AUTOMATION OF THE DETECTION OF DEFECTS IN THE HEAT-EXCHANGERTUBING OF NUCLEAR STEAM GENERATORS

Award Information
Agency: Department of Energy
Branch: N/A
Contract: N/A
Agency Tracking Number: 394
Amount: $293,907.00
Phase: Phase II
Program: SBIR
Awards Year: 1984
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Greenbriar Systems Inc.
9900 Main Street, Suite 303, Fairfax, VA, 22031
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Leo J. O'brien
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE DETECTION OF DEFECTS IN THE HEAT EXCHANGER TUBING OF NUCLEAR STEAM GENERATORS IS CURRENTLY PERFORMED BY AN INSPECTION TEAM OF EXPERIENCED ANALYSTS USING A NUMBER OF VISUAL AND MANUAL OPERATIONS. THE PRESENT PROCEDURE REQUIRES CONSIDERABLE TIME AND EFFORT, AND IS SUBJECT TO THE UNCERTAINTIES OF HUMAN INTERPRETATION AND JUDGEMENT. THE OBJECTIVES OF THIS PROPOSED RESEARCH PROJECT ARE TO EVALUATE ALTERNATIVE DEFECT DETECTION SCHEMES, SELECT AN OPTIMUM DETECTION ALGORITHM, TEST THIS OPTIMUM PROCEDURE, AND EVALUATE THE FEASIBILITY OF INCORPORATING THE ALGORITHM IN AN INSTRUMENTATION PACKAGE THAT WOULD ENABLE AUTOMATIC DEFECT DETECTION TO BE ACHIEVED. A COMPREHENSIVE DATA BASE OF EDDY CURRENT SIGNALS COLLECTED UNDER A VARIETY OF CONDITIONS WILL BE USED IN THE PHASE I RESEARCH. THESE SIGNALS WILL BE ANALYZED USING A VARIETY OF SIGNAL PROCESSING AND STATISTICAL TECHNIQUES TO DETERMINE AN OPTIMUM DEFECT DETECTION STRATEGY.

* information listed above is at the time of submission.

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