laser power profile during ...
  • Optical fibre pressure sensing using a frequency modulated laser-based signal processing technique 
    Barrington, James; James, Stephen; Kissinger, Thomas; Staines, Stephen; Prince, Simon; Alcusa Saez, Erica; Lawson, Nicholas J.; Tatam, Ralph P. (IOP Publishing, 2023-04-21)
    Range resolved interferometry (RRI) applied to the interrogation of an extrinsic Fabry–Perot based pressure sensor in laboratory and wind tunnel environments is presented. A simple, compact sensor head design was fabricated ...
  • Optimised process for fabricating tapered long period gratings 
    Mullaney, Kevin; Staines, Stephen; James, Stephen; Tatam, Ralph P. (SPIE, 2017-04-23)
    The process of fabricating tapered long period gratings (TLPGs) using a CO2 laser is described. TLPGs with a period spacing of 378 μm, were fabricated by optimization of the taper waist diameter and careful control of the ...
  • Optimized process for fabricating ultra-short tapered long period gratings 
    Mullaney, Kevin; Staines, Stephen; James, Stephen; Ralph, Tatam (IEEE, 2017-11-03)
    The process of fabricating tapered long period gratings (TLPGs) using a CO2 laser is described. The objective of this work is to optimize the CO2 laser based fabrication of TLPGs so that their transmission spectra are ...
  • Production process monitoring and post-production strain measurement on a full-size carbon-fibre composite aircraft tail cone assembly using embedded optical fibre sensors 
    Chehura, Edmon; James, Stephen W.; Staines, Stephen; Groenendijk, Chris; Cartié, Denis; Portet, Stephanie; Hugon, Michael; Tatam, Ralph P. (IOP, 2020-07-13)
    Multiplexed optical fibre sensors were embedded into a carbon-fibre-reinforced-preform during the industrial production of a full-sized, one-piece tail cone assembly for a regional jet aircraft. Optical fibre Fresnel sensors ...
  • Railway track component condition monitoring using optical fibre Bragg grating sensors 
    Buggy, Stephen J.; James, Stephen W.; Staines, Stephen; Carroll, R.; Kitson, P.; Farrington, D.; Drewett, L.; Jaiswal, J.; Tatam, Ralph P. (2016-03-22)
    The use of optical fibre Bragg grating (FBG) strain sensors to monitor the condition of safety critical rail components is investigated. Fishplates, switchblades and stretcher bars on the Stagecoach Supertram tramway in ...
  • The use of range-resolved interferometry for multi-parameter sensing in a wind tunnel 
    Barrington, James; James, Stephen; Kissinger, Thomas; Staines, Stephen; Prince, Simon; Alucsa-Saeza, Erica; Lawson, Nicholas J.; Tatam, Ralph P. (SPIE, 2023-05-23)
    The work presented demonstrates that key parameters in aerodynamic structural characterisation of pressure, strain, and structural dynamics, can be all measured via optical fibre sensors interrogated using the principles ...
  • Wavelength-locking of a semiconductor laser using an electronic technique 
    Mullaney, Kevin; Hodgkinson, Jane; Staines, Stephen; Tatam, Ralph P. (SPIE, 2019-03-04)
    This work describes a novel system to control the stability of a 1583 nm telecommunications laser diode via measurement of junction voltage. This electronic technique dispenses with the optical components used in ...