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

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$373,381.00
Award Year:
2008
Program:
STTR
Phase:
Phase II
Contract:
N68335-08-C-0357
Award Id:
77081
Agency Tracking Number:
N064-011-0276
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
44 Hunt Street, Watertown, MA, 02472
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
073804411
Principal Investigator:
Timothy Tiernan
Group Director
(617) 668-6800
TTiernan@rmdinc.com
Business Contact:
Gerald Entine
President
(617) 668-6800
GEntine@rmdinc.com
Research Institution:
NORTHEASTERN UNIV.
Nian Sun
360 Huntington Avenue
Boston, MA, 2115
(617) 373-3351
Nonprofit college or university
Abstract
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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