{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T09:11:32Z","timestamp":1771924292793,"version":"3.50.1"},"reference-count":22,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2021,6,29]],"date-time":"2021-06-29T00:00:00Z","timestamp":1624924800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001602","name":"Science Foundation Ireland","doi-asserted-by":"publisher","award":["15\/CDA\/3598"],"award-info":[{"award-number":["15\/CDA\/3598"]}],"id":[{"id":"10.13039\/501100001602","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The following presents a comparison of an extrinsic Fabry\u2013Perot interferometer (EFPI)-based temperature sensor, constructed using a novel diaphragm manufacturing technique, with a reference all-glass EFPI temperature sensor. The novel diaphragm was manufactured using polyvinyl alcohol (PVA). The novel sensor fabrication involved fusing a single-mode fibre (SMF) to a length of fused quartz capillary, which has an inner diameter of 132 \u03bcm and a 220 \u03bcm outer diameter. The capillary was subsequently polished until the distal face of the capillary extended approximately 60 \u03bcm beyond that of the single mode fibre. Upon completion of polishing, the assembly is immersed in a solution of PVA. Controlled extraction resulted in creation of a thin diaphragm while simultaneously applying a protective coating to the fusion point of the SMF and capillary. The EFPI sensor is subsequently sealed in a second fluid-filled capillary, thereby creating a novel temperature sensor structure. Both temperature sensors were placed in a thermogravimetric analyser and heated from an indicated 30 \u00b0C to 100 \u00b0C to qualitatively compare sensitivities. Initial results indicated that the novel manufacturing technique both expedited production and produces a more sensitive sensor when compared to an all-glass construction.<\/jats:p>","DOI":"10.3390\/s21134445","type":"journal-article","created":{"date-parts":[[2021,6,29]],"date-time":"2021-06-29T22:39:43Z","timestamp":1625006383000},"page":"4445","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Fabrication and Qualitative Analysis of an Optical Fibre EFPI-Based Temperature Sensor"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3914-1356","authenticated-orcid":false,"given":"Fintan","family":"McGuinness","sequence":"first","affiliation":[{"name":"Department of Electronic and Computer Engineering (ECE), University of Limerick, V94 T9PX Limerick, Ireland"}]},{"given":"Aidan","family":"Cloonan","sequence":"additional","affiliation":[{"name":"Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland"}]},{"given":"Mohamed","family":"Oubaha","sequence":"additional","affiliation":[{"name":"Centre for Research in Engineering Surface Technology (CREST), Technological University Dublin, D08 CKP1 Dublin, Ireland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2009-9709","authenticated-orcid":false,"given":"Dinesh Babu","family":"Duraibabu","sequence":"additional","affiliation":[{"name":"Centre for Robotics and Intelligent Systems (CRIS), University of Limerick, V94 T9PX Limerick, Ireland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8236-2459","authenticated-orcid":false,"given":"M. Mahmood","family":"Ali","sequence":"additional","affiliation":[{"name":"Department of Electronic and Computer Engineering (ECE), University of Limerick, V94 T9PX Limerick, Ireland"}]},{"given":"Gerald","family":"Kilkelly","sequence":"additional","affiliation":[{"name":"Bernal Institute, University of Limerick, V94 T9PX Limerick, Ireland"}]},{"given":"Emma","family":"Tobin","sequence":"additional","affiliation":[{"name":"Department of Electronic and Computer Engineering (ECE), University of Limerick, V94 T9PX Limerick, Ireland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2448-4428","authenticated-orcid":false,"given":"Gabriel","family":"Leen","sequence":"additional","affiliation":[{"name":"Department of Electronic and Computer Engineering (ECE), University of Limerick, V94 T9PX Limerick, Ireland"}]}],"member":"1968","published-online":{"date-parts":[[2021,6,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"183","DOI":"10.1002\/hbm.10039","article-title":"Non-invasive assessment of language lateralization by transcranial near infrared optical topography and functional MRI","volume":"16","author":"Kennan","year":"2002","journal-title":"Hum. 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