OPTIC READOUT

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$49,281.00
Award Year:
1985
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
2138
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Optra Inc
83 Pine St - W Peabody Office, Peabody, MA, 01960
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
GEERT WYNTJES
(617) 535-7670
Business Contact:
() -
Research Institution:
n/a
Abstract
RESEARCH LEADING TO AN ABSOLUTE THERMOMETER WITH A FIBER OPTIC READOUT IS PROPOSED. THE BASIC SENSING ELEMENT IS A SHORT LENGTH OF SAPPHIRE. UNDER A PREVIOUSLY FUNDED EFFORT, OPTRA HAS DEMONSTRATED THAT THE OPTICAL BIREFRINGENCE OF SAPPHIRE IS HIGHLY PREDICTABLE AND A NEARLY LINEAR FUNCTION OF TEMPERATURE. READOUT OF THE BIREFRINGENCE WOULD BE VIA A FIBER OPTIC LINK USING OPTRA'S UNIQUE 2-FREQUENCY HETERODYNE LASER. THE USE OF A SAPPHIRE ELEMENT PROMISES A SENSOR HIGHLY TOLERANT TO THE SEVERE ENVIRONMENT INSIDE A TURBINE ENGINE IN TERMS OF EROSION, CORROSION AND VIBRATION. ITS SMALL SIZE SHOULD CAUSE IT TO ONLY MINIMALLY INTERFERE WITH THE GAS FLOW. FOR THIS SPECIFIC EFFORT THE MAIN EMPHASIS WOULD BE CHARACTERIZING THE FIBER OPTIC LINK AND THE EFFECTS OF VIBRATION ON THE TRANSDUCER ELEMENT.

* information listed above is at the time of submission.

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