{"version":"1.0","provider_name":"CETEST USA","provider_url":"https:\/\/www.cetestgroup.com\/us","author_name":"cetest","author_url":"https:\/\/www.cetestgroup.com\/us\/author\/cetest\/","title":"Pure annoying tones during braking - CETEST USA","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"4QAEoiFVQO\"><a href=\"https:\/\/www.cetestgroup.com\/us\/case-study\/pure-annoying-tones-during-braking\/\">Pure annoying tones during braking<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.cetestgroup.com\/us\/case-study\/pure-annoying-tones-during-braking\/embed\/#?secret=4QAEoiFVQO\" width=\"600\" height=\"338\" title=\"&#8220;Pure annoying tones during braking&#8221; &#8212; CETEST USA\" data-secret=\"4QAEoiFVQO\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\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.cetestgroup.com\/us\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/www.cetestgroup.com\/us\/wp-content\/uploads\/sites\/2\/2017\/12\/cetest-case-study5-intro.jpg","thumbnail_width":1,"thumbnail_height":1,"description":"PROBLEM: An annoying noise (a pure tone) is produced when braking. During the braking sequence, the brake resistor cables are subject to acoustic and electric phenomena derived from the magnetostriction effect. In this case study, there was a resonance effect that amplified the acoustic signal."}