Acoustic Emission Measurement by Fiber Bragg Grating Glued to Cylindrical Sensor Holder

<table>Measurement equipment for FBG. The central Bragg wavelength shifts right or left when the FBG is oscillated by the emitted elastic wave from the AE source. Then the energy in the region that overlaps with the central wavelength is converted into the electric signal. As a result, the elastic wave is detected.</table>

Advances in Materials Science and Engineering

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Figure 2

Figure 2: Acoustic Emission Measurement by Fiber Bragg Grating Glued to Cylindrical Sensor Holder 