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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1998, Vol. 19 ›› Issue (S1): 35-39.

• 论文 • Previous Articles     Next Articles

SIMULTANEOUS MEASUREMENTS OF STRAIN AND TEMPERATURE IN SMART STRUCTURES USING FIBER GRATING AND RAMAN SCATTERING

Liu Jiansheng, Li Zheng   

  1. Deportment of Electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100083
  • Received:1998-08-07 Revised:1998-09-21 Online:1998-11-25 Published:1998-11-25

Abstract: A proposal of simultaneous measurement of strain and temperature distributions in smart structures using fiber gratings and Raman scattering is presented. The temperature only dependent Raman scattering can uncouple the dual dependence of the reflection central wavelength shift of fiber Bragg gratings on strain and temperature. Spatial resolution matching between Raman scattering systems and fiber Bragg gratings is theoretically analyzed in detail.

Key words: fiber gr ating, Raman scatt ering, stra in sensing, temper ature measur ement, spat ialresolution, smar t str uctur e

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