期刊
IEEE SENSORS JOURNAL
卷 20, 期 9, 页码 4719-4725出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSEN.2019.2944998
关键词
Displacement measurement; optical fiber sensors; polymers
资金
- CONACYT [CB-2016-01-286916, CB A1-S-33363]
This manuscript experimentally validates a thin-film polymer and multimode fiber optic interaction-based low-cost optical fiber displacement sensor. The sensing setup is operated by deflecting a commercially Mylar (R) polymer film using multimode optical fiber. The sensor exhibits a higher sensitivity of 24 nm/mu m and resolution of 41.6nm. The sensor's analyses also demonstrate good polynomial approximation, with a maximal adjusted square of R = 0.9801, and high stability, in which minimal power (0.4dB-Hour) and wavelength (<2nm-Hour) variations are observed. Moreover, thermal experiments prove that the sensor has lower temperature traits (0.05 mu m/degrees C), and this parameter can be distinguished considering the wavelength shifting direction. The simplicity of the scheme, as well as the cost of the elements involved, make this technique a reliable alternative to detect microdisplacements.
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