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LOW-DRIFT FIBER OPTIC SONAR DOME PRESSURE TRANSDUCER

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
9753
Program Year/Program:
1989 / SBIR
Agency Tracking Number:
9753
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
GEO-CENTERS, INC.
7 Wells Avenue Newton Centre, MA 02459
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1989
Title: LOW-DRIFT FIBER OPTIC SONAR DOME PRESSURE TRANSDUCER
Agency / Branch: DOD / NAVY
Contract: N/A
Award Amount: $49,821.00
 

Abstract:

THE DEVELOPMENT OF A HIGHLY RELIABLE, LOW DRIFT, FIBER OPTIC HYDROSTATIC PRESSURE SENSOR FOR SONAR DOMES IS PROPOSED. THE SENSOR IS BASED ON THE ELASTO-OPTIC EFFECT IN OPTICAL CRYSTALS. THE SENSING ELEMENT IS AN OPTICAL CRYSTAL, AND BECAUSE NO MOVING PARTS ARE INVOLVED, WEAR AND FATIGUE ARE REDUCED TO A MINIMUM. BECAUSE OF ITS INHERENT LINEARITY AND LOW DRIFT, THE PROPOSED PRESSURE SENSOR WILL BE IDEAL FOR MONITORING PRESSURE IN SHIPBOARD SONAR DOMES. PRESSURE ALTERS THE BIREFRINGENCE PROPERTIES OF CRYSTALS AND CHANGES THE STATE OF POLARIZATION OF LIGHT PASSING THROUGH THE CRYSTAL. THE GOAL OF THE PHASE I RESEARCH AND DEVELOPMENT EFFORT IS TO DEMONSTRATE THE FEASIBILITY OF THIS PRESSURE SENSING TECHNIQUE. SUITABLE OPTICAL MATERIALS WILL BE IDENTIFIED THROUGH A LITERATURE SURVEY. THE HIGHEST RANKED CRYSTAL MATERIALS WILL BE TESTED UNDER HYDROSTATIC PRESSURES. A TEMPERATURE COMPENSATION METHOD USING A SECOND ELASTOOPTIC CRYSTAL IS PROPOSED. MATERIALS FOR THE TEMPERATURE COMPENSATION CRYSTAL WILL BE IDENTIFIED AND THE TEMPERATURE INDEPENDENCE OF THE PRESSURE READING WILL BE EXPERIMENTALLY VERIFIED.

Principal Investigator:

Malcolm C Smith
6179647070

Business Contact:

Small Business Information at Submission:

Geo-centers Inc
7 Wells Ave Newton Centre, MA 02159

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