High Resolution Corrosion Mapping via In-Situ White Light Interferometry for Complex Geometries

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-09-C-0499
Agency Tracking Number: N092-093-0819
Amount: $79,995.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2009
Solicitation Topic Code: N092-093
Solicitation Number: 2009.2
Small Business Information
1 Riverside Circle, Suite 400, Roanoke, VA, 24016
DUNS: 627132913
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Laura McGrath
 Principal Investigator
 (540) 769-8400
Business Contact
 Laura Rasnick
Title: Contract Administrator
Phone: (540) 769-8431
Email: submissions@lunainnovations.com
Research Institution
Corrosion damage costs the Navy time and money by requiring critical components to be monitored for fatigue on a scheduled basis rather than by need. When quantitative analysis of corrosion data is obtained, lifetime models and corresponding depot level re-work can be planned appropriately while maintaining fleet readiness. White light interferometry (WLI) uses white light interference patterns to determine surface features with vertical nanometer resolution. WLI has been shown to provide pitting and surface depth erosion of corroded structures. Luna Innovations Incorporated proposes to develop a conceptual design for a portable WLI that is capable of measuring the inside diameter of shafts and other complex geometries of mission critical structural components via three approaches 1) improve the situation awareness of the optical head to improve the accuracy of portable image acquisition, 2) utilize software programming to analyze a region of interest to reduce sampling time and file size and 3) a novel optic design to measure fillets and other high slope regions. It is anticipated that the conceptual prototype will be built and demonstrate a design that is simple to employ with improved resolution.

* Information listed above is at the time of submission. *

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