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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Tianying Chang Dongsheng Li Qingmei Sui Lei Jia Zhanxiong Wei Hongliang Cui |
| Copyright Year | 2007 |
| Description | Author affiliation: Shandong Univ., Jinan (Tianying Chang; Dongsheng Li; Qingmei Sui; Lei Jia) |
| Abstract | Optical fiber Bragg gratings-based strain sensor modules were designed, fabricated, and embedded in a three-dimensional geo-mechanical model of a forked tunnel. These sensors recorded in-situ the strains of the embedded pots in the process of digging the tunnel. These results were compared with those of conventional strain gauges and of predictions from a detailed numerical analysis. The results indicate that the three sets of data (from the fiber Bragg grating strain sensors, the strain gauges and the numerical simulation) follow essentially the same trends and are basically consistent with one another. However, the fiber Bragg grating strain sensors recorded data that are much closer to those predicted with an accurate numerical model, compared with data recorded by the conventional strain gauges. The present experiment provided convincing evidence that the fiber Bragg grating strain sensors have much higher reliability and are more effective than the traditional strain sensors. As such, they are potentially strong candidates for applications in the long-term structural health monitoring of large-scale geotechnical engineering projects. |
| Starting Page | 1652 |
| Ending Page | 1657 |
| File Size | 749281 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424415311 |
| DOI | 10.1109/ICAL.2007.4338837 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-08-18 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Optical fibers strain gauge strain detection Capacitive sensors Bragg gratings Optical fiber sensors Optical design Numerical analysis Fiber gratings Numerical simulation fiber Bragg grating Numerical models Optical sensors forked tunnel |
| Content Type | Text |
| Resource Type | Article |
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