Abstract:

Several fiber optic strain sensors embedded in the structure for composite material were given in this paper and all of them were used in the structure test for load-diagnosis and vibration for the composite material beam. The result shows that these sensors have good performance.

Key words: sma rt structur es, com po site m aterial beam, fiber optic sensor, str ain sensor, F-Pinter ferometer, self -mix ing laser diode interfer ometer