Frequency Demodulation of Dynamic Stress Based on Distributed Polarization Coupling System

Zhang, Hongxia; Wang, Yuyao; Wen, Guoqiang; Jia, Dagong; Liu, Tiegen

doi:10.1109/jlt.2018.2804479

Cited by 12 publications

(1 citation statement)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where ∆𝜀 is the longitudinal strain variation (J. , ∆𝑇 is the temperature increment, 𝑝𝑒 is the elastooptical coefficient of the fiber (Dong et al, 2023), 𝑎𝑓 is the the coefficient of thermos-optic (H. Zhang et al, 2018), dan 𝜉𝑓 is the coefficient of thermal expansion of the fiber (Pan et al, 2019). When the FBG experiences vibration, a change in strain occurs within the FBG.…”

Section: Methodsmentioning

confidence: 99%

Characterization of Fiber Bragg Grating Accelerometer for Underwater Vibration Detection

Gani,

Purnamaningsih,

Rahardjo

2024

jppipa, pendidikan ipa, fisika, biologi, kimia

View full text Add to dashboard Cite

In this paper, the results of the characterization of a Fiber Bragg Grating (FBG) Accelerometer for detecting vibrations underwater are reported. The FBG Accelerometer, consisting of three FBGs, is utilized to detect underwater vibrations in three-dimensional directions. A water pump, with positions varied from 0 to 10 cm, is employed as the vibration source. Furthermore, the experimental results are presented in the form of the peak wavelength shift reflected by the FBG (ΔλB) and frequency. From the experiment results, it is shown that with increasing distance, ΔλB decreases linearly with successive gradients of 0.0058 nm/cm; 0.0059 nm/cm; and 0.0045 nm/cm. for FBG X, Y, and Z. It is also shown that with increasing distance, there is a decrease in frequency from 50 Hz for FBGs X, Y, and Z to 39 Hz; 38 Hz; and 40 Hz for FBGs X, Y, and Z respectively.

show abstract

Section: Methodsmentioning

confidence: 99%