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Acoustically Transparent Mid-Frequency SONAR Projector

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-22-C-0120
Agency Tracking Number: N201-066-0775
Amount: $1,199,267.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N201-066
Solicitation Number: 00.1
Solicitation Year: 2020
Award Year: 2022
Award Start Date (Proposal Award Date): 2021-12-08
Award End Date (Contract End Date): 2023-12-15
Small Business Information
40 Willard Street
Quincy, MA 02169-1252
United States
DUNS: 101163707
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 John Butler
 (781) 383-2002
Business Contact
 Victoria Curtis
Phone: (617) 481-2859
Research Institution

A means for adding mid band sonar projectors to current passive hydrophone arrays, without reducing hydrophone performance has been developed.  During the Phase I of this SBIR Program, small “acoustically transparent” SONAR projectors that meet these requirements were developed which use a unique yet simple transparency means. To accomplish this goal, Image Acoustics developed a Phase I method which electrically reduces the mechanical Q of the added projectors during their off operating condition while the hydrophones receive the return signal from the target. These conditions and results were demonstrated through FEA modeling and measurement. We propose to optimize the design of the projectors and tuning system and verify their output and apparent transparency during the receive cycle. We would initially verify operation with hydrophone and projector, then with a small array with projectors on both sides of the hydrophone and finally with a larger array of elements to include and evaluate array affects.

* Information listed above is at the time of submission. *

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