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Energy conversion and high power pulse production using miniature piezoelectric compressors

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3 Author(s)
Engel, T.G. ; Dept. of Electr. Eng., Missouri Univ., Columbia, MO, USA ; Keawboonchuay, C. ; Nunnally, W.C.

The design, construction, and testing of miniature, high-power piezoelectric compression generators are presented and discussed. The piezoelectric compression generators are located inside high speed, 30-mm projectiles that are launched with a high pressure helium gun to velocities of approximately 300 m/s. The large deceleration force created when the projectile imparts the ground is used to power the piezoelectric compression generator. The peak output power is approximately 25 kW into a 10-Ω load with the output pulse length on the order of 1 μs. Good agreement is found between the experimental results and the theoretical predictions

Published in:

Plasma Science, IEEE Transactions on  (Volume:28 ,  Issue: 5 )