A Heterodyne interferometer for TCLE Measurements

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$69,904.00
Award Year:
1997
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
36021
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Metrolaser
18006 Skypark Circle #108, Irvine, CA, 92614
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
James D. Trolinger, Ph.d.
(714) 553-0688
Business Contact:
() -
Research Institution:
n/a
Abstract
In measuring the thermal coefficient of linear expansion (TCLE) of highly-filled polymers used in solid propellants, measurement discrepancies as high as 80% between independent laboratories on the same sample have been reported. Such large inaccuracies in TCLE value can result in very large errors in structural integrity and service life analyses of various propulsion systems. Clearly better instruments are needed to improve measurement accuracy and new standardized methods must be developed that will produce more consistent results. We propose an innovative use of ultra-high resolution interferometry in the development of an instrument that will be capable of measuring expansions of less than 1 Angstrom. Under the conditions outlined in this proposal, this will lead to the capability of measuring TCLE to within about 0.35 x 10-8 in/(in-¿F) for a 1 cm sample.

* information listed above is at the time of submission.

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