{"version":"1.0","provider_name":"Technologie Dailymag | Aimant, aimant NdFeB, assemblage magn\u00e9tique, aimant permanent, actionneur lin\u00e9aire, conteneur pour objets tranchants","provider_url":"https:\/\/www.cndailymag.com\/fr","author_name":"dimaige dimaige","author_url":"https:\/\/www.cndailymag.com\/fr\/author\/dimaige\/","title":"What is a radiation magnetic ring? - Dailymag Technology | Magnet, NdFeB Magnet, Magnetic Assembly, Permanent Magnet, Linear Actuator, Sharps Container","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"3u01NXHs4U\"><a href=\"https:\/\/www.cndailymag.com\/fr\/what-is-a-radiation-magnetic-ring\/\">What is a radiation magnetic ring?<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.cndailymag.com\/fr\/what-is-a-radiation-magnetic-ring\/embed\/#?secret=3u01NXHs4U\" width=\"600\" height=\"338\" title=\"\u00ab\u00a0What is a radiation magnetic ring?\u00a0\u00bb &#8212; Dailymag Technology | Magnet, NdFeB Magnet, Magnetic Assembly, Permanent Magnet, Linear Actuator, Sharps Container\" data-secret=\"3u01NXHs4U\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.cndailymag.com\/wp-includes\/js\/wp-embed.min.js\n<\/script>","thumbnail_url":"https:\/\/www.cndailymag.com\/wp-content\/uploads\/2026\/08\/radiation-magnet-ring.jpg","thumbnail_width":680,"thumbnail_height":454,"description":"Currently, most mainstream permanent magnet brushless motors use surface-mount or embedded magnets assembled into a ring-shaped magnetic circuit. However, this method suffers from drawbacks such as high precision requirements for magnet manufacturing, difficult assembly, poor magnetic pole transition smoothness, and significant motor noise. Furthermore, this structure requires a soft magnetic material frame to fix the..."}