ACOUSTIC TRANSMITTER

摘要

A drive package for acoustic transmitters comprising a frame (6) of magnetic material with windows for accommodating driving members (20) and prestress devices (22). Two windows with driving members and an intermediate window with a prestress device form a column which, by means of pressure studs (24) in the driving members and holes (14) in the frame, clamp pressure rods (4) located inside the transmitter against the shell (1) of the transmitter. The drive package may comprise several columns.