Measurement and Discrimination of Asymmetric Non-uniform Strain Distribution Based on Spectrum Characterization of FBG Sensors
The asymmetric deformation of glass-to-metal seals is an important defect that would lead to the failure of the pressure boundary in nuclear reactors. In this research, an efficient approach to measure the asymmetric deformation and prevent the potential failure was proposed based on the spectrum ch...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-05-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2022.852325/full |
| _version_ | 1828283388678635520 |
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| author | Zhichun Fan Zhichun Fan He Yan Zhiyong Huang Jing Liu |
| author_facet | Zhichun Fan Zhichun Fan He Yan Zhiyong Huang Jing Liu |
| author_sort | Zhichun Fan |
| collection | DOAJ |
| description | The asymmetric deformation of glass-to-metal seals is an important defect that would lead to the failure of the pressure boundary in nuclear reactors. In this research, an efficient approach to measure the asymmetric deformation and prevent the potential failure was proposed based on the spectrum characterization of fiber Bragg grating (FBG) sensors. The asymmetric deformation was induced from small-size large-gradient nonuniform strain in sealing materials; as a result, it could be monitored through the spectra of embedded FBGs affected by strain variations. The theoretical analysis of the FBG spectrum was carried out using the transfer matrix model (TMM) to validate the measuring feasibility and reliability. Based on the theoretical results, the asymmetric deformation was measured by the distributed embedded FBG experimentally. By combining the reconstructed spectrum and the experimental results, the asymmetric deformation of glass-to-metal was proved to be monitored, and the defect was able to be prevented during the manufacturing process effectively via the proposed method. |
| first_indexed | 2024-04-13T08:44:27Z |
| format | Article |
| id | doaj.art-a3acf61b041e4c6ca3b0145331617702 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-13T08:44:27Z |
| publishDate | 2022-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-a3acf61b041e4c6ca3b01453316177022022-12-22T02:53:45ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2022-05-011010.3389/fenrg.2022.852325852325Measurement and Discrimination of Asymmetric Non-uniform Strain Distribution Based on Spectrum Characterization of FBG SensorsZhichun Fan0Zhichun Fan1He Yan2Zhiyong Huang3Jing Liu4School of Ocean Information Engineering, Jimei University, Xiamen, ChinaInstitute of Nuclear and New Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Center for Advanced Nuclear Energy Technology, Tsinghua University, Beijing, ChinaInstitute of Nuclear and New Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Center for Advanced Nuclear Energy Technology, Tsinghua University, Beijing, ChinaInstitute of Nuclear and New Energy Technology, Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Collaborative Innovation Center for Advanced Nuclear Energy Technology, Tsinghua University, Beijing, ChinaSchool of Ocean Information Engineering, Jimei University, Xiamen, ChinaThe asymmetric deformation of glass-to-metal seals is an important defect that would lead to the failure of the pressure boundary in nuclear reactors. In this research, an efficient approach to measure the asymmetric deformation and prevent the potential failure was proposed based on the spectrum characterization of fiber Bragg grating (FBG) sensors. The asymmetric deformation was induced from small-size large-gradient nonuniform strain in sealing materials; as a result, it could be monitored through the spectra of embedded FBGs affected by strain variations. The theoretical analysis of the FBG spectrum was carried out using the transfer matrix model (TMM) to validate the measuring feasibility and reliability. Based on the theoretical results, the asymmetric deformation was measured by the distributed embedded FBG experimentally. By combining the reconstructed spectrum and the experimental results, the asymmetric deformation of glass-to-metal was proved to be monitored, and the defect was able to be prevented during the manufacturing process effectively via the proposed method.https://www.frontiersin.org/articles/10.3389/fenrg.2022.852325/fullglass-to-metal sealfiber Bragg grating (FBG)transfer matrix method (TMM)non-uniform strain distributionnuclear power plant |
| spellingShingle | Zhichun Fan Zhichun Fan He Yan Zhiyong Huang Jing Liu Measurement and Discrimination of Asymmetric Non-uniform Strain Distribution Based on Spectrum Characterization of FBG Sensors Frontiers in Energy Research glass-to-metal seal fiber Bragg grating (FBG) transfer matrix method (TMM) non-uniform strain distribution nuclear power plant |
| title | Measurement and Discrimination of Asymmetric Non-uniform Strain Distribution Based on Spectrum Characterization of FBG Sensors |
| title_full | Measurement and Discrimination of Asymmetric Non-uniform Strain Distribution Based on Spectrum Characterization of FBG Sensors |
| title_fullStr | Measurement and Discrimination of Asymmetric Non-uniform Strain Distribution Based on Spectrum Characterization of FBG Sensors |
| title_full_unstemmed | Measurement and Discrimination of Asymmetric Non-uniform Strain Distribution Based on Spectrum Characterization of FBG Sensors |
| title_short | Measurement and Discrimination of Asymmetric Non-uniform Strain Distribution Based on Spectrum Characterization of FBG Sensors |
| title_sort | measurement and discrimination of asymmetric non uniform strain distribution based on spectrum characterization of fbg sensors |
| topic | glass-to-metal seal fiber Bragg grating (FBG) transfer matrix method (TMM) non-uniform strain distribution nuclear power plant |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2022.852325/full |
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