{"id":88014,"date":"2015-05-13T03:00:00","date_gmt":"2015-05-13T00:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=4dbd27739a2947be4fd0379b4d4ff921"},"modified":"2015-05-13T03:00:00","modified_gmt":"2015-05-13T00:00:00","slug":"an-innovative-experiment-on-superconductivity-based-on-video-analysis-and-non-expensive-dataacquisition","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=88014","title":{"rendered":"An innovative experiment on superconductivity, based on video analysis and non-expensive data\r\nacquisition"},"content":{"rendered":"<p>In this paper we present a new experiment on superconductivity, designed for university<br \/>\nundergraduate students, based on the high-speed video analysis of a magnet falling through a ceramic<br \/>\nsuperconducting cylinder ( T c\u00a0=\u00a0110 K). The use of an Atwood\u2019s machine allows us to vary the<br \/>\nmagnet\u2019s speed and acceleration during its interaction with the superconductor. In this way, we<br \/>\nhighlight the existence of two interaction regimes: for low crossing energy, the magnet is levitated<br \/>\nby the superconductor after a transient oscillatory damping; for higher crossing energy, the magnet<br \/>\npasses through the superconducting cylinder. The use of a commercial-grade high speed imaging<br \/>\nsystem, together with video analysis performed using the Tracker software, allows us to attain a<br \/>\ngood precision in space and time measurements. Four sensing coils, mounted inside and outside the<br \/>\nsuperconducting cylinder, allow us to study the magnetic flux variations in connection with the<br \/>\nmagnet&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this paper we present a new experiment on superconductivity, designed for university<br \/>\nundergraduate students, based on the high-speed video analysis of a magnet falling through a ceramic<br \/>\nsuperconducting cylinder ( T c\u00a0=\u00a0110 K). The use of an Atwo&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-88014","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/88014","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=88014"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/88014\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=88014"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=88014"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=88014"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}