Abstract
Applications of smart sensors have been extended to safety systems in the aerospace, transportation and civil engineering fields. In particular, structural health monitoring techniques using smart sensors have gradually become necessary and have been developed to prevent dangers to human life and damage to assets. Generally, smart sensors are based on electro-magnets and have several weaknesses, including electro-magnetic interference and distortion. Therefore, fiber optic sensors are an outstanding alternative to overcome the weaknesses of electro-magnetic sensors. However, they require expensive devices and complex systems. This paper proposes a new, affordable and simple sensor system that uses a single fiber to monitor pressures at multiple-points. Moreover, a prototype of the sensor system was manufactured and tested for a feasibility study. Based on the results of this experimental test, a relationship was carefully observed between the bend loss conditions and light-intensity. As a result, it was shown that impacts at multiple-points could be monitored.
| Translated title of the contribution | Sensor System for Multi-Point Monitoring Using Bending Loss of Single Mode Optical Fiber |
|---|---|
| Original language | Korean |
| Pages (from-to) | 39-45 |
| Number of pages | 7 |
| Journal | 비파괴검사학회지 |
| Volume | 35 |
| Issue number | 1 |
| DOIs | |
| State | Published - Feb 2015 |