Development and analysis of a model based on chirped fiber Bragg gratings employed for cracks characterization in materials
In this work a model was developed that allows to understand the behavior of a chirped fiber Bragg grating for the detection and characterization of cracks in materials. In addition to the amplitude response, we show that the group delay of the grating provides useful information for the characteriz...
| Autores principales: | , , , , |
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| Formato: | Articulo Preprint |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/128364 |
| Aporte de: |
| id |
I19-R120-10915-128364 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Física Optical fibre sensors Modelling of sensors Chirped fibre Bragg gratings Fabry-Perot cavity Identification of material cracks |
| spellingShingle |
Física Optical fibre sensors Modelling of sensors Chirped fibre Bragg gratings Fabry-Perot cavity Identification of material cracks Mesa Yandy, Angélica María Duchowicz, Ricardo Russo, Nélida Araceli Cruz, Jose L. Andrés, Miguel V. Development and analysis of a model based on chirped fiber Bragg gratings employed for cracks characterization in materials |
| topic_facet |
Física Optical fibre sensors Modelling of sensors Chirped fibre Bragg gratings Fabry-Perot cavity Identification of material cracks |
| description |
In this work a model was developed that allows to understand the behavior of a chirped fiber Bragg grating for the detection and characterization of cracks in materials. In addition to the amplitude response, we show that the group delay of the grating provides useful information for the characterization of the crack. The position of the crack can be determined thanks to the linear chirp of the grating that fixes a correlation between the spatial position and both, the wavelength and the group delay. However, our analysis shows that this simple approach has a source of error, which can be overcome if a controllable external strain can be applied to the embedded grating, additional to the strain generated by the embedding process. Thus, the width of the crack can be also estimated. The effect of the appearance of a crack on the grating generates simple o multiple transmission peaks that are analyzed considering the behavior of a Fabry–Perot fiber cavity. This simple model was experimentally tested and preliminary results were in good agreement with the simulations. |
| format |
Articulo Preprint |
| author |
Mesa Yandy, Angélica María Duchowicz, Ricardo Russo, Nélida Araceli Cruz, Jose L. Andrés, Miguel V. |
| author_facet |
Mesa Yandy, Angélica María Duchowicz, Ricardo Russo, Nélida Araceli Cruz, Jose L. Andrés, Miguel V. |
| author_sort |
Mesa Yandy, Angélica María |
| title |
Development and analysis of a model based on chirped fiber Bragg gratings employed for cracks characterization in materials |
| title_short |
Development and analysis of a model based on chirped fiber Bragg gratings employed for cracks characterization in materials |
| title_full |
Development and analysis of a model based on chirped fiber Bragg gratings employed for cracks characterization in materials |
| title_fullStr |
Development and analysis of a model based on chirped fiber Bragg gratings employed for cracks characterization in materials |
| title_full_unstemmed |
Development and analysis of a model based on chirped fiber Bragg gratings employed for cracks characterization in materials |
| title_sort |
development and analysis of a model based on chirped fiber bragg gratings employed for cracks characterization in materials |
| publishDate |
2018 |
| url |
http://sedici.unlp.edu.ar/handle/10915/128364 |
| work_keys_str_mv |
AT mesayandyangelicamaria developmentandanalysisofamodelbasedonchirpedfiberbragggratingsemployedforcrackscharacterizationinmaterials AT duchowiczricardo developmentandanalysisofamodelbasedonchirpedfiberbragggratingsemployedforcrackscharacterizationinmaterials AT russonelidaaraceli developmentandanalysisofamodelbasedonchirpedfiberbragggratingsemployedforcrackscharacterizationinmaterials AT cruzjosel developmentandanalysisofamodelbasedonchirpedfiberbragggratingsemployedforcrackscharacterizationinmaterials AT andresmiguelv developmentandanalysisofamodelbasedonchirpedfiberbragggratingsemployedforcrackscharacterizationinmaterials |
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Repositorios |
| _version_ |
1764820452325195776 |