Reducing the Lift-Off Effect on Permeability Measurement for Magnetic Plates From Multifrequency Induction Data
Lift-off variation causes errors in eddy current measurement of nonmagnetic plates as well as magnetic plates. For nonmagnetic plates, previous work has been carried out to address the issue. In this paper, we follow a similar strategy, but try to reduce the lift-off effect on another index-zero-cro...
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Veröffentlicht in: | IEEE transactions on instrumentation and measurement 2018-01, Vol.67 (1), p.167-174 |
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creator | Mingyang Lu Wenqian Zhu Liyuan Yin Peyton, Anthony J. Wuliang Yin Zhigang Qu |
description | Lift-off variation causes errors in eddy current measurement of nonmagnetic plates as well as magnetic plates. For nonmagnetic plates, previous work has been carried out to address the issue. In this paper, we follow a similar strategy, but try to reduce the lift-off effect on another index-zero-crossing frequency for magnetic plates. This modified index, termed as the compensated zero-crossing frequency, can be obtained from the measured multifrequency inductance spectral data using the algorithm we developed in this paper. Since the zero-crossing frequency can be compensated, the permeability of magnetic plates can finally be predicted by deriving the relation between the permeability and zero-crossing frequency from Dodd and Deeds method. We have derived the method through mathematical manipulation and verified it by both simulation and experimental data. The permeability error caused by liftoff can be reduced within 7.5%. |
doi_str_mv | 10.1109/TIM.2017.2728338 |
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For nonmagnetic plates, previous work has been carried out to address the issue. In this paper, we follow a similar strategy, but try to reduce the lift-off effect on another index-zero-crossing frequency for magnetic plates. This modified index, termed as the compensated zero-crossing frequency, can be obtained from the measured multifrequency inductance spectral data using the algorithm we developed in this paper. Since the zero-crossing frequency can be compensated, the permeability of magnetic plates can finally be predicted by deriving the relation between the permeability and zero-crossing frequency from Dodd and Deeds method. We have derived the method through mathematical manipulation and verified it by both simulation and experimental data. The permeability error caused by liftoff can be reduced within 7.5%.</description><identifier>ISSN: 0018-9456</identifier><identifier>EISSN: 1557-9662</identifier><identifier>DOI: 10.1109/TIM.2017.2728338</identifier><identifier>CODEN: IEIMAO</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Algorithms ; Computer simulation ; Eddy current testing ; Eddy currents ; Frequency measurement ; Impedance ; Inductance ; Lift ; lift-off variation ; Liftoff ; Magnetic induction ; Magnetic permeability ; magnetic plate ; new compensation algorithm ; Permeability ; Permeability measurement ; Plates</subject><ispartof>IEEE transactions on instrumentation and measurement, 2018-01, Vol.67 (1), p.167-174</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c291t-a703d6dc4a5d8da050b99edf05a888847ef076e2176e02c5b8cb6eeec9a7dd243</citedby><cites>FETCH-LOGICAL-c291t-a703d6dc4a5d8da050b99edf05a888847ef076e2176e02c5b8cb6eeec9a7dd243</cites><orcidid>0000-0001-5927-3052</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/8081835$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>315,782,786,798,27933,27934,54767</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/8081835$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Mingyang Lu</creatorcontrib><creatorcontrib>Wenqian Zhu</creatorcontrib><creatorcontrib>Liyuan Yin</creatorcontrib><creatorcontrib>Peyton, Anthony J.</creatorcontrib><creatorcontrib>Wuliang Yin</creatorcontrib><creatorcontrib>Zhigang Qu</creatorcontrib><title>Reducing the Lift-Off Effect on Permeability Measurement for Magnetic Plates From Multifrequency Induction Data</title><title>IEEE transactions on instrumentation and measurement</title><addtitle>TIM</addtitle><description>Lift-off variation causes errors in eddy current measurement of nonmagnetic plates as well as magnetic plates. For nonmagnetic plates, previous work has been carried out to address the issue. In this paper, we follow a similar strategy, but try to reduce the lift-off effect on another index-zero-crossing frequency for magnetic plates. This modified index, termed as the compensated zero-crossing frequency, can be obtained from the measured multifrequency inductance spectral data using the algorithm we developed in this paper. Since the zero-crossing frequency can be compensated, the permeability of magnetic plates can finally be predicted by deriving the relation between the permeability and zero-crossing frequency from Dodd and Deeds method. We have derived the method through mathematical manipulation and verified it by both simulation and experimental data. The permeability error caused by liftoff can be reduced within 7.5%.</description><subject>Algorithms</subject><subject>Computer simulation</subject><subject>Eddy current testing</subject><subject>Eddy currents</subject><subject>Frequency measurement</subject><subject>Impedance</subject><subject>Inductance</subject><subject>Lift</subject><subject>lift-off variation</subject><subject>Liftoff</subject><subject>Magnetic induction</subject><subject>Magnetic permeability</subject><subject>magnetic plate</subject><subject>new compensation algorithm</subject><subject>Permeability</subject><subject>Permeability measurement</subject><subject>Plates</subject><issn>0018-9456</issn><issn>1557-9662</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kL1PwzAQxS0EEqWwI7FYYk6xnTi2R1QoVGrUCpU5cpxzcZWP4jhD_3tcteKGu-W9e3c_hB4pmVFK1Mt2WcwYoWLGBJNpKq_QhHIuEpXn7BpNCKEyURnPb9HdMOwJISLPxAT1X1CPxnU7HH4Ar5wNydpa_G4tmID7Dm_At6Ar17hwxAXoYfTQQhew7T0u9K6D4AzeNDrAgBe-b3ExNsFZD78jdOaIl10MCC6uetNB36Mbq5sBHi5zir4X79v5Z7Jafyznr6vEMEVDogVJ67w2mea1rDXhpFIKaku4lrEyATY-AIzGRpjhlTRVDgBGaVHXLEun6Pm89-D7eMgQyn0_-i5GlowxmmZKcRpV5Kwyvh8GD7Y8eNdqfywpKU9Yy4i1PGEtL1ij5elscTHuXy6JpDLl6R9Bg3Tx</recordid><startdate>201801</startdate><enddate>201801</enddate><creator>Mingyang Lu</creator><creator>Wenqian Zhu</creator><creator>Liyuan Yin</creator><creator>Peyton, Anthony J.</creator><creator>Wuliang Yin</creator><creator>Zhigang Qu</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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For nonmagnetic plates, previous work has been carried out to address the issue. In this paper, we follow a similar strategy, but try to reduce the lift-off effect on another index-zero-crossing frequency for magnetic plates. This modified index, termed as the compensated zero-crossing frequency, can be obtained from the measured multifrequency inductance spectral data using the algorithm we developed in this paper. Since the zero-crossing frequency can be compensated, the permeability of magnetic plates can finally be predicted by deriving the relation between the permeability and zero-crossing frequency from Dodd and Deeds method. We have derived the method through mathematical manipulation and verified it by both simulation and experimental data. 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subjects | Algorithms Computer simulation Eddy current testing Eddy currents Frequency measurement Impedance Inductance Lift lift-off variation Liftoff Magnetic induction Magnetic permeability magnetic plate new compensation algorithm Permeability Permeability measurement Plates |
title | Reducing the Lift-Off Effect on Permeability Measurement for Magnetic Plates From Multifrequency Induction Data |
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