Location

Seattle, WA

Start Date

1-1-1996 12:00 AM

Description

As the nuclear yard ages, the control of steam generator tubes (SGT) must deal with new problems. In fact new defects appear, especially in the area of the tube sheet, of the tube support or at the U-bend area. Eddy current testing using Rotating Probe Coil (absolute mode) gives a better resolution. These measurements allow smaller defects to be detected along different orientations, especially defects along the circumference in the rolling transition. Signals collected during the exploration of the tube internal wall with this coil contain the useful information which is represented in the form of a cartography (or image) for each of the signal complex components.

Volume

15A

Chapter

Chapter 3: Signal Processing and Image Analysis

Section

Image Analysis

Pages

829-836

DOI

10.1007/978-1-4613-0383-1_108

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Edge Detection on Eddy Current Image to Increase Defect Characterization

Seattle, WA

As the nuclear yard ages, the control of steam generator tubes (SGT) must deal with new problems. In fact new defects appear, especially in the area of the tube sheet, of the tube support or at the U-bend area. Eddy current testing using Rotating Probe Coil (absolute mode) gives a better resolution. These measurements allow smaller defects to be detected along different orientations, especially defects along the circumference in the rolling transition. Signals collected during the exploration of the tube internal wall with this coil contain the useful information which is represented in the form of a cartography (or image) for each of the signal complex components.