Measuring the thicknesses of nonferromagnetic metal coatings on nonferrous metal products using the eddy-current frequency method

Combinations of electroconductive nonferromagnetic coatings and electroconductive nonferromagnetic bases that are used in industry are analyzed. These are divided into five groups depending on the ratios of their electric conductivities. The scheme, design, and principles of operation of eddy-curren...

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Bibliographic Details
Published in:Russian journal of nondestructive testing 2010-12, Vol.46 (12), p.898-905
Main Author: Syasko, V. A.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Coatings
Eddy current testing
Electrical conductivity
Magnetic and Electromagnetic Methods
Materials Science
Metal coatings
Metrology
Nondestructive testing
Optimization
Structural Materials
Transducers
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Description
Summary:Combinations of electroconductive nonferromagnetic coatings and electroconductive nonferromagnetic bases that are used in industry are analyzed. These are divided into five groups depending on the ratios of their electric conductivities. The scheme, design, and principles of operation of eddy-current frequency transducers are considered. The main dependences for determining their parameters (operating frequency, diameter of the winding, sensitivity to the informative parameter, and interfering factors, etc.) are presented. Examples of measurement problems and the optimal application of this method and the achieved metrological characteristics of compact transducers are presented.
ISSN:1061-8309
1608-3385
DOI:10.1134/S1061830910120053