{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T17:15:09Z","timestamp":1785604509662,"version":"3.56.0"},"reference-count":15,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2017,5,5]],"date-time":"2017-05-05T00:00:00Z","timestamp":1493942400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Pulsed Remote Field Eddy Current Testing (PRFECT) attracts the attention in the testing of ferromagnetic pipes because of its continuous spectrum. This paper simulated the practical PRFECT of pipes by using ANSYS software and employed Least Squares Support Vector Regression (LSSVR) to extract the zero-crossing time to analyze the pipe thickness. As a result, a secondary peak is found in zero-crossing time when transmitter passed by a defect. The secondary peak will lead to wrong quantification and the localization of defects, especially when defects are found only at the transmitter location. Aiming to eliminate the secondary peaks, double sensing coils are set in the transition zone and Wiener deconvolution filter is applied. In the proposed method, position dependent response of the differential signals from the double sensing coils is calibrated by employing zero-mean normalization. The methods proposed in this paper are validated by analyzing the simulation signals and can improve the practicality of PRFECT of ferromagnetic pipes.<\/jats:p>","DOI":"10.3390\/s17051038","type":"journal-article","created":{"date-parts":[[2017,5,5]],"date-time":"2017-05-05T10:31:08Z","timestamp":1493980268000},"page":"1038","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["A Study of Applying Pulsed Remote Field Eddy Current in Ferromagnetic Pipes Testing"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9187-4883","authenticated-orcid":false,"given":"Qingwang","family":"Luo","sequence":"first","affiliation":[{"name":"Center for Information Geoscience, University of Electronic Science and Technology of China, Chengdu 611731, China"},{"name":"School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yibing","family":"Shi","sequence":"additional","affiliation":[{"name":"Center for Information Geoscience, University of Electronic Science and Technology of China, Chengdu 611731, China"},{"name":"School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhigang","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Zhang","sequence":"additional","affiliation":[{"name":"Center for Information Geoscience, University of Electronic Science and Technology of China, Chengdu 611731, China"},{"name":"School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yanjun","family":"Li","sequence":"additional","affiliation":[{"name":"Center for Information Geoscience, University of Electronic Science and Technology of China, Chengdu 611731, China"},{"name":"School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2017,5,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"269","DOI":"10.1115\/1.1991878","article-title":"Small diameter remote field eddy current inspection for unpiggable pipelines","volume":"27","author":"Teitsma","year":"2005","journal-title":"J. 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Eval."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"24098","DOI":"10.3390\/s141224098","article-title":"A novel high sensitivity sensor for remote field eddy current non-destructive testing based on orthogonal magnetic field","volume":"14","author":"Xu","year":"2014","journal-title":"Sensors"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"269","DOI":"10.4028\/www.scientific.net\/AMM.518.269","article-title":"Rapid defect reconstruction based on genetic algorithm and similar model in remote field eddy current non-destructive testing","volume":"1","author":"Xue","year":"2014","journal-title":"Appl. Mech. Mater."},{"key":"ref_6","unstructured":"Vasi\u0107, D., Bilas, V., and Ambru\u0161kim, C. (2002, January 25\u221227). Measurement of ferromagnetic tube wall thickness using pulsed remote field technique. 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Instrum."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/17\/5\/1038\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T18:34:46Z","timestamp":1760207686000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/17\/5\/1038"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,5,5]]},"references-count":15,"journal-issue":{"issue":"5","published-online":{"date-parts":[[2017,5]]}},"alternative-id":["s17051038"],"URL":"https:\/\/doi.org\/10.3390\/s17051038","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,5,5]]}}}