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

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1987
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Ko, Ray
Hoppe, Wally
Stubbs, David
Birx, Donald
Olding, Bob
Williams, Gary
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Review of Progress in Quantitative Nondestructive Evaluation
Center for Nondestructive Evaluation

Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.

This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.

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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.

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Thu Jan 01 00:00:00 UTC 1987