{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T15:56:58Z","timestamp":1777564618472,"version":"3.51.4"},"reference-count":31,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2023,3,22]],"date-time":"2023-03-22T00:00:00Z","timestamp":1679443200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["UIDB\/00667\/2020"],"award-info":[{"award-number":["UIDB\/00667\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["UIDP\/00667\/2020 (UNIDEMI)"],"award-info":[{"award-number":["UIDP\/00667\/2020 (UNIDEMI)"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["UIDB\/50008\/2020"],"award-info":[{"award-number":["UIDB\/50008\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Fundo Europeu de Desenvolvimento Regional (FEDER), Programa Operacional Regional de Lisboa (Lisb@2020 and Portugal2020)","award":["UIDB\/00667\/2020"],"award-info":[{"award-number":["UIDB\/00667\/2020"]}]},{"name":"Fundo Europeu de Desenvolvimento Regional (FEDER), Programa Operacional Regional de Lisboa (Lisb@2020 and Portugal2020)","award":["UIDP\/00667\/2020 (UNIDEMI)"],"award-info":[{"award-number":["UIDP\/00667\/2020 (UNIDEMI)"]}]},{"name":"Fundo Europeu de Desenvolvimento Regional (FEDER), Programa Operacional Regional de Lisboa (Lisb@2020 and Portugal2020)","award":["UIDB\/50008\/2020"],"award-info":[{"award-number":["UIDB\/50008\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This paper presents an automated Non-Destructive Testing (NDT) system for the in-service inspection of orbital welds on tubular components operating at temperatures as high as 200 \u00b0C. The combination of two different NDT methods and respective inspection systems is here proposed to cover the detection of all potential defective weld conditions. The proposed NDT system combines ultrasounds and Eddy current techniques with dedicated approaches for dealing with high temperature conditions. Phased array ultrasound was employed, searching for volumetric defects within the weld bead volume while Eddy currents were used to look for surface and sub-surface cracks. The results from the phased array ultrasound results showed the effectiveness of the cooling mechanisms and that temperature effects on sound attenuation can be easily compensated for up to 200 \u00b0C. The Eddy current results showed almost no influence when temperatures were raised up to 300 \u00b0C.<\/jats:p>","DOI":"10.3390\/s23063348","type":"journal-article","created":{"date-parts":[[2023,3,22]],"date-time":"2023-03-22T07:46:43Z","timestamp":1679471203000},"page":"3348","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":41,"title":["Non-Destructive Inspection of High Temperature Piping Combining Ultrasound and Eddy Current Testing"],"prefix":"10.3390","volume":"23","author":[{"given":"David","family":"Santos","sequence":"first","affiliation":[{"name":"ISQ\u2014Instituto de Soldadura e Qualidade, 2740-120 Porto Salvo, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9352-5196","authenticated-orcid":false,"given":"Miguel A.","family":"Machado","sequence":"additional","affiliation":[{"name":"UNIDEMI, Department of Mechanical and Industrial Engineering, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal"},{"name":"Laborat\u00f3rio Associado de Sistemas Inteligentes, LASI, 4800-058 Guimar\u00e3es, Portugal"}]},{"given":"Jo\u00e3o","family":"Monteiro","sequence":"additional","affiliation":[{"name":"Bosch Termotecnologia S.A., 1800-220 Lisboa, Portugal"}]},{"given":"Jos\u00e9 P.","family":"Sousa","sequence":"additional","affiliation":[{"name":"ISQ\u2014Instituto de Soldadura e Qualidade, 2740-120 Porto Salvo, Portugal"}]},{"given":"Carla S.","family":"Proen\u00e7a","sequence":"additional","affiliation":[{"name":"ISQ\u2014Instituto de Soldadura e Qualidade, 2740-120 Porto Salvo, Portugal"}]},{"given":"Fernando S.","family":"Crivellaro","sequence":"additional","affiliation":[{"name":"Departament of Physics, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8928-510X","authenticated-orcid":false,"given":"Lu\u00eds S.","family":"Rosado","sequence":"additional","affiliation":[{"name":"Instituto de Telecomunica\u00e7\u00f5es, 1049-001 Lisbon, Portugal"},{"name":"Instituto Superior T\u00e9cnico, Universidade de Lisboa,1049-001 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9072-5010","authenticated-orcid":false,"given":"Telmo G.","family":"Santos","sequence":"additional","affiliation":[{"name":"UNIDEMI, Department of Mechanical and Industrial Engineering, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal"},{"name":"Laborat\u00f3rio Associado de Sistemas Inteligentes, LASI, 4800-058 Guimar\u00e3es, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2023,3,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Ferreira, P.M., Machado, M.A., Carvalho, M.S., and Vidal, C. 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