{"id":1351,"date":"2024-10-15T12:05:09","date_gmt":"2024-10-15T10:05:09","guid":{"rendered":"https:\/\/au.feri.um.si\/leoss\/?p=1351"},"modified":"2024-10-15T12:05:09","modified_gmt":"2024-10-15T10:05:09","slug":"a-short-range-quasi-distributed-strain-and-temperature-sensing-system-utilizing-a-standard-telecom-laser-diode","status":"publish","type":"post","link":"https:\/\/au.jovo.cc\/leoss\/2024\/10\/15\/a-short-range-quasi-distributed-strain-and-temperature-sensing-system-utilizing-a-standard-telecom-laser-diode\/","title":{"rendered":"A short-range quasi-distributed strain and temperature sensing system utilizing a standard telecom laser diode"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">This article presents a short-range fiber-optic quasi-distributed sensing device suitable for strain and temperature measurement. The sensing assembly consists of an <em>fs<\/em> laser inscribed reference mirror and a sensing array of equidistantly positioned mirrors. Utilization of the reference mirror and proper sensor geometry selection provides the possibility for a high-resolution spectral interrogation of the sensing array while relying on an ordinary, cost-effective distributed feedback (DFB) telecom laser diode. Beside the telecom DFB diode, the entire interrogation system includes only an additional detector, optical coupler, analog interface and a microcontroller. Measurement resolution better than 1 \u00b5<em>\u03b5<\/em> was demonstrated experimentally at a sampling rate exceeding 65 samples per second, while utilizing a sensing device with a typical length of 50\u00a0<em>mm<\/em> and spatial resolution of approximately 2\u00a0<em>mm.<\/em> To demonstrate the application potential of the proposed measuring device, a few different packages and sensor configurations were demonstrated and tested, including a system for tactile sensing applications and a short-range quasi-distributed temperature measurement probe.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Optics &amp; Laser Technology  <a href=\"https:\/\/www.sciencedirect.com\/journal\/optics-and-laser-technology\/vol\/181\/part\/PC\">Volume 181, Part C<\/a>, February 2025, 111919<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/doi.org\/10.1016\/j.optlastec.2024.111919\">https:\/\/doi.org\/10.1016\/j.optlastec.2024.111919<\/a><\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"667\" height=\"376\" data-id=\"1352\" src=\"\/leoss\/wp-content\/uploads\/sites\/2\/2024\/10\/quasidistributed-jj.jpg\" alt=\"\" class=\"wp-image-1352\" srcset=\"https:\/\/au.jovo.cc\/leoss\/wp-content\/uploads\/sites\/2\/2024\/10\/quasidistributed-jj.jpg 667w, https:\/\/au.jovo.cc\/leoss\/wp-content\/uploads\/sites\/2\/2024\/10\/quasidistributed-jj-300x169.jpg 300w\" sizes=\"auto, (max-width: 667px) 100vw, 667px\" \/><\/figure>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"<p>This article presents a short-range fiber-optic quasi-distributed sensing device suitable for strain and temperature measurement. The sensing assembly consists of an fs laser inscribed reference mirror and a sensing array of equidistantly positioned mirrors. Utilization of the reference mirror and proper sensor geometry selection provides the possibility for a high-resolution spectral interrogation of the sensing [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":1352,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,29,10,13,14,5,19,21],"tags":[],"class_list":["post-1351","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-clanki","category-distribuirani-senzorji","category-mikro-obdelava","category-opticni-vlakenski-senzorji","category-opto-elektronski","category-raziskovalno-delo","category-signal-interrogators","category-strain-sensors"],"_links":{"self":[{"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/posts\/1351","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/comments?post=1351"}],"version-history":[{"count":0,"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/posts\/1351\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/media\/1352"}],"wp:attachment":[{"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/media?parent=1351"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/categories?post=1351"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/au.jovo.cc\/leoss\/wp-json\/wp\/v2\/tags?post=1351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}