Abstract
This paper discusses the development of a high speed magnetostrictive mirror deflectorthat is compact, power efficient, and requires only low voltage for excitation. Themagnetostrictive mirror deflector was designed and fabricated, and its performance tested.Three kinds of experiments were conducted to evaluate the performance, namely,identification of resonance frequencies, measurement of the angle of deflection, and study ofthe stability of the actuator under continuous use. The measurements were made using ahigh speed charge coupled device camera integrated with a PC using a custom made dataacquisition and analysis program. The deflector was able to produce more than 6.1 mrad at5.28 kHz with a minimal power of 0.8 W. Experiments conducted to test the repeatability ofthe measurements made have shown that the device is suitable for continuous dutyoperation. The results obtained in this study showed that the magnetostrictivemirror deflector is a good candidate for lidar and rapidly tunable laser system use.
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