Skip to main content
placeholder image

High intrinsic sensitivity etched polymer fiber Bragg grating pair for simultaneous strain and temperature measurements

Journal Article


Download full-text (Open Access)

Abstract


  • A sensing configuration for simultaneous measurement of strain and temperature with enhanced intrinsic sensitivity based on a fiber Bragg grating (FBG) pair with one grating inscribed in the etched and the other in unetched polymer fiber region is demonstrated. A poly (methyl methacrylate) based single-mode polymer fiber is etched to different diameters, and it is observed that etching can lead to change in the material properties of the fiber, such as Young's modulus and thermal expansion coefficient, which can play a vital role in improving its intrinsic sensing capabilities. Thus, exploiting the different strain and temperature sensitivities exhibited by etched and unetched polymer FBGs, strain and temperature can be simultaneously measured with very high sensitivity. Experimental results show that rms deviations of ±8.42 μ∈ and ±0.39 °C for strain and temperature, respectively, in a real simultaneous measurement. The effect of individual thermal and strain sensitivity coefficients on measurement accuracy is also analyzed.

UOW Authors


  •   Bhowmik, Kishore (external author)
  •   Peng, Gang-Ding (external author)
  •   Luo, Yanhua (external author)
  •   Ambikairajah, Eliathamby (external author)
  •   Lovric, Vedran (external author)
  •   Walsh, William R. (external author)
  •   Rajan, Ginu

Publication Date


  • 2016

Citation


  • K. Bhowmik, G. Peng, Y. Luo, E. Ambikairajah, V. Lovric, W. R. Walsh & G. Rajan, "High intrinsic sensitivity etched polymer fiber Bragg grating pair for simultaneous strain and temperature measurements,"^^ IEEE Sensors Journal, vol. 16, (8) pp. 2453-2459, 2016.

Scopus Eid


  • 2-s2.0-84962124131

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=6383&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5355

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 2453

End Page


  • 2459

Volume


  • 16

Issue


  • 8

Place Of Publication


  • United States

Abstract


  • A sensing configuration for simultaneous measurement of strain and temperature with enhanced intrinsic sensitivity based on a fiber Bragg grating (FBG) pair with one grating inscribed in the etched and the other in unetched polymer fiber region is demonstrated. A poly (methyl methacrylate) based single-mode polymer fiber is etched to different diameters, and it is observed that etching can lead to change in the material properties of the fiber, such as Young's modulus and thermal expansion coefficient, which can play a vital role in improving its intrinsic sensing capabilities. Thus, exploiting the different strain and temperature sensitivities exhibited by etched and unetched polymer FBGs, strain and temperature can be simultaneously measured with very high sensitivity. Experimental results show that rms deviations of ±8.42 μ∈ and ±0.39 °C for strain and temperature, respectively, in a real simultaneous measurement. The effect of individual thermal and strain sensitivity coefficients on measurement accuracy is also analyzed.

UOW Authors


  •   Bhowmik, Kishore (external author)
  •   Peng, Gang-Ding (external author)
  •   Luo, Yanhua (external author)
  •   Ambikairajah, Eliathamby (external author)
  •   Lovric, Vedran (external author)
  •   Walsh, William R. (external author)
  •   Rajan, Ginu

Publication Date


  • 2016

Citation


  • K. Bhowmik, G. Peng, Y. Luo, E. Ambikairajah, V. Lovric, W. R. Walsh & G. Rajan, "High intrinsic sensitivity etched polymer fiber Bragg grating pair for simultaneous strain and temperature measurements,"^^ IEEE Sensors Journal, vol. 16, (8) pp. 2453-2459, 2016.

Scopus Eid


  • 2-s2.0-84962124131

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=6383&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5355

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 2453

End Page


  • 2459

Volume


  • 16

Issue


  • 8

Place Of Publication


  • United States