Abstract
This paper presents a long-range displacement measurement method by using a single-multi-single mode (SMS) fiber structure, attached to a flexible plate between two permanent poles and the optical time domain reflectometer (OTDR)-based interrogator. The SMS fiber structure sensors are prepared with two different configurations, i.e. straight and sinusoidal configurations. It is demonstrated that the displacement sensor can perform a displacement measurement with a range from 0 mm to 150 mm with a resolution of 0.159 mm. The sinusoidal configuration provides a better sensitivity than the straight configuration. The proposed sensor offers a low cost, and it can be implemented for quasi-distributed displacement measurement which is suitable for civil structure monitoring.
| Original language | English |
|---|---|
| Pages (from-to) | 166-171 |
| Number of pages | 6 |
| Journal | Photonic Sensors |
| Volume | 5 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Jun 2015 |
Keywords
- Displacement sensor
- OTDR
- SMS fiber structure
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