An All-Fiber Optical Sensor Combined with FBG and CFBG-FP for Attitude Estimation

In order to meet the needs of attitude correction of the optical fiber sensor array, an all-fiber optical sensor combined with FBG and CFBG-FP is proposed to monitor its attitude angle. The FBG sensor for pitch and roll angles detection employs a geometric model solution to shift the center waveleng...

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Main Authors: Yifan Li, Shuidong Xiong, Ji Xia
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/15/5562
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author Yifan Li
Shuidong Xiong
Ji Xia
author_facet Yifan Li
Shuidong Xiong
Ji Xia
author_sort Yifan Li
collection DOAJ
description In order to meet the needs of attitude correction of the optical fiber sensor array, an all-fiber optical sensor combined with FBG and CFBG-FP is proposed to monitor its attitude angle. The FBG sensor for pitch and roll angles detection employs a geometric model solution to shift the center wavelength of the three fiber Bragg gratings connected to it through the mass sphere, allowing for pitch and roll angle detection. Based on the magnetostrictive effect, the CFBG-FP sensor for heading angle detection employs changes of the cavity length of the chirped grating Fabry-Pérot cavity connected to its surface. The method of interpolation data processing and derivation of the attitude angle matrix is used to realize heading angle detection. The experimental results indicate that the FBG sensor for the pitch and roll angles detection has an effective detection range of 180 degrees and an angle measurement error of less than 1.5 degrees. Meanwhile, in the region beyond 10 degrees in the geomagnetic north-south direction, the angle measurement error of the CFBG-FP sensor for the heading angle detection is less than 1.3 degrees. Moreover, the impact of temperature in the system is minimized, demonstrating the validity of this combined fiber optical approach in the attitude angle measurements.
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spelling doaj.art-9ccc15bae4b44ba1be22cab232e3c9e62023-11-30T22:50:35ZengMDPI AGSensors1424-82202022-07-012215556210.3390/s22155562An All-Fiber Optical Sensor Combined with FBG and CFBG-FP for Attitude EstimationYifan Li0Shuidong Xiong1Ji Xia2College of Meteorology and Oceanography, National University of Defense Technology, Changsha 410073, ChinaCollege of Meteorology and Oceanography, National University of Defense Technology, Changsha 410073, ChinaCollege of Meteorology and Oceanography, National University of Defense Technology, Changsha 410073, ChinaIn order to meet the needs of attitude correction of the optical fiber sensor array, an all-fiber optical sensor combined with FBG and CFBG-FP is proposed to monitor its attitude angle. The FBG sensor for pitch and roll angles detection employs a geometric model solution to shift the center wavelength of the three fiber Bragg gratings connected to it through the mass sphere, allowing for pitch and roll angle detection. Based on the magnetostrictive effect, the CFBG-FP sensor for heading angle detection employs changes of the cavity length of the chirped grating Fabry-Pérot cavity connected to its surface. The method of interpolation data processing and derivation of the attitude angle matrix is used to realize heading angle detection. The experimental results indicate that the FBG sensor for the pitch and roll angles detection has an effective detection range of 180 degrees and an angle measurement error of less than 1.5 degrees. Meanwhile, in the region beyond 10 degrees in the geomagnetic north-south direction, the angle measurement error of the CFBG-FP sensor for the heading angle detection is less than 1.3 degrees. Moreover, the impact of temperature in the system is minimized, demonstrating the validity of this combined fiber optical approach in the attitude angle measurements.https://www.mdpi.com/1424-8220/22/15/5562sensorfiber Bragg gratingchirped gratingFabry-pérot cavitymagnetostrictionattitude angle
spellingShingle Yifan Li
Shuidong Xiong
Ji Xia
An All-Fiber Optical Sensor Combined with FBG and CFBG-FP for Attitude Estimation
Sensors
sensor
fiber Bragg grating
chirped grating
Fabry-pérot cavity
magnetostriction
attitude angle
title An All-Fiber Optical Sensor Combined with FBG and CFBG-FP for Attitude Estimation
title_full An All-Fiber Optical Sensor Combined with FBG and CFBG-FP for Attitude Estimation
title_fullStr An All-Fiber Optical Sensor Combined with FBG and CFBG-FP for Attitude Estimation
title_full_unstemmed An All-Fiber Optical Sensor Combined with FBG and CFBG-FP for Attitude Estimation
title_short An All-Fiber Optical Sensor Combined with FBG and CFBG-FP for Attitude Estimation
title_sort all fiber optical sensor combined with fbg and cfbg fp for attitude estimation
topic sensor
fiber Bragg grating
chirped grating
Fabry-pérot cavity
magnetostriction
attitude angle
url https://www.mdpi.com/1424-8220/22/15/5562
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