{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,20]],"date-time":"2026-03-20T18:27:00Z","timestamp":1774031220676,"version":"3.50.1"},"reference-count":64,"publisher":"MDPI AG","issue":"18","license":[{"start":{"date-parts":[[2019,9,11]],"date-time":"2019-09-11T00:00:00Z","timestamp":1568160000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001807","name":"Funda\u00e7\u00e3o de Amparo \u00e0 Pesquisa do Estado de S\u00e3o Paulo","doi-asserted-by":"publisher","award":["2018\/07292-0"],"award-info":[{"award-number":["2018\/07292-0"]}],"id":[{"id":"10.13039\/501100001807","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003593","name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico","doi-asserted-by":"publisher","award":["306435\/2017-9"],"award-info":[{"award-number":["306435\/2017-9"]}],"id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Innovative monitoring systems based on sensor signals have emerged in recent years in view of their potential for diagnosing machining process conditions. In this context, preliminary applications of fast-response and low-cost piezoelectric diaphragms (PZT) have recently emerged in the grinding monitoring field. However, there is a lack of application regarding the grinding of ceramic materials. Thus, this work presents an analysis of the feasibility of using the acoustic emission signals obtained through the PZT diaphragm, together with digital signal processing in the time\u2013frequency domain, in the monitoring of the surface quality of ceramic components during the surface grinding process. For comparative purpose, an acoustic emission (AE) sensor, commonly used in industry, was used as a baseline. The results obtained by the PZT diaphragm were similar to the results obtained using the AE sensor. The time\u2013frequency analysis allowed to identify irregularities throughout the monitored process.<\/jats:p>","DOI":"10.3390\/s19183913","type":"journal-article","created":{"date-parts":[[2019,9,11]],"date-time":"2019-09-11T11:26:34Z","timestamp":1568201194000},"page":"3913","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["A Time\u2013Frequency Acoustic Emission-Based Technique to Assess Workpiece Surface Quality in Ceramic Grinding with PZT Transducer"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4924-4896","authenticated-orcid":false,"given":"Martin A.","family":"Aulestia Viera","sequence":"first","affiliation":[{"name":"Department of Electrical Engineering, S\u00e3o Paulo State University\u2014UNESP, Av. Eng. Luiz Edmundo Carrijo Coube, 14-01, Bauru 17033-360, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paulo R.","family":"Aguiar","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, S\u00e3o Paulo State University\u2014UNESP, Av. Eng. Luiz Edmundo Carrijo Coube, 14-01, Bauru 17033-360, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8476-3333","authenticated-orcid":false,"given":"Pedro","family":"Oliveira Junior","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, S\u00e3o Paulo State University\u2014UNESP, Av. Eng. Luiz Edmundo Carrijo Coube, 14-01, Bauru 17033-360, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6768-1109","authenticated-orcid":false,"given":"Felipe A.","family":"Alexandre","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, S\u00e3o Paulo State University\u2014UNESP, Av. Eng. Luiz Edmundo Carrijo Coube, 14-01, Bauru 17033-360, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wenderson N.","family":"Lopes","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, S\u00e3o Paulo State University\u2014UNESP, Av. Eng. Luiz Edmundo Carrijo Coube, 14-01, Bauru 17033-360, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eduardo C.","family":"Bianchi","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, S\u00e3o Paulo State University\u2014UNESP, Av. Eng. 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Jo\u00e3o Naves de Avila 2121, Uberlandia 38408-100, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4358-9102","authenticated-orcid":false,"given":"Doriana","family":"D\u2019addona","sequence":"additional","affiliation":[{"name":"Fraunhofer Joint Laboratory of Excellence on Advanced Production Technology (Fh-J_LEAPT Naples) Department of Chemical, Material and Industrial Production Engineering, University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7271-397X","authenticated-orcid":false,"given":"Andre","family":"Andreoli","sequence":"additional","affiliation":[{"name":"Department of Electrical Engineering, S\u00e3o Paulo State University\u2014UNESP, Av. Eng. 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