Portable High Resolution Imaging for NDI of Hot Section Aero Turbine Components

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-08-C-0357
Agency Tracking Number: N064-011-0276
Amount: $373,381.00
Phase: Phase II
Program: STTR
Awards Year: 2008
Solicitation Year: 2006
Solicitation Topic Code: N06-T011
Solicitation Number: N/A
Small Business Information
44 Hunt Street, Watertown, MA, 02472
DUNS: 073804411
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Timothy Tiernan
 Group Director
 (617) 668-6800
Business Contact
 Gerald Entine
Title: President
Phone: (617) 668-6800
Email: GEntine@rmdinc.com
Research Institution
 Nian Sun
 360 Huntington Avenue
Boston, MA, 2115
 (617) 373-3351
 Nonprofit college or university
New technology is needed for the nondestructive inspection (NDI) of defects in gas turbine engines. This is particularly true for components such as turbine blades with fretting fatigue defects that are difficult to detect and characterize with existing NDI equipment. The lack of detailed flaw detection and characterization raises safety concerns, hampers fleet readiness and negatively impacts the life of hot section components. RMD, in collaboration with the Electrical Engineering Department at Northeastern University, proposes a new NDI technology based on high resolution, 3-D imaging of eddy currents induced in metallic jet engine components to characterize microscopic fatigue cracks. A portable high resolution imager for magnetic fields will be developed based on a microscopic anisotropic magnetoresistive (AMR) sensor. With sensitivity nearly 1 million times better than the coils now used as eddy current sensors, the NDI system will be used to detect and map the dimensions and positions of microscopic defects in metallic components. RMD and NEU have broad experience in AMR sensor development, model based design of NDI systems, and development and manufacture of sophisticated sensor systems.

* information listed above is at the time of submission.

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