Multiparameter Methods with Pulsed Eddy Currents

dc.contributor.author Dodd, C.
dc.contributor.author Deeds, W.
dc.date 2018-02-14T02:46:39.000
dc.date.accessioned 2020-06-30T06:33:02Z
dc.date.available 2020-06-30T06:33:02Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 1987
dc.date.issued 1987
dc.description.abstract <p>Multiparameter methods have been used for a number of years to distinguish certain material properties from others that may be varying in the same eddy-current inspection. Usually the measured data are the magnitudes and phases of the eddy currents at several fixed frequencies. Alternatively, the necessary data can be obtained from pulsed eddy currents by measuring the pulse heights at various times or the times to reach various pulse heights. Such data can be used to analyze the pulse into various Fourier components, but that is time consuming and unnecessary. The raw data (for example, the pulse heights at various times) can be used as variables in polynomial approximations to the various properties in exactly the same way as has been used with the multifrequency, multiparameter method. This approach has several advantages, including simpler equipment, ability to use higher frequencies, and less modification required for different inspection problems.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/qnde/1987/allcontent/97/
dc.identifier.articleid 1217
dc.identifier.contextkey 5772888
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1987/allcontent/97
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/59071
dc.language.iso en
dc.relation.ispartofseries Review of Progress in Quantitative Nondestructive Evaluation
dc.source.bitstream archive/lib.dr.iastate.edu/qnde/1987/allcontent/97/1987_Dodd_MultiparameterMethods.pdf|||Sat Jan 15 02:36:20 UTC 2022
dc.source.uri 10.1007/978-1-4613-1893-4_97
dc.subject.disciplines Electromagnetics and Photonics
dc.subject.disciplines Signal Processing
dc.title Multiparameter Methods with Pulsed Eddy Currents
dc.type event
dc.type.genre article
dspace.entity.type Publication
relation.isSeriesOfPublication 289a28b5-887e-4ddb-8c51-a88d07ebc3f3
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