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US 4,604,542 AGranted
Broadband radial vibrator transducer with multiple resonant frequencies
AssigneeGould Inc.
InventorStephen C. Thompson
Life of this patent
Estimating the term…
Abstract
A broadband radial vibrator transducer having at least two laminar resonant sections coupled to a radial electromechanical transducer element where each laminar section includes at least two layers. Each resonant section has a mass layer and a compliant member layer where the compliant member layer is fixed between the transducer element and the mass layer. The compliant member allows the resonant section to mechanically resonate along with the transducer element providing at least two resonant frequencies, thereby expanding the bandwidth of the transducer.
Claims15
A transducer, comprising:
- a radial electromechanical transducer element having a radiating surface on an outer circumference of said radial electromechanical transducer element;
- and
- at least two mechanically resonant sections coupled to the radiating surface of said radial electromechanical transducer element and each mechanically resonant section having a laminar structure.
A transducer, comprising:
- transducer means for providing electromechanical conversion in an outward direction on an outer circumferential surface;
- and
- at least two resonant means, coupled to the outer circumferential surface of said transducer means, for allowing said transducer to resonate outward at at least first and second resonant frequencies.
Dependencies are inferred from the claim text.