Location

La Jolla, CA

Start Date

1-1-1987 12:00 AM

Description

This paper updates several techniques developed for the Retirement For Cause (RFC) Nondestructive Evaluation (NDE) Inspection System eddy current inspection module. Techniques to be discussed include: (1) Scallop Centering — development of an automatic scallop centering routine makes scallop inspections reliable.; (2) Soft Survey Mode — improvements have been made for fast peak detection.; (3) Method 2 Select Mode — a fine flaw detection technique based on the acquired waveform.; (4) Antirotation Window Inspection — a frequency select mode has been established for detecting flaws in antirotation windows.; (5) Scaling of Flaw Depth — a scaling factor has been developed, based on Phase I Reliability Test data, which converts flaw signal amplitude into estimated flaw depth.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

6A

Chapter

Chapter 4: Image Analysis, Signal Processing and AI

Section

Image Analysis and Signal Processing

Pages

839-848

DOI

10.1007/978-1-4613-1893-4_96

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

An Update on Automatic Positioning, Inspection, and Signal Processing Techniques in the RFC/NDE Inspection System

La Jolla, CA

This paper updates several techniques developed for the Retirement For Cause (RFC) Nondestructive Evaluation (NDE) Inspection System eddy current inspection module. Techniques to be discussed include: (1) Scallop Centering — development of an automatic scallop centering routine makes scallop inspections reliable.; (2) Soft Survey Mode — improvements have been made for fast peak detection.; (3) Method 2 Select Mode — a fine flaw detection technique based on the acquired waveform.; (4) Antirotation Window Inspection — a frequency select mode has been established for detecting flaws in antirotation windows.; (5) Scaling of Flaw Depth — a scaling factor has been developed, based on Phase I Reliability Test data, which converts flaw signal amplitude into estimated flaw depth.