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VERY-LOW-FREQUENCY HIGH-POWER SONAR PROJECTOR

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
6275
Program Year/Program:
1987 / SBIR
Agency Tracking Number:
6275
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
PLANNING SYSTEMS, INC.
12030 Sunrise Valley Drive Suite 400, Reston Plaza Reston, VA -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1987
Title: VERY-LOW-FREQUENCY HIGH-POWER SONAR PROJECTOR
Agency / Branch: DOD / NAVY
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

A VLF HIGH-POWERED BROADBAND SOURCE FOR ACTIVE SURVEILLANCE IS PROPOSED, BASED ON A NOVEL, PROPRIETARY TRANSDUCER ELEMENT: VIZ, A MODIFIED FLEXURE BAR WITH AN ELECTRODYNAMIC DRIVE AND TERMED A FITZ-GERALD FLEXBAR. THE COMBINATION OF THE FLEXBAR PRINCIPLES (INCLUDING TRUE NODAL MOUNTS) TOGETHER WITH A NEW HIGH PERFORMANCE MAGNETIC MATERIALS (E.G., SAMARIUM COBALT AND NEODYMIUM) MEANS THAT ELECTROMECHANICAL COUPLING COEFFICIENTS OF \0.6 CAN PROBABLY BE ACHIEVED. THE FLEXBARS ARE ARRANGED IN A CYLINDRICAL CONFIGURATION, WITH THE CYLINDER INTERIOR ACTING AS A HELMHOLTZ RESONATOR. IT IS SHOWN THAT, WITH THE PROPER SELECTION OF DESIGN PARAMETERS, SOURCE LEVELS OF 190-230 DB RE 1 MICRO PA AT 1 METER CAN PROBABLY BE ACHIEVED OVER THE FREQUENCY RANGE OF 5-40 HZ. TO DEMONSTRATE FEASIBILITY AND ESTABLISH A TECHNOLOGY BASE, IT IS PROPOSED TO FIRST DEVELOP A SMALLER PROJECTOR MODULE, SCALED-UP IN FREQUENCY BY A FACTOR OF 4; I.E., A THREE OCTAVE BAND OF 20-160 HZ. PHASE-I WOULD BE PRIMARILY CONCERNED WITH TRANSDUCER ELEMENT DEVELOPMENT. PHASE-II WOULD BE DIRECTED TOWARD DESIGNING, FABRICATING, AND TESTING A FREQUENCY SCALED (X4) PROJECTOR MODULE. BASED ON THE PERFORMANCE OF THE SCALED MODEL, A FULL-SIZED PROJECTOR MODULE IS PROPOSED TO BE CONSTRUCTED IN PHASE III.

Principal Investigator:

James w fitzgerald
2034473552

Business Contact:

Small Business Information at Submission:

Planning Systems Inc
95 Trumbull St - Ste B/foss Bl New London, CT 06320

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