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Proceedings Paper

Design of a sensor for asphalt pavement pressure field measurements
Author(s): Hongyue Liu; Dakai Liang; Xiaolin Han; Xiaogang Wang
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Paper Abstract

From the sensitivity of the FBG center wavelength changing with strain changes on the surface, the design of a FBG strain-based asphalt pavement pressure sensor is described by designing a special FBG asphalt box-film packaging structure. The compactness and simplicity of the device are achieved by using the corresponding package obtained from common available asphalt. Numerical analysis and experimental results show that the response of the sensor has good regularity for a wide range of travel (0MPa to 5.3312MPa). In the load range, the FBG center wavelength increases from 1548.264nm to 1548.346nm which shows a good correspondence with loads. Linearity, travel and sensitivity are experimentally determined by different packaging parameters. A design chart that includes the travel (0MPa to 5.3312MPa) and the sensitivity (15.3812pm/MPa) is finally proposed.

Paper Details

Date Published: 22 June 2013
PDF: 9 pages
Proc. SPIE 8769, International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013), 876925 (22 June 2013); doi: 10.1117/12.2016901
Show Author Affiliations
Hongyue Liu, Southeast Univ. (China)
Dakai Liang, Nanjing Univ. of Aeronautics and Astronautics (China)
Xiaolin Han, Southeast Univ. (China)
Xiaogang Wang, Naval Aeronautical Engineering Institute (China)

Published in SPIE Proceedings Vol. 8769:
International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN2013)
Chenggen Quan; Kemao Qian; Anand Asundi, Editor(s)

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