Signal enhancement of FBG-based cantilever accelerometer by resonance suppression using magnetic damper
In this work, we propose the use of a magnetic damper in the FBG-based cantilever accelerometer (FCA) to reduce the distortion of signal due to the infinite signal amplification at the resonant frequency. The magnetic damper comprises a permanent magnet and a U-shape aluminum structure. The permanen...
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| Format: | Article |
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Elsevier
2020
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| author | Udos, Waldo Lee, Yen Sian Lim, Kok Sing Ong, Zhi Chao Zaini, Muhammad Khairol Annuar Ahmad, Harith |
| author_facet | Udos, Waldo Lee, Yen Sian Lim, Kok Sing Ong, Zhi Chao Zaini, Muhammad Khairol Annuar Ahmad, Harith |
| author_sort | Udos, Waldo |
| collection | UM |
| description | In this work, we propose the use of a magnetic damper in the FBG-based cantilever accelerometer (FCA) to reduce the distortion of signal due to the infinite signal amplification at the resonant frequency. The magnetic damper comprises a permanent magnet and a U-shape aluminum structure. The permanent magnet serves as a load and is attached to one end of the cantilever whereas the aluminum structure serves as a damper to suppress the cantilever resonance. In the experiment, it is found that the distortion on the detected signal by FCA is reduced when the damper is incorporated, and the detected signal has a higher cross-correlation coefficient (CCC) with a reference signal from a standard capacitive based accelerometer. The introduction of a magnetic damper enables the vibration detection of the FCA in the resonant frequency region with reduced signal distortion and it widens the detection range of the FCA. © 2020 Elsevier B.V. |
| first_indexed | 2024-03-06T06:03:46Z |
| format | Article |
| id | um.eprints-24791 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T06:03:46Z |
| publishDate | 2020 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | um.eprints-247912020-06-11T03:30:43Z http://eprints.um.edu.my/24791/ Signal enhancement of FBG-based cantilever accelerometer by resonance suppression using magnetic damper Udos, Waldo Lee, Yen Sian Lim, Kok Sing Ong, Zhi Chao Zaini, Muhammad Khairol Annuar Ahmad, Harith QC Physics TJ Mechanical engineering and machinery In this work, we propose the use of a magnetic damper in the FBG-based cantilever accelerometer (FCA) to reduce the distortion of signal due to the infinite signal amplification at the resonant frequency. The magnetic damper comprises a permanent magnet and a U-shape aluminum structure. The permanent magnet serves as a load and is attached to one end of the cantilever whereas the aluminum structure serves as a damper to suppress the cantilever resonance. In the experiment, it is found that the distortion on the detected signal by FCA is reduced when the damper is incorporated, and the detected signal has a higher cross-correlation coefficient (CCC) with a reference signal from a standard capacitive based accelerometer. The introduction of a magnetic damper enables the vibration detection of the FCA in the resonant frequency region with reduced signal distortion and it widens the detection range of the FCA. © 2020 Elsevier B.V. Elsevier 2020 Article PeerReviewed Udos, Waldo and Lee, Yen Sian and Lim, Kok Sing and Ong, Zhi Chao and Zaini, Muhammad Khairol Annuar and Ahmad, Harith (2020) Signal enhancement of FBG-based cantilever accelerometer by resonance suppression using magnetic damper. Sensors and Actuators A: Physical, 304. p. 111895. ISSN 0924-4247, DOI https://doi.org/10.1016/j.sna.2020.111895 <https://doi.org/10.1016/j.sna.2020.111895>. https://doi.org/10.1016/j.sna.2020.111895 doi:10.1016/j.sna.2020.111895 |
| spellingShingle | QC Physics TJ Mechanical engineering and machinery Udos, Waldo Lee, Yen Sian Lim, Kok Sing Ong, Zhi Chao Zaini, Muhammad Khairol Annuar Ahmad, Harith Signal enhancement of FBG-based cantilever accelerometer by resonance suppression using magnetic damper |
| title | Signal enhancement of FBG-based cantilever accelerometer by resonance suppression using magnetic damper |
| title_full | Signal enhancement of FBG-based cantilever accelerometer by resonance suppression using magnetic damper |
| title_fullStr | Signal enhancement of FBG-based cantilever accelerometer by resonance suppression using magnetic damper |
| title_full_unstemmed | Signal enhancement of FBG-based cantilever accelerometer by resonance suppression using magnetic damper |
| title_short | Signal enhancement of FBG-based cantilever accelerometer by resonance suppression using magnetic damper |
| title_sort | signal enhancement of fbg based cantilever accelerometer by resonance suppression using magnetic damper |
| topic | QC Physics TJ Mechanical engineering and machinery |
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