DRIVE UNIT OF SOURCES OF ACOUSTIC SIGNALS Russian patent published in 1998 - IPC

FIELD: seismic investigations. SUBSTANCE: drive unit of sources of acoustic signals having sound emitting surfaces set in oscillatory motion has rotary electric motor and axle coupled to it that includes section which outer outline of cross-section is at least partially not circumference over length of this section but is preferably smoothly rounded. In addition unit has number of pushers installed radially with reference to axle so that with rotation of axle nonround section of axle acts on its internal ends since external ends of pushers 21 and 22 excite vibrations of sound emitting surface. EFFECT: enhanced generation of acoustic signals. 10 cl, 5 dwg