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http://dx.doi.org/10.5139/JKSAS.2003.31.6.030

Measurement of Transverse Strain Using Polarization Maintaining Fiber Bragg Grating Sensor  

Yoon, Hyuk-Jin (한국과학기술원 항공우주공학전공 대학원)
Kim, Dae-Hyun (한국과학기술원 항공우주공학전공 대학원)
Hong, Chang-Sun (한국과학기술원 항공우주공학전공)
Kim, Chun-Gon (한국과학기술원 항공우주공학전공)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.31, no.6, 2003 , pp. 30-35 More about this Journal
Abstract
In this paper, the transverse strain was measured using polarization maintaining fiber Bragg grating(PMFBG) sensor. PMFBG sensor was fabricated using phase mask and Excidmer laser. The reflected wavelength of PMFBG sensor had dual peaks due to intrinsic birefringence. To find the polarization axes, peak sensitivity was measured under compression test. The signal characteristics of PMFBG sensor were also examined in embedding condition. The embedded PMFBG sensor in epoxy block was loaded for the transverse strain measurement, The wavelength-swept fiber laser(WSFL) was used to construct the PMFBG sensor system. Experiments showed that the PMFBG sensor could successfully measure the transverse strain.
Keywords
PMFBG; Transverse Strain Measurement;
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