This document discusses active vibration control using magnetostrictive transducers. It first defines magnetostriction as a property of ferromagnetic materials where their shape or dimensions change with magnetization. Magnetostrictive materials can convert between magnetic and kinetic energy and are used to build actuators and sensors. An active vibration control system uses a magnetostrictive transducer as an actuator along with an accelerometer and control system to apply counter forces that reduce structural vibrations. Magnetostrictive transducers consist of a magnetostrictive rod within a coil that is preloaded with poles and mass/springs. Active vibration control has advantages like high sensitivity and accuracy in reducing vibrations in applications like manufacturing machinery. F

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5. Magnetostrictive materials can convert magnetic energy into kinetic energy, or the reverse, and are used to build actuators and sensors.

9. Components Accelerometer: motion sensor Control: high speed microprocessor based system Actuator: magnetostrictive type ,piezoelectric material

10. Type of actuators

12. Highly accurate

13. Structural vibration can be reduced effectivelyadvantages

14. Appliation Isolation of microelectronics and signal processing unit. Precision manufacturing area Controlling vibration in cutting tool Automotive industry Machine tools…

18. Fiber optic sensing : temperature, pressure measurement.

19. Light can modulated and transmitted over large distance.

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