{"id":1447,"date":"2025-10-14T17:31:02","date_gmt":"2025-10-14T17:31:02","guid":{"rendered":"https:\/\/www.mediainteractionlab.eu\/?page_id=1447"},"modified":"2025-10-15T05:02:29","modified_gmt":"2025-10-15T05:02:29","slug":"embroidering-resonant-circuits-for-inductive-pressure-sensing","status":"publish","type":"page","link":"https:\/\/www.mediainteractionlab.eu\/?page_id=1447","title":{"rendered":"InductiveThread"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Embroidering Resonant Circuits for Inductive Pressure Sensing<\/h2>\n\n\n\n<p>In this UIST paper, we present a novel method for&nbsp;<strong>embroidering fully soft resonant LC circuits<\/strong>&nbsp;to enable&nbsp;<strong>high-resolution inductive pressure sensing directly on textile substrates<\/strong>. Using a single continuous enameled wire, we integrate both the&nbsp;<strong>coil and the capacitor<\/strong>&nbsp;into the fabric through precise embroidery, forming a compact LC circuit without the need for external components. This resonant structure is combined with a&nbsp;<strong>ferromagnetic top layer<\/strong>&nbsp;and a&nbsp;<strong>soft, compressible foam<\/strong>, translating mechanical deformation into&nbsp;<strong>shifts in resonance frequency<\/strong>. The approach maintains the&nbsp;<strong>flexibility, softness, and washability<\/strong>&nbsp;of the base textile while adding robust sensing capabilities.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Embroidering Resonant Circuits for Inductive Pressure Sensing (UIST 2025)\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/AngLOEUrgMY?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Our material exploration and fabrication study systematically evaluate embroidered geometries, conductive and ferromagnetic yarns, and foam types to optimize sensing performance. Among the tested materials,&nbsp;<strong>stainless-steel coated polyester yarn (Bart-Francis 3721)<\/strong>&nbsp;exhibited the strongest ferromagnetic response, resulting in the largest frequency shifts under pressure. Softer foams produced&nbsp;<strong>higher sensitivity<\/strong>, with values up to&nbsp;<strong>\u20131879 Hz\/N<\/strong>, while stiffer foams reduced hysteresis and improved repeatability. Across 100 actuation cycles, the sensors showed&nbsp;<strong>high stability and minimal drift<\/strong>, demonstrating their suitability for long-term use. The&nbsp;<strong>resonant frequency peak around 2.7 MHz<\/strong>&nbsp;was clearly identifiable, confirming the robustness of the embroidered LC design.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2282\" height=\"1224\" src=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-19.35.38.png\" alt=\"\" class=\"wp-image-1454\" srcset=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-19.35.38.png 2282w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-19.35.38-300x161.png 300w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-19.35.38-768x412.png 768w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-19.35.38-1536x824.png 1536w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-19.35.38-2048x1098.png 2048w\" sizes=\"auto, (max-width: 2282px) 100vw, 2282px\" \/><\/figure>\n\n\n\n<p>We illustrate the versatility of our sensing approach through three interactive applications: a&nbsp;<strong>smart pillow<\/strong> (A), which captures real-time deformation and maps it to a 3D digital twin in Unity; an&nbsp;<strong>interactive yoga mat<\/strong> (B), capable of detecting subtle weight shifts during standing or movement; and a&nbsp;<strong>chair that senses leaning direction<\/strong> (C), showing that the system can be embedded without adding bulk or altering the textile\u2019s feel.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1178\" height=\"868\" src=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Embroidering-Resonant-Circuits-for-Inductive-Pressure-Sensing-1.jpg\" alt=\"\" class=\"wp-image-1455\" srcset=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Embroidering-Resonant-Circuits-for-Inductive-Pressure-Sensing-1.jpg 1178w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Embroidering-Resonant-Circuits-for-Inductive-Pressure-Sensing-1-300x221.jpg 300w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Embroidering-Resonant-Circuits-for-Inductive-Pressure-Sensing-1-768x566.jpg 768w\" sizes=\"auto, (max-width: 1178px) 100vw, 1178px\" \/><\/figure>\n\n\n\n<p>Overall, this work introduces a new sensing modality for&nbsp;<strong>e-textiles<\/strong>&nbsp;that combines&nbsp;<strong>high performance, durability, and seamless integration<\/strong>. By leveraging&nbsp;<strong>embroidery as both a structural and electrical fabrication method<\/strong>, our technique opens the door to next-generation&nbsp;<strong>wearable interfaces, smart furniture, and textile-based spatial interaction systems<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:38% auto\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/raw.githubusercontent.com\/Media-Interaction-Lab\/presentations\/main\/2025-09-12%20UIST.pdf\"><img loading=\"lazy\" decoding=\"async\" width=\"1940\" height=\"1090\" src=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-20.19.57.png\" alt=\"\" class=\"wp-image-1466 size-full\" srcset=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-20.19.57.png 1940w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-20.19.57-300x169.png 300w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-20.19.57-768x432.png 768w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-20.19.57-1536x863.png 1536w\" sizes=\"auto, (max-width: 1940px) 100vw, 1940px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p><a href=\"https:\/\/raw.githubusercontent.com\/Media-Interaction-Lab\/presentations\/main\/2025-09-12%20UIST.pdf\">Presentation of UIST 2025<\/a>, 28. Sept.- 1. Oct. 2025, Busan, Korea.<\/p>\n<\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\" style=\"grid-template-columns:34% auto\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/raw.githubusercontent.com\/Media-Interaction-Lab\/presentations\/main\/2025-09-12%20UIST-Paper.pdf\"><img loading=\"lazy\" decoding=\"async\" width=\"1842\" height=\"1194\" src=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-19.55.13.png\" alt=\"\" class=\"wp-image-1461 size-full\" srcset=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-19.55.13.png 1842w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-19.55.13-300x194.png 300w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-19.55.13-768x498.png 768w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2025\/10\/Screenshot-2025-10-14-at-19.55.13-1536x996.png 1536w\" sizes=\"auto, (max-width: 1842px) 100vw, 1842px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Pointner A, Preindl T, Haberfellner M, Cohen N, M\u00fcnzenrieder N, and Haller M. 2025. <a href=\"https:\/\/raw.githubusercontent.com\/Media-Interaction-Lab\/presentations\/main\/2025-09-12%20UIST%20Paper.pdf\">Embroidering Resonant Circuits for Inductive Pressure Sensing<\/a>. In Proceedings of the 38th Annual ACM Symposium on User Interface Software and Technology (UIST &#8217;25). https:\/\/doi.org\/10.1145\/3746059.3747733<\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Embroidering Resonant Circuits for Inductive Pressure Sensing In this UIST paper, we present a novel method for&nbsp;embroidering fully soft resonant LC circuits&nbsp;to enable&nbsp;high-resolution inductive pressure sensing directly on textile substrates. Using a single continuous enameled wire, we integrate both the&nbsp;coil and the capacitor&nbsp;into the fabric through precise embroidery, forming a [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":1364,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1447","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.mediainteractionlab.eu\/index.php?rest_route=\/wp\/v2\/pages\/1447","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mediainteractionlab.eu\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.mediainteractionlab.eu\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.mediainteractionlab.eu\/index.php?rest_route=\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mediainteractionlab.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1447"}],"version-history":[{"count":15,"href":"https:\/\/www.mediainteractionlab.eu\/index.php?rest_route=\/wp\/v2\/pages\/1447\/revisions"}],"predecessor-version":[{"id":1711,"href":"https:\/\/www.mediainteractionlab.eu\/index.php?rest_route=\/wp\/v2\/pages\/1447\/revisions\/1711"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mediainteractionlab.eu\/index.php?rest_route=\/wp\/v2\/media\/1364"}],"wp:attachment":[{"href":"https:\/\/www.mediainteractionlab.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}