Simulation and Measurement of Strain Waveform under Vibration Using Fiber Bragg Gratings

Autor: Nurzhigit Smailov, Sauletbek Koshkinbayev, Bazarbay Aidana, Ainur Kuttybayeva, Yerlan Tashtay, Amir Aziskhan, Dmitry Arseniev, Dmitry Kiesewetter, Sergey Krivosheev, Sergey Magazinov, Victor Malyugin, Changsen Sun
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Sensors, Vol 24, Iss 19, p 6194 (2024)
Druh dokumentu: article
ISSN: 1424-8220
29987156
DOI: 10.3390/s24196194
Popis: The work is devoted to the consideration of methods for determining the strain of objects using fiber Bragg gratings under a high-frequency vibration or pulsed mechanical action, which is difficult to perform using widespread methods and devices. The methods are based on numerical processing of the time dependence of the radiation power reflected from the fiber Bragg grating at various wavelengths, which makes it possible to measure strain parameters in a wide range of magnitude and frequencies. The efficiency of the proposed methods is demonstrated by numerical simulation. It is shown that it is possible to restore the strain dependence on time in the range ±1000 μϵ or more from simultaneously measured power dependencies reflected by the fiber Bragg grating using common fiber-optic components. The case of sequential registration of reflected radiation power at different wavelengths to determine the probability density of the distribution of the strain values is also considered. The results of signal processing obtained both by numerical simulation and experimentally for the case of a linear vibration are presented. The technical problems of using the proposed methods are discussed.
Databáze: Directory of Open Access Journals
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