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Non-Invasive Acoustic Monitoring of Gas Turbine Units by Fiber Optic Sensors
In this article, we study the possibility of gas turbine unit (GTU) monitoring using interferometric fiber optic sensors. We used the Mach–Zehnder interferometer (MZI) scheme, which can be easily implemented and simply installed on the turbine, and also allows us to solve the problem of phase unwrap...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9269423/ https://www.ncbi.nlm.nih.gov/pubmed/35808278 http://dx.doi.org/10.3390/s22134781 |
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author | Stepanov, Konstantin V. Zhirnov, Andrey A. Sazonkin, Stanislav G. Pnev, Alexey B. Bobrov, Alexander N. Yagodnikov, Dmitriy A. |
author_facet | Stepanov, Konstantin V. Zhirnov, Andrey A. Sazonkin, Stanislav G. Pnev, Alexey B. Bobrov, Alexander N. Yagodnikov, Dmitriy A. |
author_sort | Stepanov, Konstantin V. |
collection | PubMed |
description | In this article, we study the possibility of gas turbine unit (GTU) monitoring using interferometric fiber optic sensors. We used the Mach–Zehnder interferometer (MZI) scheme, which can be easily implemented and simply installed on the turbine, and also allows us to solve the problem of phase unwrapping conveniently. In this research, the following main steps were carried out: an experimental scheme based on the MZI was assembled, and its sensitive arm was fixed on the GTU under study; data on various operation modes of the GTU was collected; the data were subjected to frequency FFT analysis, based on which the main rotational speeds of the turbine were identified. With FFT analysis, we also demonstrated multiples harmonics, which appear in the case of GTU after operating time, caused by the number of blades. The possibility of GTU monitoring and analysis using a non-invasive compact fiber-optic sensor is demonstrated: spectral analysis is used to detect the rotor speed, as well as the presence or absence of high-order multiple frequencies indicating blade and bearing defects, which are determined by the number of GTU’s blades and rolling bearing used as turbines rotor supports. |
format | Online Article Text |
id | pubmed-9269423 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-92694232022-07-09 Non-Invasive Acoustic Monitoring of Gas Turbine Units by Fiber Optic Sensors Stepanov, Konstantin V. Zhirnov, Andrey A. Sazonkin, Stanislav G. Pnev, Alexey B. Bobrov, Alexander N. Yagodnikov, Dmitriy A. Sensors (Basel) Article In this article, we study the possibility of gas turbine unit (GTU) monitoring using interferometric fiber optic sensors. We used the Mach–Zehnder interferometer (MZI) scheme, which can be easily implemented and simply installed on the turbine, and also allows us to solve the problem of phase unwrapping conveniently. In this research, the following main steps were carried out: an experimental scheme based on the MZI was assembled, and its sensitive arm was fixed on the GTU under study; data on various operation modes of the GTU was collected; the data were subjected to frequency FFT analysis, based on which the main rotational speeds of the turbine were identified. With FFT analysis, we also demonstrated multiples harmonics, which appear in the case of GTU after operating time, caused by the number of blades. The possibility of GTU monitoring and analysis using a non-invasive compact fiber-optic sensor is demonstrated: spectral analysis is used to detect the rotor speed, as well as the presence or absence of high-order multiple frequencies indicating blade and bearing defects, which are determined by the number of GTU’s blades and rolling bearing used as turbines rotor supports. MDPI 2022-06-24 /pmc/articles/PMC9269423/ /pubmed/35808278 http://dx.doi.org/10.3390/s22134781 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Stepanov, Konstantin V. Zhirnov, Andrey A. Sazonkin, Stanislav G. Pnev, Alexey B. Bobrov, Alexander N. Yagodnikov, Dmitriy A. Non-Invasive Acoustic Monitoring of Gas Turbine Units by Fiber Optic Sensors |
title | Non-Invasive Acoustic Monitoring of Gas Turbine Units by Fiber Optic Sensors |
title_full | Non-Invasive Acoustic Monitoring of Gas Turbine Units by Fiber Optic Sensors |
title_fullStr | Non-Invasive Acoustic Monitoring of Gas Turbine Units by Fiber Optic Sensors |
title_full_unstemmed | Non-Invasive Acoustic Monitoring of Gas Turbine Units by Fiber Optic Sensors |
title_short | Non-Invasive Acoustic Monitoring of Gas Turbine Units by Fiber Optic Sensors |
title_sort | non-invasive acoustic monitoring of gas turbine units by fiber optic sensors |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9269423/ https://www.ncbi.nlm.nih.gov/pubmed/35808278 http://dx.doi.org/10.3390/s22134781 |
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