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Self-Sensing/-Active Acoustic Suppression Array

Award Information

Department of Defense
Award ID:
Program Year/Program:
2011 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Physical Optics Corporation
Electro-Optics Systems 1845 West 205th Street Torrance, CA 90501-
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Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2011
Title: Self-Sensing/-Active Acoustic Suppression Array
Agency: DOD
Contract: W56HZV-11-C-0230
Award Amount: $99,989.00


To address the OSD need for quiet APUs, Physical Optics Corporation (POC) proposes to develop a Self-sensing/-active Acoustic Suppression Array (SASA) for auxiliary power units (APUs). This proposed SASA is based on a set of self-powered sensors and autonomously responding actuators on a skin array requiring no complex processing hardware or software. The innovation in SASA in terms of self-sensing and self-actuation architecture enables the SASA to suppress acoustic energy emanating from APU subsystems in both the time and space domains, satisfying aural nondetectability limits over a range of 20 Hz to 10 kHz at 20 m, which directly addresses the Ground/Sea Vehicle Program requirements. In Phase I, POC plans to conduct a feasibility study of the SASA concept, develop a SASA hardware design that can safely be used within operating conditions/performance limits, and analyze/evaluate a Phase I SASA prototype. In Phase II, POC plans to develop, demonstrate, and validate the SASA technology integrated on an APU selected by the government.

Principal Investigator:

Keehoon Kim
Director, Electroacoustics Tech.
(310) 320-3088

Business Contact:

Gordon Drew
Chief Financial Officer
(310) 320-3088
Small Business Information at Submission:

Physical Optics Corporation
Electro-Optics Systems Division Bldg. 100 Torrance, CA -

EIN/Tax ID: 330118051
Number of Employees:
Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No