{"id":1676,"date":"2026-04-05T17:49:36","date_gmt":"2026-04-05T17:49:36","guid":{"rendered":"https:\/\/www.mediainteractionlab.eu\/?page_id=1676"},"modified":"2026-04-08T05:31:06","modified_gmt":"2026-04-08T05:31:06","slug":"insense3d","status":"publish","type":"page","link":"https:\/\/www.mediainteractionlab.eu\/?page_id=1676","title":{"rendered":"InSense3D"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><strong>Designing Smart 3D-Printed Structures Leveraging Ferromagnetic Filaments for Inductive Deformation Sensing<\/strong>\u200b<\/h2>\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=\"InSense3D (CHI 2026)\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/p-NSW5wh6Xk?feature=oembed&#038;enablejsapi=1&#038;origin=https:\/\/www.mediainteractionlab.eu\" 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>In this CHI paper, we present&nbsp;<strong>InSense3D<\/strong>, a novel approach for designing&nbsp;<strong>smart 3D-printed structures<\/strong>&nbsp;that&nbsp;leverage&nbsp;<strong>inductive&nbsp;sensing<\/strong>&nbsp;to&nbsp;<strong>detect structural deformation<\/strong>&nbsp;without requiring internal wiring or electronics. By&nbsp;utilizing&nbsp;flexible lattices printed in&nbsp;<strong>TPU<\/strong>&nbsp;with&nbsp;<strong>ferromagnetic filaments<\/strong>, we create soft, deformable sensing structures that are completely&nbsp;<strong>passive<\/strong>. When the&nbsp;structure deforms under applied pressure, embedded ferromagnetic particles shift within the lattice, altering the magnetic field of&nbsp;a&nbsp;nearby coil. This results in a measurable change in&nbsp;<strong>inductance<\/strong>, enabling the system to detect and quantify structural&nbsp;deformation.\u200b<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"478\" src=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/layers.png\" alt=\"\" class=\"wp-image-1680\" srcset=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/layers.png 1024w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/layers-300x140.png 300w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/layers-768x359.png 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Apart from the sensing structures being completely passive, a key feature of the InSense3D approach is that users can easily&nbsp;<strong>swap different 3D-printed structures&nbsp;<\/strong>onto the&nbsp;<strong>same coil<\/strong>, instantly transforming them into tangible input devices tailored&nbsp;for different contexts. To design structures with different sensitivity characteristics, we systematically varied&nbsp;<strong>4 key design&nbsp;parameters&nbsp;<\/strong>affecting the core configuration, namely&nbsp;<strong>distance, offset, size, and density<\/strong>;&nbsp;and also&nbsp;explored their&nbsp;combinations to study their effect on the sensor&nbsp;behavior.<\/p>\n\n\n\n<p>To evaluate the sensing performance of our approach, we assessed the&nbsp;<strong>sensitivity<\/strong>&nbsp;and&nbsp;<strong>long-term stability&nbsp;<\/strong>of&nbsp;one of our sensor samples. We&nbsp;observed&nbsp;that the sensor achieves a&nbsp;<strong>sensitivity of 0.23%<\/strong>&nbsp;relative inductance&nbsp;change per mm of deformation, as it is incrementally deformed in steps of 0.2 mm using an automated test&nbsp;setup. We also find that the sensor&nbsp;exhibits&nbsp;<strong>minimal drift<\/strong>, with the difference between the peak inductance&nbsp;values in the first and final cycles&nbsp;remaining&nbsp;<strong>within 0.05%&nbsp;<\/strong>of the&nbsp;initial&nbsp;inductance as the sample undergoes&nbsp;<strong>10,000 compression cycles<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2667\" height=\"999\" src=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/tests.png\" alt=\"\" class=\"wp-image-1683\" srcset=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/tests.png 2667w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/tests-300x112.png 300w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/tests-768x288.png 768w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/tests-1536x575.png 1536w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/tests-2048x767.png 2048w\" sizes=\"auto, (max-width: 2667px) 100vw, 2667px\" \/><\/figure>\n\n\n\n<p>We demonstrate the versatility of our approach through&nbsp;<strong>four application categories: a<\/strong>&nbsp;<strong>smart bottle cover&nbsp;<\/strong>(A),&nbsp;which detects subtle changes in weight and deformation to estimate liquid intake in real time;&nbsp;<strong>a tabletop&nbsp;music controller&nbsp;<\/strong>(B), where tilting and pressing the structure produces different notes, enabling expressive&nbsp;interaction;&nbsp;<strong>a<\/strong>&nbsp;<strong>stretchable handheld controller&nbsp;<\/strong>(C), integrated with two coils and comprising a serpentine&nbsp;lattice structure that supports multi-dimensional interaction for applications such as gaming or sculpting; and&nbsp;<strong>a pressure-sensitive shoe sole&nbsp;<\/strong>(D), capable of mapping foot pressure during walking and generating a live&nbsp;heatmap of movement and posture.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"508\" src=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/applications.png\" alt=\"\" class=\"wp-image-1697\" srcset=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/applications.png 1024w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/applications-300x149.png 300w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/applications-768x381.png 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\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:41% auto\"><figure class=\"wp-block-media-text__media\"><a href=\"https:\/\/raw.githubusercontent.com\/Media-Interaction-Lab\/presentations\/main\/2026-04-26-CHI%20InSense3D.pdf\"><img loading=\"lazy\" decoding=\"async\" width=\"1858\" height=\"1208\" src=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/Screenshot-2026-04-07-at-20.11.52.png\" alt=\"\" class=\"wp-image-1735 size-full\" srcset=\"https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/Screenshot-2026-04-07-at-20.11.52.png 1858w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/Screenshot-2026-04-07-at-20.11.52-300x195.png 300w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/Screenshot-2026-04-07-at-20.11.52-768x499.png 768w, https:\/\/www.mediainteractionlab.eu\/wp-content\/uploads\/2026\/04\/Screenshot-2026-04-07-at-20.11.52-1536x999.png 1536w\" sizes=\"auto, (max-width: 1858px) 100vw, 1858px\" \/><\/a><\/figure><div class=\"wp-block-media-text__content\">\n<p>Bhaumik R., Garcia C., M\u00fcnzenrieder N., Haller M., Ion A., <a href=\"https:\/\/raw.githubusercontent.com\/Media-Interaction-Lab\/presentations\/main\/2026-04-26-CHI%20InSense3D.pdf\">InSense3D: Designing Smart 3D-Printed Structures Leveraging Ferromagnetic Filaments for Inductive Deformation Sensing<\/a>, In\u00a0Proceedings of the 2026 CHI Conference on Human Factors in Computing Systems Conference (CHI\u201926).<\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Designing Smart 3D-Printed Structures Leveraging Ferromagnetic Filaments for Inductive Deformation Sensing\u200b In this CHI paper, we present&nbsp;InSense3D, a novel approach for designing&nbsp;smart 3D-printed structures&nbsp;that&nbsp;leverage&nbsp;inductive&nbsp;sensing&nbsp;to&nbsp;detect structural deformation&nbsp;without requiring internal wiring or electronics. By&nbsp;utilizing&nbsp;flexible lattices printed in&nbsp;TPU&nbsp;with&nbsp;ferromagnetic filaments, we create soft, deformable sensing structures that are completely&nbsp;passive. When the&nbsp;structure deforms under applied [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":1742,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1676","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.mediainteractionlab.eu\/index.php?rest_route=\/wp\/v2\/pages\/1676","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=1676"}],"version-history":[{"count":9,"href":"https:\/\/www.mediainteractionlab.eu\/index.php?rest_route=\/wp\/v2\/pages\/1676\/revisions"}],"predecessor-version":[{"id":1739,"href":"https:\/\/www.mediainteractionlab.eu\/index.php?rest_route=\/wp\/v2\/pages\/1676\/revisions\/1739"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mediainteractionlab.eu\/index.php?rest_route=\/wp\/v2\/media\/1742"}],"wp:attachment":[{"href":"https:\/\/www.mediainteractionlab.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}