{"id":3912,"date":"2026-04-27T18:01:26","date_gmt":"2026-04-27T16:01:26","guid":{"rendered":"http:\/\/polysense.poliba.it\/?p=3912"},"modified":"2026-06-04T16:14:21","modified_gmt":"2026-06-04T14:14:21","slug":"new-publication-on-sensors-and-actuators-b-chemical-journal-6","status":"publish","type":"post","link":"https:\/\/polysense.poliba.it\/index.php\/2026\/04\/27\/new-publication-on-sensors-and-actuators-b-chemical-journal-6\/","title":{"rendered":"New Publication on Sensors and Actuators B Chemical Journal"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The PolySense and Polysense Innovations teams have just published&nbsp; a new article on Sensors and Actuators B Chemical Journal (IF 7.7) reporting on a dual-spectral (QEPAS-LITES) multi-gas detection system based on a single customized quartz tuning fork (QTF). By applying second-harmonic (<em>2\u202ff<\/em>) wavelength modulation at 1368.6\u202fnm and 1653.7\u202fnm, the fundamental and first-overtone resonance modes of the QTF are excited concurrently, enabling intrinsic frequency-domain separation and parallel demodulation of photoacoustic and photothermal signals.&nbsp; <br>This streamlined architecture enables truly simultaneous monitoring of percent-level H<sub>2<\/sub>O and ppm-level CH<sub>4<\/sub>, effectively overcoming the dynamic-range limitations of standard multi-gas sensing. Excellent linearity is obtained for both species (R\u00b2 = 0.9999 for H\u2082O and 0.998 for CH\u2084), with minimum detection limits of approximately 30\u202fppm and 660 ppb, respectively. Allan-Werle deviation analysis confirms stable long-term operation for both detection channels. By overcoming the dynamic-range and saturation limitations of conventional multi-gas sensors, the proposed dual-mode approach provides a robust and scalable platform for wide-dynamic-range gas sensing in applications including atmospheric greenhouse gas monitoring, industrial emission analysis, and complex open-path environments. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">   The following link provides access to the article:   <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/polysense.poliba.it\/wp-content\/uploads\/2026\/04\/1-s2.0-S0925400526005794-main.pdf\">http:\/\/polysense.poliba.it\/wp-content\/uploads\/2026\/04\/1-s2.0-S0925400526005794-main.pdf<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"1024\" height=\"783\" src=\"https:\/\/polysense.poliba.it\/wp-content\/uploads\/2026\/04\/dual-QTF-remote-1024x783.jpg\" alt=\"\" class=\"wp-image-3907\" srcset=\"https:\/\/polysense.poliba.it\/wp-content\/uploads\/2026\/04\/dual-QTF-remote-1024x783.jpg 1024w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2026\/04\/dual-QTF-remote-300x229.jpg 300w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2026\/04\/dual-QTF-remote-768x587.jpg 768w, https:\/\/polysense.poliba.it\/wp-content\/uploads\/2026\/04\/dual-QTF-remote.jpg 1292w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The PolySense and Polysense Innovations teams have just published&nbsp; a new article on Sensors and Actuators B Chemical Journal (IF 7.7) reporting on a dual-spectral (QEPAS-LITES) multi-gas detection system based on a single customized quartz tuning fork (QTF). By applying second-harmonic (2\u202ff) wavelength modulation at 1368.6\u202fnm and 1653.7\u202fnm, the fundamental and first-overtone resonance modes of <a href=\"https:\/\/polysense.poliba.it\/index.php\/2026\/04\/27\/new-publication-on-sensors-and-actuators-b-chemical-journal-6\/\" rel=\"nofollow\"><span class=\"sr-only\">Leggi di pi\u00f9New Publication on Sensors and Actuators B Chemical Journal<\/span>[&hellip;]<\/a><\/p>\n","protected":false},"author":2,"featured_media":425,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3912","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-senza-categoria"],"_links":{"self":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts\/3912","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/comments?post=3912"}],"version-history":[{"count":2,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts\/3912\/revisions"}],"predecessor-version":[{"id":4008,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/posts\/3912\/revisions\/4008"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/media\/425"}],"wp:attachment":[{"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/media?parent=3912"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/categories?post=3912"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/polysense.poliba.it\/index.php\/wp-json\/wp\/v2\/tags?post=3912"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}