Abstract
A carbon composite strain sensing system using an embedded array of polymide-coated fiber Bragg grating sensors, which are interrogated by a tunable laser, is described. The system is controlled from a personal computer using a customized program. The system was tested using a composite panel consisting of 28 plies of carbon fiber. Consistent strain measurements were achieved using a laser scan resolution of 0.02 nm, which corresponds to a strain resolution of approximately 15 μ. Simulations of the panel were carried out using the Marc/Mentat finite element program for advanced engineering analysis. The experimental results compared well to those obtained from the simulations.
| Original language | English |
|---|---|
| Article number | 02 |
| Pages (from-to) | 13-19 |
| Number of pages | 7 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5758 |
| DOIs | |
| Publication status | Published - 2005 |
| Event | Smart Structures and Materials 2005 - Smart Sensor Technology and Measurement Systems - San Diego, CA, United States Duration: 7 Mar 2005 → 9 Mar 2005 |
Keywords
- Bragg grating
- Fiber optic sensor
- Strain sensing