Multiple-element eddy current probes for enhanced inspection

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Materials Evaluation; (United States)

OSTI ID:6457454

Clark, Jr, W G ^[1]

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1. Westinghouse Science and Technology Center, Pittsburgh, PA (United States)

Eddy current inspection methods are widely used for the nondestructive evaluation (NDE) of tubular products. Specifically, the sensors and instrumentation are designed to detect and characterize changes in a material's electrical and magnetic properties produced by the presence of discontinuities. A recent major enhancement in eddy current inspection technology has been the development of computer interfacing for data collection, analysis, and display. This breakthrough has led to multiple-frequency testing, eddy current imaging, and automated data interpretation systems that significantly enhance both capabilities and reliability of the eddy current inspection. In addition to the clear advantages in data processing, computer interfacing also permits the design and creation of unique sensors that further enhance eddy current inspection capabilities. Perhaps the most promising area of computer interactive probe design is multiple element sensors. Westinghouse engineers and scientists have pioneered this area of probe development. This paper describes four unique probes that illustrate the advantages of computer interactive multiple element sensors for additional eddy current inspection options.

• OSTI ID: 6457454
• Journal Information: Materials Evaluation; (United States), Journal Name: Materials Evaluation; (United States) Vol. 51:7; ISSN MAEVAD; ISSN 0025-5327
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420500* -- Engineering-- Materials Testing
COMPUTER OUTPUT DEVICES
COMPUTER-GRAPHICS DEVICES
COMPUTERS
DATA ACQUISITION SYSTEMS
DATA ANALYSIS
DATA PROCESSING
DESIGN
DISPLAY DEVICES
EDDY CURRENT TESTING
ELECTROMAGNETIC TESTING
MATERIALS TESTING
NONDESTRUCTIVE TESTING
PROBES
PROCESSING
RELIABILITY
TESTING