Title | ||
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Pendulum-Type Hetero-Core Fiber Optic Accelerometer for Low-Frequency Vibration Monitoring. |
Abstract | ||
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In this paper, a novel pendulum-type accelerometer based on hetero-core fiber optics has been proposed for structural health monitoring targeting large-scale civil infrastructures. Vibration measurement is a non-destructive method for diagnosing the failure of structures by assessing natural frequencies and other vibration patterns. The hetero-core fiber optic sensor utilized in the proposed accelerometer can serve as a displacement sensor with robustness to temperature changes, in addition to immunity to electromagnetic interference and chemical corrosions. Thus, the hetero-core sensor inside the accelerometer measures applied acceleration by detecting the rotation of an internal pendulum. A series of experiments showed that the hetero-core fiber sensor linearly responded to the rotation angle of the pendulum ranging within (-6 degrees, 4 degrees), and furthermore the proposed accelerometer could reproduce the waveform of input vibration in a frequency band of several Hz order. |
Year | DOI | Venue |
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2018 | 10.3390/s18082528 | SENSORS |
Keywords | Field | DocType |
structural health monitoring,fiber optic sensor,accelerometer,hetero-core,low-frequency vibration measurement | Optical fiber,Low frequency,Fiber optic sensor,Structural health monitoring,Accelerometer,Electronic engineering,Engineering,Acoustics,Vibration,Pendulum | Journal |
Volume | Issue | Citations |
18 | 8.0 | 0 |
PageRank | References | Authors |
0.34 | 1 | 4 |
Name | Order | Citations | PageRank |
---|---|---|---|
Hiroshi Yamazaki | 1 | 7 | 3.28 |
Ichiro Kurose | 2 | 0 | 0.34 |
Michiko Nishiyama | 3 | 22 | 7.59 |
Kazuhiro Watanabe | 4 | 24 | 8.31 |