{"version":"1.0","provider_name":"Cantrol","provider_url":"https:\/\/cantrol.ca\/es","author_name":"Cantrol","author_url":"https:\/\/cantrol.ca\/es\/author\/modir-froshgah\/","title":"Forced Resonance Frequency Device","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"fnvfChVMy1\"><a href=\"https:\/\/cantrol.ca\/es\/producto\/forced-resonance-frequency-device\/\">Forced Resonance Frequency Device<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/cantrol.ca\/es\/producto\/forced-resonance-frequency-device\/embed\/#?secret=fnvfChVMy1\" width=\"600\" height=\"338\" title=\"&#8220;Forced Resonance Frequency Device&#8221; &#8212; Cantrol\" data-secret=\"fnvfChVMy1\" 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:\/\/cantrol.ca\/wp-includes\/js\/wp-embed.min.js\n<\/script>","thumbnail_url":"https:\/\/cantrol.ca\/wp-content\/uploads\/2025\/10\/Forced-Resonance-Frequency-Device.jpg","thumbnail_width":1181,"thumbnail_height":1181,"description":"Forced Resonance Frequency Device This device utilizes various frequency waves to determine the resonance frequency of concrete by analyzing its response. It can measure transverse, longitudinal, and torsional resonance frequencies. The Forced Vibration method is used to apply an impact to concrete samples and obtain their dynamic modulus. The resonance frequency measurement, according to ASTM [&hellip;]"}