Fiber-optic simultaneous distributed monitoring of strain and temperature for an aircraft wing during flight

Daichi Wada; Hirotaka Igawa; Masato Tamayama; Tokio Kasai; Hitoshi Arizono; Hideaki Murayama; Natsumi Isoda; Masafumi Katsuta

doi:10.1364/AO.57.010458

Fiber-optic simultaneous distributed monitoring of strain and temperature for an aircraft wing during flight

Daichi Wada^*, Hirotaka Igawa, Masato Tamayama, Tokio Kasai, Hitoshi Arizono, Hideaki Murayama, Natsumi Isoda, Masafumi Katsuta

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

We applied a fiber optic distributed simultaneous strain and temperature measurement technique to the structural monitoring of the main wing of a middle-sized passenger jet aircraft during flight. We used 40 10 cm long fiber Bragg gratings (FBGs), inscribed in a highly birefringent polarization-maintaining fiber. The FBGs were interrogated by optical frequency domain reflectometry, which could measure Bragg wavelength distributions at a sampling rate of 151 Hz. The simultaneous measurement technique could detect structural behaviors of the wing during flight under temperature-changing conditions. In addition, we discuss the effect of the polarization mode-coupling and the apparent position shift of the FBGs over time, which occurred during flight.

Original language	English
Pages (from-to)	10458-10465
Number of pages	8
Journal	Applied Optics
Volume	57
Issue number	36
DOIs	https://doi.org/10.1364/AO.57.010458
Publication status	Published - 2018 Dec 20

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1364/AO.57.010458

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abstract = "We applied a fiber optic distributed simultaneous strain and temperature measurement technique to the structural monitoring of the main wing of a middle-sized passenger jet aircraft during flight. We used 40 10 cm long fiber Bragg gratings (FBGs), inscribed in a highly birefringent polarization-maintaining fiber. The FBGs were interrogated by optical frequency domain reflectometry, which could measure Bragg wavelength distributions at a sampling rate of 151 Hz. The simultaneous measurement technique could detect structural behaviors of the wing during flight under temperature-changing conditions. In addition, we discuss the effect of the polarization mode-coupling and the apparent position shift of the FBGs over time, which occurred during flight.",

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T1 - Fiber-optic simultaneous distributed monitoring of strain and temperature for an aircraft wing during flight

AU - Wada, Daichi

AU - Igawa, Hirotaka

AU - Tamayama, Masato

AU - Kasai, Tokio

AU - Arizono, Hitoshi

AU - Murayama, Hideaki

AU - Isoda, Natsumi

AU - Katsuta, Masafumi

PY - 2018/12/20

Y1 - 2018/12/20

N2 - We applied a fiber optic distributed simultaneous strain and temperature measurement technique to the structural monitoring of the main wing of a middle-sized passenger jet aircraft during flight. We used 40 10 cm long fiber Bragg gratings (FBGs), inscribed in a highly birefringent polarization-maintaining fiber. The FBGs were interrogated by optical frequency domain reflectometry, which could measure Bragg wavelength distributions at a sampling rate of 151 Hz. The simultaneous measurement technique could detect structural behaviors of the wing during flight under temperature-changing conditions. In addition, we discuss the effect of the polarization mode-coupling and the apparent position shift of the FBGs over time, which occurred during flight.

AB - We applied a fiber optic distributed simultaneous strain and temperature measurement technique to the structural monitoring of the main wing of a middle-sized passenger jet aircraft during flight. We used 40 10 cm long fiber Bragg gratings (FBGs), inscribed in a highly birefringent polarization-maintaining fiber. The FBGs were interrogated by optical frequency domain reflectometry, which could measure Bragg wavelength distributions at a sampling rate of 151 Hz. The simultaneous measurement technique could detect structural behaviors of the wing during flight under temperature-changing conditions. In addition, we discuss the effect of the polarization mode-coupling and the apparent position shift of the FBGs over time, which occurred during flight.

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Fiber-optic simultaneous distributed monitoring of strain and temperature for an aircraft wing during flight

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