Evaluation of optical fiber bending transducer development for smart structure applications
Abstract
A fiber-optic bending transducer has been designed, built, and tested for smart-structure applications using communication-grade standard multimode and single-mode fibers for cost-effectiveness. The transducer is in the form of a strip of serpentine-bent optical fiber which can be either surface-bonded to, or embedded within, a given composite structure. A light source and a light sensor are employed; bending information is generated via light intensity variations created in the fiber's serpentine section. The transducer is experimentally found to have good directional sensitivity and very high output S/N ratio.
- Publication:
-
Review of Progress in Quantitative Nondestructive Evaluation
- Pub Date:
- 1991
- Bibcode:
- 1991qnde...10.1259D
- Keywords:
-
- Bending Moments;
- Optical Fibers;
- Optical Measuring Instruments;
- Smart Structures;
- Transducers;
- Aerospace Industry;
- Composite Structures;
- Graphite-Epoxy Composites;
- Instrumentation and Photography