Low Frequency Projector for Long Range Acoustic Communications

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$79,916.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
N00014-11-M-0254
Agency Tracking Number:
N111-066-0888
Solicitation Year:
2011
Solicitation Topic Code:
N111-066
Solicitation Number:
2011.1
Small Business Information
Etrema Products, Inc.
2500 N. Loop Drive, Ames, IA, -
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
798683355
Principal Investigator:
Julie Slaughter
Research Engineer
(515) 296-8030
julie.slaughter@etrema.com
Business Contact:
Jon Snodgrass
Exec. VP and Chief Scient
(515) 296-8030
jon.snodgrass@etrema.com
Research Institution:
Stub




Abstract
Etrema proposes to develop a free-flooded Galfenol split-ring transducer that will provide 50-75 Hz of bandwidth on a 200 Hz carrier wave capable of operating at depths up to 1000 m with a source level greater than 190 dB re 1uPa @ 1m. While there are no specifications on size, the desire expressed by the technical point of contact is for a source that will fit on a standard pallet. By combining the depth-independence and bandwidth of a free-flooded magnetostrictive ring with the compact size of a split-ring, the resulting transducer should meet the objectives for the communications application. Design options which decrease size and improve performance will be explored.

* information listed above is at the time of submission.

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