EFFICIENT, HIGH-POWER MECHANICAL TRANSDUCERS FOR ACOUSTIC WAVES IN DENSE MEDIA,申请号US201414250223-传众专利搜索

EFFICIENT, HIGH-POWER MECHANICAL TRANSDUCERS FOR ACOUSTIC WAVES IN DENSE MEDIA

申请公布号：US2015293213(A1)

申请号：US201414250223

申请日期：2014.04.10

申请公布日期：2015.10.15

申请人：

FELBER FRANKLIN S.

发明人：FELBER FRANKLIN S.

分类号：G01S7/521;G01S15/04;F03B13/18;G01S15/02

主分类号：G01S7/521

地址：SAN DIEGO CA US

摘要：Mechanical transducers efficiently produce and couple high-power acoustic pulses into liquid and solid media. In a transmitter, mechanical excitation of a thin transmitting plate is provided by an actuator or a motor that causes a mass to strike or a drive rod to push the thin plate. If struck, as the thin plate rings down, it delivers much of its kinetic energy to acoustic radiation in the dense medium. Different mechanisms may be used to excite the plate, and different mechanisms may be used to couple the plate excitations into dense media. Conditions are found for efficient transduction of mechanical energy by a thin plate into acoustic radiation in solid and liquid media. A receiver comprises a plate having matching resonances to the transmitting plate. Discrete narrowband frequencies of acoustic signals are used to detect phase changes in waves reflected from a moving object. By interfering successive return pulses, small changes in phase and amplitude within the reflected beam lead to large changes in interfering voltage waveforms.

主权项：1. A mechanical transducer comprising a mechanical transmitter for transducing a mechanical impulse to acoustic energy in dense media comprising: an actuator or linear induction motor, a thin plate for transducing a mechanical impulse to acoustic energy, an impactor or drive rod comprising a mass, said actuator or linear induction motor causing said impactor or drive rod to strike or push said plate repetitively and induce oscillations in said plate, said transducer comprising an interface coupling oscillations from said plate to a liquid or solid medium, said actuator or linear induction motor comprising a source storing energy and a trigger to release stored energy as mechanical energy to cause said impactor or drive rod to strike or push said plate.