| abstract |
Device comprising: a resonator probe, wherein the resonator probe has a proximal end and a distal end, a housing, a horn attached to the housing and adapted to receive the proximal end of the resonator probe, a plurality of piezoelectric ceramic bodies contained in the housing, a catching mechanism, wherein the catching mechanism allows the resonator probe to partially disengage from the horn, and a free mass that engages the resonator probe without being attached to it. |