Versatile Acoustic Source

摘要

A technique facilitates acoustic measurement and analysis in a variety of acoustic applications. An acoustic source is provided with a housing, e.g. a cylindrical housing, and a motor located within the housing. A piston is driven by the motor. The acoustic source also is provided with a radiating plate mounted along the housing and exposed to an environment surrounding the housing. A fluid passage contains actuating fluid and extends between the piston and the radiating plate. The piston and the radiating plate are linked by the fluid passage such that reciprocation of the piston by the motor causes oscillation of the radiating plate to create an acoustic signal. In some applications, a plurality of radiating plates and/or a plurality of motors may be arranged to enable monopole, dipole, cross-dipole, and/or quadrupole measurements.

主权项

1. A system for providing an acoustic signal, comprising:
an acoustic source having:
a tubular housing with a longitudinal axis;a plurality of motors disposed within the tubular housing and having a plurality of pistons, each motor having a corresponding piston oriented for reciprocal motion in a direction generally parallel with the longitudinal axis;a plurality of radiating plates arranged along an outer diameter of the tubular housing for oscillation in a lateral direction with respect to the longitudinal axis, the oscillation providing acoustic signals; anda plurality of fluid passages filled with an actuating fluid which places the plurality of pistons in communication with the plurality of radiating plates such that reciprocation of the plurality of pistons causes oscillation of the plurality of radiating plates.