Electronic system to speckle phenomenon characterization for random movement on fiber optics

Orlando Adrian Ortega Galicio, Jinmi Lezama Calvo, Teodoro Neri Diaz Leyva, Melina Machaca Saavedra, Simon Alejandro Sanchez Lopez, Alexandra Chávez Baldárrago, Omar Chamorro Atalaya

Abstract


Peru is a country located in a telluric area. The early detection of earthquakes will alert the population and avoid human losses. There are different methods to detect it, mainly on mechanical movements and electronic sensors, which are currently used. This article presents the analysis and implementation of a repetitive motion generation and detection system based on the study of the speckle phenomenon through an optical fiber. The analysis is calculated by the technique of averaged difference that allows obtaining the intensity variation of two consecutive frames, as the speckle pattern changes and occupies different positions. Several tests are carried out that show the relationship of the controlled random movement and speckle characteristics obtained, the test system that can be used for the detection of random movements similar to P and S earthquakes waves.

Keywords


Camera; Detection; Optical fiber; Seismic movements; Speckle

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DOI: http://doi.org/10.11591/ijeecs.v36.i3.pp1409-1420

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Indonesian Journal of Electrical Engineering and Computer Science (IJEECS)
p-ISSN: 2502-4752, e-ISSN: 2502-4760
This journal is published by the Institute of Advanced Engineering and Science (IAES) in collaboration with Intelektual Pustaka Media Utama (IPMU).

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