Class VIII Flextensional Transducers and Method of Assembly
AssigneeQorTek, Inc.
InventorsSafakcan Tuncdemir, Joshua Gambal, Gareth Knowles
Life of this patent
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Abstract
A semi-wave transducer is provided that comprises a circular or elliptic transduction shell that has sidewalls captured between identical opposing upper and lower circular or elliptic conical segments (platens), each having a surface geometry of a radially symmetric wave shape that includes a center region and a rim wherein the distance between the center region of the upper and lower platens greater than the distance between the rims of the upper and lower platens. In some embodiments, the surface geometry of the platens may be a jinc function or a recurve function.
Claims18
A circular flextensional transducer comprising:
- first and second platens of semi-wave geometry, each platen having a positive semi-wave angle;
- and
- a transductive element secured between the rims of said first and second platens and that is coaxially aligned with said first and second platens.
An elliptical flextensional transducer comprising:
- a first platen of semi-wave geometry, having a positive semi-wave angle and a generally flat rim;
- a first sidewall assembly including a stacked ring and sidewall, said first sidewall assembly being stacked with said first platen;
- a second sidewall assembly including a stacked ring and sidewall;
- a transductive element disposed between and captured by the rings of the first and second sidewall, said second sidewall assembly being stacked with said first sidewall assembly;
- a second platen of semi-wave geometry, having a positive semi-wave angle and a generally flat rim, said second platen being stacked with said second sidewall assembly.
17-24. (canceled)
A platen for an elliptical transducer having a surface geometry of a radially symmetric wave shape including a center region and a rim, the surface including a plurality of undulations that first form a local minima along a radial path from the rim to the center region, each of the plurality of undulations includes a local maxima, the local maximas increasing along the radial path from the rim to the center region, and the platen having a positive semi-wave angle.
Dependencies are inferred from the claim text.