Optical fiber bending sensor based on speckle pattern imaging

Yıl 2024, Cilt: 66 Sayı: 2, 201 - 213

İsa Navruz , Ceren Dilsiz , Eylül Sevim Ortak , Sevde Nur Boyraz

https://doi.org/10.33769/aupse.1461078

Öz

In this paper, we propose a new fiber bending sensor based on speckle
pattern imaging. The design and implementation of the sensor are demonstrated by
simulated studies. The speckle pattern imaging technique by using a multimode
fiber can offer high spatial resolution. In this study, we showed that the bending
sensor responds very sensitively by using the correlation of the images. The fiber
sensing part consists of a curve in a form similar to the S structure. We reached a
sensitivity of 0.0295 μm-1 by bending the fiber only 60°. Sensitivity can be further
increased by reducing the bending diameter or creating a full loop.

Anahtar Kelimeler

Speckle pattern, fiber sensor, bending sensor, multimode fiber, image correlation

Destekleyen Kurum

TUBITAK

Proje Numarası

1919B012219546

Teşekkür

This research was supported by the Scientific and Technological Research Council of Turkey (TUBITAK 2209-A Program in 2023).

Kaynakça

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