Proceedings of the Korean Society For Composite Materials Conference (한국복합재료학회:학술대회논문집)

The Korean Society for Composite Materials (한국복합재료학회)
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Measurement of Transverse Strain Using PMBG Sensor

PMFBG 센서를 이용한 횡방향 변형률 측정

  • 윤혁진 (KAIST 기계공학과 항공우주공학전공) ;
  • 김대현 (KAIST 기계공학과 항공우주공학전) ;
  • 홍창선 (KAIST 기계공학과 항공우주공학전) ;
  • 김천곤 (KAIST 기계공학과 항공우주공학전공)
  • Published : 2002.05.01
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Abstract

PMFBG sensor was fabricated using phase mask and Excimer laser. The reflected wavelength of PMFBG sensor had dual peaks due to intrinsic birefringence. To discover 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 measurements. Experiments showed that the PMFBG sensor could successfully measure the transverse strain. This PMFBG sensor is useful for the structures that require measuring transverse stram.

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