Please use this identifier to cite or link to this item:
https://doi.org/10.3390/s18051607
DC Field | Value | |
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dc.title | Sensitivity enhancement of FBG-based strain sensor | |
dc.contributor.author | Li, R | |
dc.contributor.author | Chen, Y | |
dc.contributor.author | Tan, Y | |
dc.contributor.author | Zhou, Z | |
dc.contributor.author | Li, T | |
dc.contributor.author | Mao, J | |
dc.date.accessioned | 2020-10-22T07:25:08Z | |
dc.date.available | 2020-10-22T07:25:08Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Li, R, Chen, Y, Tan, Y, Zhou, Z, Li, T, Mao, J (2018). Sensitivity enhancement of FBG-based strain sensor. Sensors (Switzerland) 18 (5) : 1607. ScholarBank@NUS Repository. https://doi.org/10.3390/s18051607 | |
dc.identifier.issn | 14248220 | |
dc.identifier.uri | https://scholarbank.nus.edu.sg/handle/10635/179038 | |
dc.description.abstract | A novel fiber Bragg grating (FBG)-based strain sensor with a high-sensitivity is presented in this paper. The proposed FBG-based strain sensor enhances sensitivity by pasting the FBG on a substrate with a lever structure. This typical mechanical configuration mechanically amplifies the strain of the FBG to enhance overall sensitivity. As this mechanical configuration has a high stiffness, the proposed sensor can achieve a high resonant frequency and a wide dynamic working range. The sensing principle is presented, and the corresponding theoretical model is derived and validated. Experimental results demonstrate that the developed FBG-based strain sensor achieves an enhanced strain sensitivity of 6.2 pm/µε, which is consistent with the theoretical analysis result. The strain sensitivity of the developed sensor is 5.2 times of the strain sensitivity of a bare fiber Bragg grating strain sensor. The dynamic characteristics of this sensor are investigated through the finite element method (FEM) and experimental tests. The developed sensor exhibits an excellent strain-sensitivity-enhancing property in a wide frequency range. The proposed high-sensitivity FBG-based strain sensor can be used for small-amplitude micro-strain measurement in harsh industrial environments. © 2018 by the authors. Licensee MDPI, Basel, Switzerland. | |
dc.publisher | MDPI AG | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.source | Unpaywall 20201031 | |
dc.subject | Dynamics | |
dc.subject | Natural frequencies | |
dc.subject | Strain | |
dc.subject | Dynamic characteristics | |
dc.subject | Experimental test | |
dc.subject | Industrial environments | |
dc.subject | Mechanical configurations | |
dc.subject | Sensitivity enhancements | |
dc.subject | Strain sensitivity | |
dc.subject | Theoretical modeling | |
dc.subject | Wide frequency range | |
dc.subject | Fiber Bragg gratings | |
dc.type | Article | |
dc.contributor.department | BIOMEDICAL ENGINEERING | |
dc.description.doi | 10.3390/s18051607 | |
dc.description.sourcetitle | Sensors (Switzerland) | |
dc.description.volume | 18 | |
dc.description.issue | 5 | |
dc.description.page | 1607 | |
dc.published.state | Published | |
Appears in Collections: | Elements Staff Publications |
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