OPTRA HAS RECENTLY DEVELOPED AN OPTICAL TECHNIQUE, INVOLVINGTHE USE OF A 2-FREQUENCY HENE LASER, FOR MAKING PRECISE NON-CONTACT MEASUREMENTS OF THE TRANSVERSE MOTIONS OF DIFFUSE SURFACES.

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$49,147.00
Award Year:
1985
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
2815
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Optra Inc
83 Pine St, Peabody, MA, 01960
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
DR MICHAEL HERCHER
PRINCIPAL INVESTIGATOR
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
OPTRA HAS RECENTLY DEVELOPED AN OPTICAL TECHNIQUE, INVOLVINGTHE USE OF A 2-FREQUENCY HENE LASER, FOR MAKING PRECISE NON-CONTACT MEASUREMENTS OF THE TRANSVERSE MOTIONS OF DIFFUSE SURFACES. OPTRA PROPOSES HEREIN TO APPLY THIS TECHNIQUE TO THE MEASUREMENT OF THE EXTENSION, UNDER APPLIEDLOAD, OF SAMPLES AT HIGH TEMPERATURES. THE PROPOSED TECHNIQUE IS PARTICULARLY ATTRACTIVE BECAUSE (1) IT REQUIRESNO CONTACT WHATSOEVER WITH THE SPECIMEN, (2) IT IS INSENSITIVE TO THE RADIATION EMITTED BY INCANDESCENT SURFACES, AND (3) IT PROVIDES FOR A PRACTICAL WORKING DISTANCE (THE SEPARATION BETWEEN THE SPECIMEN AND THE MEASUREMENT HEAD). THE PROPOSED MEASUREMENT SYSTEM CONSISTSOF A 2-FREQUENCY HENE LASER, AND ELECTRONIC PHASEMETER, AN EXTENSOMETER MEASUREMENT HEAD, AND A PC FOR DATA HANDLING AND OUTPUT FORMATTING.

* information listed above is at the time of submission.

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