LPG Fiber Optic Sensor Applied to the Determination of the Flexural Elasticity Modulus of Woods

EasyChair Preprint no. 2632, version 2

Abstract

In this work, we show the feasibility of using CO2 laser induced long-period gratings (LPGs) for determining the flexural elasticity modules of woods. To do this, we characterized the dynamic response of bars made of different woods put in oscillation. By recovering the bars’ flexural oscillations from the LPG time response and by taking the fast Fourier transform (FFT) of it, the movement vibration frequencies could be obtained. Knowledge of these vibration frequencies for the oscillation lengths of different bars allowed us to calculate the materials’ the flexural elasticity modules.

Keyphrases: optical fiber sensing, vibration sensor, Wood flexural elasticity modulus

@Booklet{EasyChair:2632,
  author = {Luis Mosquera and L. Yana and Jesús Basurto},
  title = {LPG Fiber Optic Sensor Applied to the Determination of the Flexural Elasticity Modulus of Woods},
  howpublished = {EasyChair Preprint no. 2632},

  year = {EasyChair, 2020}}