Time Reversal Acoustic Structural Health Monitoring Using Array of Embedded Sensors

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,886.00
Award Year:
2004
Program:
STTR
Phase:
Phase I
Contract:
NNL04AB54P
Award Id:
72087
Agency Tracking Number:
030170
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
P1753 Linvale Harbourton Rd., Lamberville, NJ, 08530
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
959147026
Principal Investigator:
AlexanderSutin
Principal Investigator
(201) 216-5290
asutin@stevens-tech.edu
Business Contact:
SourenAirapetian
Vice President
(609) 883-0100
suren@artannlabs.com
Research Institute:
Stevens Institute of Technology
Michael Bruno
Castle Point on Hudson
Hoboken, NJ, 07030
(201) 216-5290
Nonprofit college or university
Abstract
Time Reversal Acoustic (TRA) structural health monitoring with an embedded sensor array represents a new approach to in-situ nondestructive evaluation of air-space systems. The suggested approach is based on a sufficient improvement of recently developed Electro-Mechanical Impedance method and will use a similar array of embedded sensors. The application of TRA principles will significantly improve the system?s ability to detect the presence of structural faults and localize damage due to directive focusing of the ultrasonic signals radiated by many sensors. Scanning of the focus will give the necessary information for tomographic mapping of damage and degradation. During Phase I, the principles of TRA system with embedded sensors for damage detection will be developed and feasibility test will be conducted on composite and metal parts with increasing levels of damage. The developed TRA software and hardware will form a basis for the prototype that will be built in Phase II.

* information listed above is at the time of submission.

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