Low-Frequency Vibration Sensor with Dual-Fiber Fabry–Perot Interferometer Using a Low-Coherence LED

In this paper, we propose a dual-fiberoptic Fabry–Perot interferometer (FFPI) sensing system integrated with a low-cost and low-coherence light-emitting diode (LED) as a light source to detect dynamic vibration caused by acoustic waves with a cut-off frequency of 200 Hz. When the acoustic signals ar...

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Bibliographic Details
Main Authors: Mu-Chun Wang, Shou-Yen Chao, Chun-Yeon Lin, Cheng-Hsun-Tony Chang, Wen-How Lan
Format: Article
Language:English
Published: MDPI AG 2022-08-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/12/8/1079