An all-fiber Fabry-Perot interferometer for pressure sensing in different gaseous environments

Detalhes bibliográficos
Autor(a) principal: Susana Oliveira Silva
Data de Publicação: 2014
Outros Autores: Luís Carlos Coelho, Orlando Frazão
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://repositorio.inesctec.pt/handle/123456789/3500
http://dx.doi.org/10.1016/j.measurement.2013.09.028
Resumo: A gas pressure sensor based on an all-fiber Fabry-Perot interferometer (FFPI) is reported. The sensing head consists of a small section of silica rod spliced with a large offset between two single-mode fibers. The silica rod is used only as mechanical support so that an air cavity can be formed between both SMF. It is shown that the FFPI sensor is sensitive to gas pressure variation and when submitted to different gaseous environments, namely carbon dioxide, nitrogen and oxygen - sensitivities of 6.2, 4.1 and 3.6 nm/MPa, respectively, were attained. The refractive index change on nitrogen environment by means of gas pressure variation was also determined and a sensitivity of 1526 nm/RIU was obtained. The response of the sensing device to temperature variations in air was also studied and a sensitivity of -14 pm/degrees C was attained.
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spelling An all-fiber Fabry-Perot interferometer for pressure sensing in different gaseous environmentsA gas pressure sensor based on an all-fiber Fabry-Perot interferometer (FFPI) is reported. The sensing head consists of a small section of silica rod spliced with a large offset between two single-mode fibers. The silica rod is used only as mechanical support so that an air cavity can be formed between both SMF. It is shown that the FFPI sensor is sensitive to gas pressure variation and when submitted to different gaseous environments, namely carbon dioxide, nitrogen and oxygen - sensitivities of 6.2, 4.1 and 3.6 nm/MPa, respectively, were attained. The refractive index change on nitrogen environment by means of gas pressure variation was also determined and a sensitivity of 1526 nm/RIU was obtained. The response of the sensing device to temperature variations in air was also studied and a sensitivity of -14 pm/degrees C was attained.2017-11-20T10:33:09Z2014-01-01T00:00:00Z2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://repositorio.inesctec.pt/handle/123456789/3500http://dx.doi.org/10.1016/j.measurement.2013.09.028engSusana Oliveira SilvaLuís Carlos CoelhoOrlando Frazãoinfo:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-05-15T10:20:28Zoai:repositorio.inesctec.pt:123456789/3500Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:53:08.726481Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv An all-fiber Fabry-Perot interferometer for pressure sensing in different gaseous environments
title An all-fiber Fabry-Perot interferometer for pressure sensing in different gaseous environments
spellingShingle An all-fiber Fabry-Perot interferometer for pressure sensing in different gaseous environments
Susana Oliveira Silva
title_short An all-fiber Fabry-Perot interferometer for pressure sensing in different gaseous environments
title_full An all-fiber Fabry-Perot interferometer for pressure sensing in different gaseous environments
title_fullStr An all-fiber Fabry-Perot interferometer for pressure sensing in different gaseous environments
title_full_unstemmed An all-fiber Fabry-Perot interferometer for pressure sensing in different gaseous environments
title_sort An all-fiber Fabry-Perot interferometer for pressure sensing in different gaseous environments
author Susana Oliveira Silva
author_facet Susana Oliveira Silva
Luís Carlos Coelho
Orlando Frazão
author_role author
author2 Luís Carlos Coelho
Orlando Frazão
author2_role author
author
dc.contributor.author.fl_str_mv Susana Oliveira Silva
Luís Carlos Coelho
Orlando Frazão
description A gas pressure sensor based on an all-fiber Fabry-Perot interferometer (FFPI) is reported. The sensing head consists of a small section of silica rod spliced with a large offset between two single-mode fibers. The silica rod is used only as mechanical support so that an air cavity can be formed between both SMF. It is shown that the FFPI sensor is sensitive to gas pressure variation and when submitted to different gaseous environments, namely carbon dioxide, nitrogen and oxygen - sensitivities of 6.2, 4.1 and 3.6 nm/MPa, respectively, were attained. The refractive index change on nitrogen environment by means of gas pressure variation was also determined and a sensitivity of 1526 nm/RIU was obtained. The response of the sensing device to temperature variations in air was also studied and a sensitivity of -14 pm/degrees C was attained.
publishDate 2014
dc.date.none.fl_str_mv 2014-01-01T00:00:00Z
2014
2017-11-20T10:33:09Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.inesctec.pt/handle/123456789/3500
http://dx.doi.org/10.1016/j.measurement.2013.09.028
url http://repositorio.inesctec.pt/handle/123456789/3500
http://dx.doi.org/10.1016/j.measurement.2013.09.028
dc.language.iso.fl_str_mv eng
language eng
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instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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