Modal Domain Fiber Optic Sensor For Closed Loop Vibration Control Of A Flexible Beam

D. Cox; D. Thomas; K. Reichard; D. Lindner; R. O. Claus

doi:10.1117/12.963112

5 February 1990 Modal Domain Fiber Optic Sensor For Closed Loop Vibration Control Of A Flexible Beam

D. Cox, D. Thomas, K. Reichard, D. Lindner, R. O. Claus

Proceedings Volume 1170, Fiber Optic Smart Structures and Skins II; (1990) https://doi.org/10.1117/12.963112
Event: OE/FIBERS '89, 1989, Boston, United States

Abstract

Few mode optical fibers have been shown to produce predictable interference patterns when strained. Here we describe the use of a modal domain sensor in a vibration control experiment. An optical fiber is bonded along the length of a flexible beam. A control signal derived from the output of the modal domain sensor is used to suppress vibrations induced in the beam. A distributed effect model for the modal domain sensor is developed. This model is combined with models of the beam and actuator dynamics to produce a system suitable for control design. Simulated results are presented.

Citation Download Citation

D. Cox, D. Thomas, K. Reichard, D. Lindner, and R. O. Claus "Modal Domain Fiber Optic Sensor For Closed Loop Vibration Control Of A Flexible Beam", Proc. SPIE 1170, Fiber Optic Smart Structures and Skins II, (5 February 1990); https://doi.org/10.1117/12.963112

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