SPRAYER

摘要

The sprayer comprises essentially a ultrasonic excitation system (2) to which is coupled a narrow flexion strip (1) of such a reduced thickness that it has not a proper rigidity sufficient for a linear orientation. The excitation enables to produce on the flexion strip a plurality of successive dense nodal lines substantially parallel. The undeformability of the flexion strip is obtained by means of a mechanical fixation and a prestress device (3).