Cantilever driven transduction apparatus
AssigneeImage Acoustics, Inc.
InventorsAlexander L. Butler, John L. Butler
Life of this patent
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Abstract
An electromechanical transducer which provides orthogonal translated motion to a piston through an attached lever arm connected to and driven by at least two electromechanical cantilever members, mounted on a separate inertial tail mass, and which under full array loading conditions provide a reduced resonance frequency that yields velocity control in the vicinity of that resonance.
Claims24
An electromechanical transduction apparatus that is comprised of at least two voltage driven piezoelectric cantilever benders operating in unison, a tail mass, at least one lever arm, said cantilever benders being attached on one end to respective ends of the tail mass and attached at the other end to respective ends of the lever arm, wherein the motion imparted to the lever arm from the cantilever benders provides an orthogonal translated motion relative to the cantilever motion.
An electromechanical apparatus that comprises:
- at least two piezoelectric bender drivers each having one and another ends;
- at least one concave lever arm having one and another ends;
- at least one piston radiator attached to the lever arm;
- at least one inertial tail mass having one and another ends;
- means for mounting the piezoelectric bender drivers with the one end thereof supported at respective one and another ends of the inertial tail mass, and with the another end thereof supported at respective one and another ends of the lever arm;
- and a housing with a compliant support.
A method of operating an electromechanical transduction apparatus that is comprised of at least two voltage driven piezoelectric cantilever benders, an inertial tail mass and a lever arm, including operating the benders in unison with equal outward and inward motions, attaching the respective benders rigidly on one end to separate locations of the inertial tail mass, attaching the respective benders at the other end to the lever arm and translating, through the benders, the benders motion into an orthogonal translated motion relative to the cantilever motion.
Dependencies are inferred from the claim text.