Submarine Non-Hull Penetrating (Wireless) Hydrophone

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$69,238.00
Award Year:
2005
Program:
SBIR
Phase:
Phase I
Contract:
N65538-05-M-0204
Agency Tracking Number:
N051-065-1390
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
SONATECH, INC.
879 Ward Drive, Santa Barbara, CA, 93111
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
063802250
Principal Investigator:
Donald Norris
Transducer Department Manager
(805) 690-5353
norris@sonatech.com
Business Contact:
Michael Ornee
President
(805) 690-5300
ornee@sonatech.com
Research Institution:
n/a
Abstract
An acoustic device capable of acoustically transmitting wide-bandwidth information through the pressure hull of a submarine requires careful design but appears feasible based on prior work performed at Sonatech. The current application addresses only out-board to in-board, or wet-side to dry-side, communication; however, the system can be easily modified for two-way communication-a vital capability in emergency situations. Sonatech's approach is to focus on the fundamental problem that limits channel bandwidth for this application: interference from bounce-path signals off the hull interfaces and discontinuities. In our initial tests we will utilize COTS NDT transducers, but we will use acoustic modeling and analysis to design and develop custom transducers that are accurately impedance-matched to the hull and that provide narrow beams-these features strongly reduce bounce path interference. Our analysis, modeling, and testing will address all of the important design parameters: operating frequency and achievable channel bandwidth, impedance matching the front and back faces of the transducers, signal encoding and protocol, and system power requirements.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government