Time Reversal Acoustic Structural Health Monitoring Using Array of Embedded Sensors

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNL04AB54P
Agency Tracking Number: 030170
Amount: $99,886.00
Phase: Phase I
Program: STTR
Awards Year: 2004
Solicitation Year: 2003
Solicitation Topic Code: T7.02
Solicitation Number: N/A
Small Business Information
P1753 Linvale Harbourton Rd., Lamberville, NJ, 08530-3302
DUNS: 959147026
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Alexander Sutin
 Principal Investigator
 (201) 216-5290
Business Contact
 Souren Airapetian
Title: Vice President
Phone: (609) 883-0100
Email: suren@artannlabs.com
Research Institution
 Not Available
 Castle Point on Hudson
Hoboken, NJ, 07030
 (201) 216-5290
 Domestic nonprofit research organization
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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