EXTENDED AREA ACOUSTIC IMPULSE GENERATOR

摘要

An acoustic impulse generator for producing in a liquid body acoustic impulses useful, for example, in geophysical explorations. The generator includes a housing which defines an enclosed chamber having a flexible wall. Driving means in one operating condition cause the flexible wall to execute a forward stroke in the liquid body thereby storing potential energy in the liquid body. The driving means in another operating condition allow the flexible wall to execute a return stroke in a relatively short time interval thereby generating an acoustic impulse.