Localised destruction device for soft structures with negative pressure elastic waves

摘要

The apparatus includes a piezoelectric source, distributed over a surface of brief elastic vibrations having negative peaks and means for focusing the oscillated tions on the target. The oscillation frequency is set between 0.3 and 10 MHz and the duration of wave trains, to values ​​between 1 s and 1 ms. The rate of fire is between a few Hz and 2 or 3 kHz.