USA flag logo/image

An Official Website of the United States Government

Liquid Crystal-based Underwater Imager

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
59803
Program Year/Program:
2002 / SBIR
Agency Tracking Number:
97008-003
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
EMPIRICAL TECHNOLOGIES CORPORATION
BOX 8175, 3046A BERKMAR DRIVE CHARLOTTESVILLE, VA 22906-8175
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2002
Title: Liquid Crystal-based Underwater Imager
Agency / Branch: DOD / NAVY
Contract: N66604-01-C-5306
Award Amount: $0.00
 

Abstract:

"The direct conversion of acoustical images into visible images has been accomplished by ETC and others. Acoustic images formed at the back focal plane of an acoustic lens were directly converted and photographed. This method has the potential of allowinginexpensive hand held imagers for divers in littoral waters. The Phase I work laid the foundation for measuring properties of liquid crystal (LC) materials, which are fundamentally important to acoustic imaging. Chief among these was measurement of theacoustic anisotropy. Also important were sensitivity, dynamic range, speed of response, and operational temperature. All the necessary tests and analyses regarding acoustic lenses and general materials were developed during the Phase I for designing animager. Phase II work involves investigations of specially engineered LC materials with enhanced acoustic sensitivity and a new method of LC imaging. The new materials offer many enhancements unavailable in the LCs commonly used for displays. This newmethod of imaging offers a simple, but effective method with the possibility of greatly enhancing the dynamic range.BENEFITS: The benefit to the Navy is the production of a small, portable, and inexpensive acoustic imager for deployment in low visibility,littoral environments. The direct transformation of a sonar return to an intensity map at the back focal plane of a conventional lens eliminates a heavy computational burden from the

Principal Investigator:

Martin C. Baruch, Ph.D.
Chief Scientist
8042967000

Business Contact:

David W. Gerdt Ph.D.
President
8042967000
Small Business Information at Submission:

Empirical Technologies Corp.
P.O. Box 8175 Charlottesville, VA 22906

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No