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US 2009/0268554 A1Published application
Underwater sound projector system and method of producing same
AssigneeUltra Electronics Canada Defence Inc.
InventorBruce Allan Armstrong
Life of this patent
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Abstract
An underwater sound projector system comprises multiple sound projectors, each sound projector being capable of producing acoustic pressures. The sound projectors are held in close proximity such that the sound projectors interact with one another via the acoustic pressures produced. In embodiments, the number and/or spacing of the sound projectors are adjusted based on target performance parameters.
Claims34
A method for producing an underwater sound projector system, the method comprising the steps of:
- providing multiple sound projectors, each sound projector being capable of producing acoustic pressures;
- and
- holding the sound projectors in close proximity such that a separation distance between a centre of one sound projector and a centre of a neighbouring sound projector is equal to or less than λ/8, wherein λ is a wavelength of an acoustic wave of the sound projector system at a system resonance frequency.
An underwater sound projector system comprising:
- multiple sound projectors capable of producing acoustic pressures;
- and
- means for holding the sound projectors in close proximity such that a separation distance between a centre of one sound projector and a centre of a neighbouring sound projector is equal to or less than λ/8, wherein λ is a wavelength of an acoustic wave of the sound projector system at a system resonance frequency.
Dependencies are inferred from the claim text.