{"id":100001,"date":"2026-02-15T20:30:06","date_gmt":"2026-02-15T20:30:06","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100001"},"modified":"2026-02-15T20:30:06","modified_gmt":"2026-02-15T20:30:06","slug":"accelerometer-mounting-resonance","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/vi\/calculators\/accelerometer-mounting-resonance\/","title":{"rendered":"M\u00e1y t\u00ednh c\u1ed9ng h\u01b0\u1edfng l\u1eafp \u0111\u1eb7t gia t\u1ed1c k\u1ebf"},"content":{"rendered":"\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Accelerometer Mounting Resonance Calculator\",\"description\":\"Calculate usable frequency range for different accelerometer mounting methods including stud, adhesive, magnet and probe tip.\",\"url\":\"https:\/\/vibromera.eu\/calculators\/accelerometer-mounting-resonance\/\",\"applicationCategory\":\"Engineering Calculator\",\"operatingSystem\":\"Any (Web Browser)\",\"offers\":{\"@type\":\"Offer\",\"price\":\"0\",\"priceCurrency\":\"EUR\"},\"creator\":{\"@type\":\"Organization\",\"name\":\"Vibromera\",\"url\":\"https:\/\/vibromera.eu\/\"},\"datePublished\":\"2024-01-01\",\"dateModified\":\"2025-02-14\",\"inLanguage\":\"en\",\"isAccessibleForFree\":true}\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[\n{\"@type\":\"Question\",\"name\":\"What is accelerometer mounting resonance?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The mounting resonance is the natural frequency of the combined sensor-mounting system. It is always lower than the sensor's bare resonance because the mounting adds compliance. It determines the upper usable frequency range.\"}},\n{\"@type\":\"Question\",\"name\":\"Why is the usable range only 1\/3 of the mounted resonance?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Near resonance, amplitude response rises significantly (up to 30 dB at resonance). To stay within \u00b13 dB accuracy, the rule of thumb is to use only up to 1\/3 of the mounted resonance frequency.\"}}\n]}\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[\n{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vibromera.eu\/\"},\n{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Calculators\",\"item\":\"https:\/\/vibromera.eu\/calculators\/\"},\n{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Accelerometer Mounting Resonance\",\"item\":\"https:\/\/vibromera.eu\/calculators\/accelerometer-mounting-resonance\/\"}\n]}\n<\/script>\n\n<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n\n<link rel=\"preconnect\" href=\"https:\/\/fonts.gstatic.com\" crossorigin>\n\n<link 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.vc-faq-chevron{transform:rotate(180deg)}\n.vc-faq-a{max-height:0;overflow:hidden;transition:max-height 0.35s}\n.vc-faq-item.vc-open .vc-faq-a{max-height:1200px}\n.vc-faq-a-inner{padding:14px 16px;border-top:1px solid var(--vc-border-light);font-size:14px;color:var(--vc-ink-secondary)}\n.vc-faq-a-inner p{margin:0 0 8px}.vc-faq-a-inner p:last-child{margin-bottom:0}\n.vc-faq-a-inner ul{margin:4px 0 8px 16px;padding:0}.vc-faq-a-inner li{margin-bottom:3px}\n.vc-related{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}\n.vc-related-link{display:inline-block;padding:8px 16px;font-family:var(--vc-font);font-size:13px;font-weight:600;background:var(--vc-surface-alt);color:var(--vc-ink-secondary);border:1px solid var(--vc-border);border-radius:var(--vc-radius);text-decoration:none;transition:all 0.15s}\n.vc-related-link:hover{border-color:var(--vc-accent);color:var(--vc-accent);background:var(--vc-accent-light)}\n.vc-promo{margin-top:24px;padding:20px;background:linear-gradient(135deg,var(--vc-accent-light),var(--vc-surface));border:1px solid var(--vc-border);border-radius:var(--vc-radius-lg);display:flex;align-items:center;gap:16px}\n.vc-promo-text{flex:1;font-size:14px;color:var(--vc-ink-secondary)}.vc-promo-text strong{color:var(--vc-ink)}\n.vc-promo-link{padding:8px 20px;font-size:13px;font-weight:700;color:#fff;background:var(--vc-accent);border-radius:var(--vc-radius);text-decoration:none;white-space:nowrap;transition:background 0.15s}\n.vc-promo-link:hover{background:var(--vc-accent-hover)}\n.vc-footer{text-align:center;padding:32px 16px;font-size:13px;color:var(--vc-ink-muted)}\n.vc-footer a{color:var(--vc-accent);text-decoration:none}.vc-footer a:hover{text-decoration:underline}\n.vc-footer-links{margin-top:8px;font-size:12px}.vc-footer-links a{margin:0 8px}\n@media print{.vc-section-body{max-height:none!important}.vc-faq-a{max-height:none!important}.vc-results{max-height:none!important;padding:24px!important}.vc-copy-btn,.vc-section-chevron,.vc-faq-chevron,.vc-promo{display:none!important}}\n<\/style>\n\n<div class=\"vc-calculator\" id=\"vc-accel-mounting\">\n\n<header class=\"vc-header\">\n    <p class=\"vc-header-eyebrow\">Free Engineering Tool<\/p>\n    <h1 class=\"vc-header-title\">Accelerometer Mounting Resonance Calculator<\/h1>\n    <p class=\"vc-header-subtitle\">Calculate the usable frequency range of your accelerometer based on mounting method. Compare stud, adhesive, magnet, and probe tip mounting effects on measurement bandwidth.<\/p>\n    <div class=\"vc-badges\">\n        <span class=\"vc-badge\">Stud ~30 kHz<\/span>\n        <span class=\"vc-badge\">Adhesive ~20 kHz<\/span>\n        <span class=\"vc-badge\">Magnet ~7 kHz<\/span>\n        <span class=\"vc-badge\">Probe ~2 kHz<\/span>\n    <\/div>\n<\/header>\n\n<div class=\"vc-card\">\n    <form class=\"vc-form\" id=\"vc-form\" autocomplete=\"off\">\n        <div class=\"vc-form-grid\">\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-sensor-res\">Sensor Resonant Frequency <span class=\"vc-label-hint\">(kHz, from datasheet)<\/span><\/label>\n                <input class=\"vc-input\" type=\"number\" id=\"vc-sensor-res\" inputmode=\"decimal\" step=\"any\" min=\"1\" placeholder=\"e.g. 32\" value=\"32\">\n            <\/div>\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-sensor-mass\">Sensor Mass <span class=\"vc-label-hint\">(grams)<\/span><\/label>\n                <input class=\"vc-input\" type=\"number\" id=\"vc-sensor-mass\" inputmode=\"decimal\" step=\"any\" min=\"0.1\" placeholder=\"e.g. 50\" value=\"50\">\n            <\/div>\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-mount-type\">Mounting Method<\/label>\n                <select class=\"vc-select\" id=\"vc-mount-type\">\n                    <option value=\"stud\">Stud mount (best \u2014 ~90-95% of sensor resonance)<\/option>\n                    <option value=\"adhesive\" selected>Adhesive \/ cement (~60-70% of sensor resonance)<\/option>\n                    <option value=\"magnet\">Magnet mount (~20-25% of sensor resonance)<\/option>\n                    <option value=\"probe\">Probe tip \/ hand-held (~5-8% of sensor resonance)<\/option>\n                <\/select>\n            <\/div>\n            <div class=\"vc-field\">\n                <label class=\"vc-label\" for=\"vc-accuracy\">Accuracy Target<\/label>\n                <select class=\"vc-select\" id=\"vc-accuracy\">\n                    <option value=\"0.333\" selected>\u00b13 dB (1\/3 of mounted resonance)<\/option>\n                    <option value=\"0.2\">\u00b11 dB (1\/5 of mounted resonance)<\/option>\n                    <option value=\"0.1\">\u00b10.5 dB (1\/10 of mounted resonance)<\/option>\n                <\/select>\n            <\/div>\n        <\/div>\n    <\/form>\n\n    <div class=\"vc-results\" id=\"vc-results\">\n        <div class=\"vc-results-head\">\n            <h2 class=\"vc-results-title\">Results<\/h2>\n            <button type=\"button\" class=\"vc-copy-btn\" id=\"vc-copy-btn\">\n                <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\"\/><path d=\"M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1\"\/><\/svg>\n                Copy\n            <\/button>\n        <\/div>\n        <div class=\"vc-result-grid\">\n            <div class=\"vc-rcard vc-rcard-primary\">\n                <div class=\"vc-rcard-label\">Usable Frequency Range<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-usable\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Mounted Resonance<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-mounted\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Sensor Bare Resonance<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-bare\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Resonance Reduction Factor<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-factor\">\u2014<\/div>\n            <\/div>\n            <div class=\"vc-rcard\">\n                <div class=\"vc-rcard-label\">Accuracy Band<\/div>\n                <div class=\"vc-rcard-value\" id=\"vc-r-accuracy\">\u2014<\/div>\n            <\/div>\n        <\/div>\n\n        <div class=\"vc-mount-compare\" id=\"vc-mount-compare\">\n            <div style=\"font-family:var(--vc-mono);font-size:11px;font-weight:600;letter-spacing:0.08em;text-transform:uppercase;color:var(--vc-ink-secondary);margin-bottom:12px;\">Comparison \u2014 All Mounting Methods (Usable Range)<\/div>\n            <div id=\"vc-mount-bars\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<!-- Theory -->\n<div class=\"vc-section vc-open\" id=\"vc-sec-theory\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"true\">\n        <span class=\"vc-section-toggle-text\">\n            <span class=\"vc-section-icon\">\ud83d\udcd8<\/span>\n            <span class=\"vc-section-title\">Theory &amp; Formulas<\/span>\n        <\/span>\n        <svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg>\n    <\/button>\n    <div class=\"vc-section-body\">\n        <div class=\"vc-section-inner vc-theory\">\n            <h3>Mounting Resonance Effect<\/h3>\n            <p>Every accelerometer has a resonant frequency specified for ideal (stud) mounting. When using less rigid mounting methods, the system resonance drops because the mounting adds compliance (spring effect).<\/p>\n            <div class=\"vc-formula-box\" id=\"vc-katex-1\"><\/div>\n            <p>Where <strong>k<\/strong> is the mounting reduction factor, typically:<\/p>\n\n            <h3>Mounting Methods \u2014 Typical Resonance Values<\/h3>\n            <table class=\"vc-table\">\n                <thead><tr><th>Mounting Method<\/th><th>Typical Mounted Resonance<\/th><th>Factor k<\/th><th>Usable Range (at \u00b13 dB)<\/th><\/tr><\/thead>\n                <tbody>\n                    <tr><td>Stud mount<\/td><td>28\u201332 kHz<\/td><td>0.90\u20130.95<\/td><td>~10 kHz<\/td><\/tr>\n                    <tr><td>Thin adhesive layer<\/td><td>18\u201322 kHz<\/td><td>0.60\u20130.70<\/td><td>~6\u20137 kHz<\/td><\/tr>\n                    <tr><td>Adhesive pad (thick)<\/td><td>12\u201316 kHz<\/td><td>0.40\u20130.50<\/td><td>~4\u20135 kHz<\/td><\/tr>\n                    <tr><td>Flat magnet<\/td><td>6\u20138 kHz<\/td><td>0.20\u20130.25<\/td><td>~2\u20132.5 kHz<\/td><\/tr>\n                    <tr><td>Two-pole magnet<\/td><td>3\u20135 kHz<\/td><td>0.10\u20130.15<\/td><td>~1\u20131.5 kHz<\/td><\/tr>\n                    <tr><td>Probe tip \/ hand-held<\/td><td>1.5\u20132.5 kHz<\/td><td>0.05\u20130.08<\/td><td>~0.5\u20130.8 kHz<\/td><\/tr>\n                <\/tbody>\n            <\/table>\n\n            <div class=\"vc-info-box\">\n                <p><strong>\u2139\ufe0f Rule of Thumb:<\/strong> Use only up to <strong>1\/3<\/strong> of the mounted resonance frequency for measurements within \u00b13 dB accuracy. For \u00b11 dB, use only 1\/5. For highest accuracy (\u00b10.5 dB), use only 1\/10.<\/p>\n            <\/div>\n\n            <h3>Practical Recommendations<\/h3>\n            <ul>\n                <li><strong>Route-based monitoring:<\/strong> Magnet mount is common \u2014 acceptable for frequencies up to ~2 kHz (120,000 CPM)<\/li>\n                <li><strong>Permanent monitoring:<\/strong> Always use stud mount for maximum bandwidth and repeatability<\/li>\n                <li><strong>Quick checks:<\/strong> Probe tip is okay for low-frequency measurements (1\u00d7 and 2\u00d7 on slow machines)<\/li>\n                <li><strong>Bearing analysis:<\/strong> Requires stud or thin adhesive for high-frequency envelope detection<\/li>\n            <\/ul>\n\n            <div class=\"vc-warning-box\">\n                <p style=\"margin:0;font-size:14px;color:var(--vc-ink-secondary);\"><strong>\u26a0\ufe0f Important:<\/strong> Sensor mass should be &lt;10% of the structure mass at the measurement point. Heavy sensors on lightweight structures reduce mounted resonance further and can alter the vibration being measured.<\/p>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<!-- Related -->\n<div class=\"vc-section\" id=\"vc-sec-related\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\">\n        <span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udd17<\/span><span class=\"vc-section-title\">Related Calculators<\/span><\/span>\n        <svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg>\n    <\/button>\n    <div class=\"vc-section-body\">\n        <div class=\"vc-section-inner\">\n            <div class=\"vc-related\">\n                <a class=\"vc-related-link\" href=\"\/calculators\/fft-resolution-calculator\/\">FFT Resolution Calculator<\/a>\n                <a class=\"vc-related-link\" href=\"\/calculators\/vibration-severity-chart\/\">Vibration Severity Chart<\/a>\n                <a class=\"vc-related-link\" href=\"\/calculators\/rpm-to-rads-converter\/\">RPM to rad\/s Converter<\/a>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<!-- FAQ -->\n<div class=\"vc-section\" id=\"vc-sec-faq\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\">\n        <span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\u2753<\/span><span class=\"vc-section-title\">Frequently Asked Questions<\/span><\/span>\n        <svg class=\"vc-section-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg>\n    <\/button>\n    <div class=\"vc-section-body\">\n        <div class=\"vc-section-inner\"><div class=\"vc-faq-list\" id=\"vc-faq-list\"><\/div><\/div>\n    <\/div>\n<\/div>\n\n<div class=\"vc-promo\">\n    <div class=\"vc-promo-text\"><strong>Vibromera \u2014 Portable Balancing &amp; Vibration Analysis<\/strong><br>Professional accelerometers and vibration analyzers with stud, magnet and adhesive mounting options.<\/div>\n    <a class=\"vc-promo-link\" href=\"https:\/\/vibromera.eu\/\" target=\"_blank\" rel=\"noopener\">Learn More<\/a>\n<\/div>\n\n<footer class=\"vc-footer\">\n    <p>&copy; 2024\u20132025 <a href=\"https:\/\/vibromera.eu\/\">Vibromera<\/a> \u2014 Engineering Calculators<\/p>\n    <p style=\"font-size:12px;margin-top:4px;\">Accelerometer Mounting Resonance Calculator. Last updated: February 2025<\/p>\n    <div class=\"vc-footer-links\"><a href=\"\/calculators\/engineering-calculators\/\">All Calculators<\/a><a href=\"https:\/\/vibromera.eu\/contacts\/\">Contact<\/a><\/div>\n<\/footer>\n\n<\/div>\n\n<script src=\"https:\/\/cdn.jsdelivr.net\/npm\/katex@0.16.11\/dist\/katex.min.js\"><\/script>\n<script>\n(function(){\n    'use strict';\n    var SLUG='accelerometer-mounting-resonance';\n    function $(id){return document.getElementById(id)}\n    function fmt(n,d){if(isNaN(n)||!isFinite(n))return '\u2014';var f=n.toFixed(d===undefined?2:d);return f.replace(\/(\\.\\d*?)0+$\/,'$1').replace(\/\\.$\/,'')}\n\n    var MOUNT_FACTORS={stud:{k:0.92,label:'Stud',color:'#2a7a4b'},adhesive:{k:0.65,label:'Adhesive',color:'#2a5c8c'},magnet:{k:0.22,label:'Magnet',color:'#a67c00'},probe:{k:0.065,label:'Probe tip',color:'#b91c1c'}};\n\n    function calculate(){\n        var sensorRes=parseFloat($('vc-sensor-res').value);\n        var sensorMass=parseFloat($('vc-sensor-mass').value);\n        var mountType=$('vc-mount-type').value;\n        var accFactor=parseFloat($('vc-accuracy').value);\n\n        if(!sensorRes||sensorRes<=0){$('vc-results').classList.remove('vc-visible');return}\n\n        var k=MOUNT_FACTORS[mountType].k;\n        var mountedRes=sensorRes*k;\n        var usable=mountedRes*accFactor;\n\n        $('vc-r-usable').innerHTML=fmt(usable,1)+' <span class=\"vc-rcard-unit\">kHz<\/span> <span class=\"vc-rcard-unit\">('+fmt(usable*1000,0)+' Hz)<\/span>';\n        $('vc-r-mounted').innerHTML=fmt(mountedRes,1)+' <span class=\"vc-rcard-unit\">kHz<\/span>';\n        $('vc-r-bare').innerHTML=fmt(sensorRes,1)+' <span class=\"vc-rcard-unit\">kHz<\/span>';\n        $('vc-r-factor').innerHTML=fmt(k*100,0)+'<span class=\"vc-rcard-unit\">%<\/span>';\n        var accLabels={'0.333':'\u00b13 dB (1\/3)','0.2':'\u00b11 dB (1\/5)','0.1':'\u00b10.5 dB (1\/10)'};\n        $('vc-r-accuracy').innerHTML=accLabels[accFactor.toString()]||'\u2014';\n\n        \/\/ Comparison bars\n        var bars=$('vc-mount-bars');bars.innerHTML='';\n        var maxUsable=sensorRes*0.95*0.333; \/\/ stud at 1\/3\n        var types=['stud','adhesive','magnet','probe'];\n        for(var i=0;i<types.length;i++){\n            var t=types[i];var m=MOUNT_FACTORS[t];\n            var u=sensorRes*m.k*accFactor;\n            var pct=Math.min(100,u\/maxUsable*100);\n            var isActive=t===mountType;\n            bars.innerHTML+='<div class=\"vc-mount-bar\"><span class=\"vc-mount-name\">'+m.label+'<\/span><div class=\"vc-mount-barwrap\"><div class=\"vc-mount-fill'+(isActive?' active':'')+'\" style=\"width:'+pct+'%;background:'+m.color+'\">'+fmt(u,1)+' kHz<\/div><\/div><\/div>';\n        }\n\n        $('vc-results').classList.add('vc-visible');\n        saveHistory({sensorRes:sensorRes,mount:mountType,usable:fmt(usable,1),_summary:MOUNT_FACTORS[mountType].label+': usable '+fmt(usable,1)+' kHz'});\n    }\n\n    $('vc-form').addEventListener('input',calculate);\n    $('vc-form').addEventListener('change',calculate);\n\n    $('vc-copy-btn').addEventListener('click',function(){\n        var text='Accelerometer Mounting Resonance\\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\nSensor Resonance: '+$('vc-sensor-res').value+' kHz\\nMount: '+$('vc-mount-type').selectedOptions[0].text+'\\nMounted Resonance: '+$('vc-r-mounted').textContent+'\\nUsable Range: '+$('vc-r-usable').textContent+'\\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\nvibromera.eu';\n        if(navigator.clipboard){navigator.clipboard.writeText(text).then(function(){var btn=$('vc-copy-btn');btn.classList.add('vc-copied');btn.innerHTML='<svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><polyline points=\"20 6 9 17 4 12\"\/><\/svg> Copied!';setTimeout(function(){btn.classList.remove('vc-copied');btn.innerHTML='<svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\"\/><path d=\"M5 15H4a2 2 0 01-2-2V4a2 2 0 012-2h9a2 2 0 012 2v1\"\/><\/svg> Copy';},2000)})}\n    });\n\n    document.querySelectorAll('.vc-section-toggle').forEach(function(btn){btn.addEventListener('click',function(){var s=this.closest('.vc-section');s.classList.toggle('vc-open');this.setAttribute('aria-expanded',s.classList.contains('vc-open'))})});\n\n    var faqData=[\n        {q:'What is accelerometer mounting resonance?',a:'<p>The mounting resonance is the natural frequency of the combined sensor + mounting system. It is always lower than the sensor\\'s bare resonant frequency because the mounting introduces compliance (acts as a spring). This limits the usable frequency range of the measurement.<\/p>'},\n        {q:'Why is 1\/3 of resonance the rule for usable range?',a:'<p>Near resonance, the sensor\\'s amplitude response rises dramatically \u2014 up to +30 dB at resonance itself. At 1\/3 of resonance, the response is within approximately \u00b13 dB of flat, which is acceptable for most industrial measurements. For tighter accuracy, use 1\/5 or 1\/10.<\/p>'},\n        {q:'Which mounting is best for bearing analysis?',a:'<p>Stud mount or thin adhesive (cyanoacrylate) are recommended for bearing analysis because high-frequency content (envelope\/demodulation up to 10\u201320 kHz) must be captured accurately. Magnet mounts cut off too much high-frequency information.<\/p>'},\n        {q:'Does sensor mass affect the mounting resonance?',a:'<p>Yes. Heavier sensors lower the mounting resonance. Also, if the sensor mass is significant relative to the structure (>10%), it mass-loads the structure and changes its vibration characteristics. Always choose the lightest sensor that meets sensitivity requirements.<\/p>'},\n        {q:'Can I improve magnet mount performance?',a:'<p>Yes. Use a flat-bottom rare-earth magnet on a clean, flat, machined surface. Apply firm contact. Avoid paint or rust under the magnet. A flat magnet on a good surface can reach 7\u20138 kHz mounted resonance; a two-pole magnet on rough surface may only achieve 3 kHz.<\/p>'}\n    ];\n    var faqList=$('vc-faq-list');\n    faqData.forEach(function(faq){faqList.innerHTML+='<div class=\"vc-faq-item\"><button type=\"button\" class=\"vc-faq-q\"><span>'+faq.q+'<\/span><svg class=\"vc-faq-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button><div class=\"vc-faq-a\"><div class=\"vc-faq-a-inner\">'+faq.a+'<\/div><\/div><\/div>'});\n    faqList.addEventListener('click',function(e){var btn=e.target.closest('.vc-faq-q');if(!btn)return;btn.closest('.vc-faq-item').classList.toggle('vc-open')});\n\n    function saveHistory(entry){var key='vc_history_'+SLUG;var arr=[];try{arr=JSON.parse(localStorage.getItem(key))||[]}catch(e){}entry._ts=new Date().toISOString();arr.unshift(entry);if(arr.length>10)arr=arr.slice(0,10);try{localStorage.setItem(key,JSON.stringify(arr))}catch(e){}}\n\n    function renderFormulas(){try{katex.render('f_{mounted} = k \\\\times f_{sensor\\\\_resonance}',  $('vc-katex-1'),{displayMode:true,throwOnError:false})}catch(e){}}\n\n    function init(){renderFormulas();calculate()}\n    if(document.readyState==='loading'){document.addEventListener('DOMContentLoaded',init)}else{init()}\n})();\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>T\u00ednh to\u00e1n d\u1ea3i t\u1ea7n s\u1ed1 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c c\u1ee7a gia t\u1ed1c k\u1ebf d\u1ef1a tr\u00ean ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t. So s\u00e1nh t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng c\u1ee7a c\u00e1c ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t b\u1eb1ng \u0111inh t\u00e1n, keo d\u00e1n, nam ch\u00e2m v\u00e0 \u0111\u1ea7u d\u00f2, c\u0169ng nh\u01b0 \u1ea3nh h\u01b0\u1edfng c\u1ee7a ch\u00fang \u0111\u1ebfn b\u0103ng th\u00f4ng \u0111o.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100001","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/calculator\/100001","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/calculator"}],"about":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/types\/calculator"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/calculator\/100001\/revisions"}],"predecessor-version":[{"id":100569,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/calculator\/100001\/revisions\/100569"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/media?parent=100001"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/categories?post=100001"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/tags?post=100001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}