A Zero-Cross Detection Algorithm for Cavity-Length Interrogation of Fiber-Optic Fabry–Perot Sensors

A zero-cross detection algorithm was proposed for the cavity-length interrogation of fiber-optic Fabry–Perot (FP) sensors. The method can avoid the inaccuracy of peak determination in the conventional peak-to-peak method for the cavity-length interrogation of fiber-optic FP sensors caused by the slo...

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Detalles Bibliográficos
Autores principales: Ma, Zhibo, Song, Zechen, Huang, Xirui, Guo, Tongxin, Yuan, Weizheng, Chen, Haibin, Zhang, Tianyang, Wang, Wei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6767213/
https://www.ncbi.nlm.nih.gov/pubmed/31500318
http://dx.doi.org/10.3390/s19183868
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author Ma, Zhibo
Song, Zechen
Huang, Xirui
Guo, Tongxin
Yuan, Weizheng
Chen, Haibin
Zhang, Tianyang
Wang, Wei
author_facet Ma, Zhibo
Song, Zechen
Huang, Xirui
Guo, Tongxin
Yuan, Weizheng
Chen, Haibin
Zhang, Tianyang
Wang, Wei
author_sort Ma, Zhibo
collection PubMed
description A zero-cross detection algorithm was proposed for the cavity-length interrogation of fiber-optic Fabry–Perot (FP) sensors. The method can avoid the inaccuracy of peak determination in the conventional peak-to-peak method for the cavity-length interrogation of fiber-optic FP sensors caused by the slow variation of the spectral power density in peak neighboring regions. Both simulations and experiments were carried out to investigate the feasibility and performance of the zero-cross detection algorithm. Fiber-optic FP sensors with cavity lengths in the range of 150–1000 μm were successfully interrogated with a maximum error of 0.083 μm.
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spelling pubmed-67672132019-10-02 A Zero-Cross Detection Algorithm for Cavity-Length Interrogation of Fiber-Optic Fabry–Perot Sensors Ma, Zhibo Song, Zechen Huang, Xirui Guo, Tongxin Yuan, Weizheng Chen, Haibin Zhang, Tianyang Wang, Wei Sensors (Basel) Article A zero-cross detection algorithm was proposed for the cavity-length interrogation of fiber-optic Fabry–Perot (FP) sensors. The method can avoid the inaccuracy of peak determination in the conventional peak-to-peak method for the cavity-length interrogation of fiber-optic FP sensors caused by the slow variation of the spectral power density in peak neighboring regions. Both simulations and experiments were carried out to investigate the feasibility and performance of the zero-cross detection algorithm. Fiber-optic FP sensors with cavity lengths in the range of 150–1000 μm were successfully interrogated with a maximum error of 0.083 μm. MDPI 2019-09-07 /pmc/articles/PMC6767213/ /pubmed/31500318 http://dx.doi.org/10.3390/s19183868 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ma, Zhibo
Song, Zechen
Huang, Xirui
Guo, Tongxin
Yuan, Weizheng
Chen, Haibin
Zhang, Tianyang
Wang, Wei
A Zero-Cross Detection Algorithm for Cavity-Length Interrogation of Fiber-Optic Fabry–Perot Sensors
title A Zero-Cross Detection Algorithm for Cavity-Length Interrogation of Fiber-Optic Fabry–Perot Sensors
title_full A Zero-Cross Detection Algorithm for Cavity-Length Interrogation of Fiber-Optic Fabry–Perot Sensors
title_fullStr A Zero-Cross Detection Algorithm for Cavity-Length Interrogation of Fiber-Optic Fabry–Perot Sensors
title_full_unstemmed A Zero-Cross Detection Algorithm for Cavity-Length Interrogation of Fiber-Optic Fabry–Perot Sensors
title_short A Zero-Cross Detection Algorithm for Cavity-Length Interrogation of Fiber-Optic Fabry–Perot Sensors
title_sort zero-cross detection algorithm for cavity-length interrogation of fiber-optic fabry–perot sensors
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6767213/
https://www.ncbi.nlm.nih.gov/pubmed/31500318
http://dx.doi.org/10.3390/s19183868
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