AN INVERSION ALGORITHM FOR ELECTROMAGNETIC NONDESTRUCTIVE EVALUATION

Award Information
Agency:
National Science Foundation
Branch:
N/A
Amount:
$64,723.00
Award Year:
1994
Program:
SBIR
Phase:
Phase I
Contract:
N/A
Agency Tracking Number:
27376
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Sabbagh Assoc Inc.
4635 Morningside Dr, Po Box 7706, Bloomington, IN, 47408
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
N/A
Principal Investigator
 Harold A Sabbagh
 (812) 339-8273
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE ABILITY TO SOLVE INVERSE PROBLEMS LIES AT THE HEART OF ELECTROMAGNETIC NONDESTRUCTIVE EVALUATION (NDE). THESE PROBLEMS ARE DIFFICULT TO SOLVE FOR TWO REASONS: THEY ARE MATHEMATICALLY ILLCONDITIONED, AND THEY ARE NONLINEAR, WHICH MEANS THAT THEY INVOLVE CONSIDERABLE COMPUTATIONAL EFFORT, OFTEN REQUIRING SUPERCOMPUTER CAPABILITIES. RESEARCHERS DESCRIBE AN INVERSION ALGORITHM FOR ELECTROMAGNETIC (EDDY-CURRENT) NDE THAT WILL RUN ON A WIDE CLASS OF MACHINES, FROM PERSONAL COMPUTERS AND WORKSTATIONS TO MINISUPERCOMPUTERS AND LARGER MACHINES, AND EXPECT AN IMPROVED ROBUSTNESS THAT WILL MITIGATE THE EFFECTS OF ILL-CONDITIONING. THE ALGORITHM EMPLOYS MODERN MATHEMATICAL IDEAS OF SET THEORETIC ESTIMATION AND ROBUST STATISTICAL ANALYSIS. THE TECHNOLOGY WILL BE APPLICABLE TO NONDESTRUCTIVE EVALUATION OF MATERIALS AND STRUCTURES, ELECTROMAGNETIC TOMOGRAPHY, COMPUTER VISION, AND MANUFACTURING SCIENCE AND TECHNOLOGY.

* information listed above is at the time of submission.

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