Photonic skin for pressure and strain sensing

Xianfeng Chen, C. Zhang, B. van Hoe, D.J. Webb, K. Kalli, G. van Steenberge, G.-D. Peng

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

In this paper, we report on the strain and pressure testing of highly flexible skins embedded with Bragg grating sensors recorded in either silica or polymer optical fibre. The photonic skins, with a size of 10cm x 10cm and thickness of 1mm, were fabricated by embedding the polymer fibre or silica fibre containing Bragg gratings in Sylgard 184 from Dow Corning. Pressure sensing was studied using a cylindrical metal post placed on an array of points across the skin. The polymer fibre grating exhibits approximately 10 times the pressure sensitivity of the silica fibre and responds to the post even when it is placed a few centimetres away from the sensing fibre. Although the intrinsic strain sensitivities of gratings in the two fibre types are very similar, when embedded in the skin the polymer grating displayed a strain sensitivity approximately 45 times greater than the silica device, which also suffered from considerable hysteresis. The polymer grating displayed a near linear response over wavelength shifts of 9nm for 1% strain. The difference in behaviour we attribute to the much greater Young's modulus of the silica fibre (70 GPa) compared to the polymer fibre (3 GPa).
Original languageEnglish
Title of host publicationOptical Sensing and Detection
EditorsFrancis Berghmans, Anna G. Mignani, Chris A. van Hoof
Place of PublicationBellingham, WA (US)
PublisherSPIE
Number of pages9
ISBN (Print)978-0-8194-8199-3
DOIs
Publication statusPublished - 13 May 2010
EventOptical sensing and detection - Brussels, Belgium
Duration: 12 Apr 201015 Apr 2010

Publication series

NameSPIE proceedings
PublisherSPIE
Volume7726
ISSN (Print)0277-786X
ISSN (Electronic)2410-9045

Conference

ConferenceOptical sensing and detection
CountryBelgium
CityBrussels
Period12/04/1015/04/10

Bibliographical note

Xianfeng Chen ; C. Zhang ; B. Van Hoe ; D. J. Webb ; K. Kalli ; G. Van Steenberge and G.-D. Peng; "Photonic skin for pressure and strain sensing", Francis Berghmans ; Anna G. Mignani; and Chris A. van Hoof (eds) Proc. SPIE 7726, Optical Sensing and Detection, 772604 (May 13, 2010).

Copyright 2010 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

http://dx.doi.org/10.1117/12.854235

Keywords

  • photonic skin
  • optical fibre
  • Bragg grating
  • polymer optical fibre
  • sensor
  • pressure
  • strain
  • loading

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  • Research Output

    • 2 Conference contribution

    Optical fiber sensors embedded in flexible polymer foils

    van Hoe, B., van Steenberge, G., Bosman, E., Missinne, J., Geernaert, T., Berghmans, F., Webb, D. & van Daele, P., 13 May 2010, Optical Sensing and Detection. Berghmans, F., Mignani, A. G. & van Hoof, C. A. (eds.). Bellingham, WA (US): SPIE, 10 p. 772603. (SPIE Proceedings; vol. 7726).

    Research output: Chapter in Book/Report/Conference proceedingConference publication

    Open Access
    File
  • Polymer photonic crystal fibre for sensor applications

    Webb, D. J., 13 May 2010, Optical Sensing and Detection. Berghmans, F., Mignani, A. G. & van Hoof, C. A. (eds.). Bellingham, WA (US): SPIE, 8 p. 77260Q. (SPIE Proceedings; vol. 7726).

    Research output: Chapter in Book/Report/Conference proceedingConference publication

    Open Access
    File
  • Cite this

    Chen, X., Zhang, C., van Hoe, B., Webb, D. J., Kalli, K., van Steenberge, G., & Peng, G-D. (2010). Photonic skin for pressure and strain sensing. In F. Berghmans, A. G. Mignani, & C. A. van Hoof (Eds.), Optical Sensing and Detection [772604] (SPIE proceedings; Vol. 7726). SPIE. https://doi.org/10.1117/12.854235