Inventors:
John H. Thompson - Pittsburgh PA
George R. Douglas - Pittsburgh PA
Charles R. Wilson - Glen Burnie MD
Assignee:
Westinghouse Electric Corp. - Pittsburgh PA
International Classification:
H04B 1300
Abstract:
A dipole hydrophone which includes a radiation target for acoustic energy and a counterbalancing mass. A first multilaminar magnetostrictive arm is connected to the radiation target at its center gravity and a second multilaminar magnetostrictive arm is similarly connected to the center of gravity of the counterbalancing mass. The lower portion of each arm is slotted to define two legs, and a permanent magnet, in conjunction with the slotted structure forms a closed magnetic path for flux. Windings for sensing a change in flux are slipped over the leg portions, yielding a high gain device. The two arms are connected by a coupling member which is compliantly suspended from a support structure.