{"id":100009,"date":"2026-02-15T20:05:51","date_gmt":"2026-02-15T20:05:51","guid":{"rendered":"https:\/\/vibromera.eu\/?post_type=calculator&#038;p=100009"},"modified":"2026-02-15T20:05:51","modified_gmt":"2026-02-15T20:05:51","slug":"balancing-machine-sensitivity","status":"publish","type":"calculator","link":"https:\/\/vibromera.eu\/pt_br\/calculators\/balancing-machine-sensitivity\/","title":{"rendered":"Calculadora de Sensibilidade de Balanceadoras | ISO 21940-31"},"content":{"rendered":"\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"WebApplication\",\"name\":\"Balancing Machine Sensitivity Calculator\",\"description\":\"Calculate minimum detectable unbalance and achievable balance grade for balancing machines per ISO 21940-31.\",\"url\":\"https:\/\/vibromera.eu\/calculators\/balancing-machine-sensitivity\/\",\"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 minimum detectable unbalance (Umin)?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Umin is the smallest unbalance that a balancing machine can reliably detect and display. It depends on the machine type, sensor sensitivity, display resolution, rotor mass, and balancing speed. A lower Umin means better sensitivity.\"}},\n{\"@type\":\"Question\",\"name\":\"What is the difference between soft and hard bearing balancing machines?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Soft bearing machines operate below the first critical speed of the rotor-bearing system, measuring displacement. Hard bearing machines operate well below critical speed with stiff supports, measuring force. Hard bearing machines are generally faster to set up but may have slightly lower sensitivity for light rotors.\"}},\n{\"@type\":\"Question\",\"name\":\"How does rotor mass affect achievable balance grade?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"For a given Umin, a heavier rotor will have a better (lower) achievable residual specific unbalance (e = Umin\/m). This means heavier rotors can potentially achieve better balance grades on the same machine.\"}},\n{\"@type\":\"Question\",\"name\":\"What balance grades can typical machines achieve?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"High-quality industrial balancing machines typically achieve G1.0 to G2.5. Laboratory-grade machines can achieve G0.4 or better. The achievable grade also depends on rotor speed \u2014 higher speeds make finer grades easier to achieve.\"}},\n{\"@type\":\"Question\",\"name\":\"How is machine sensitivity verified per ISO 21940-31?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Machine sensitivity is verified by placing a known test unbalance on a test rotor and confirming the machine can detect and display it correctly. The test is repeated at different angular positions and the results must be within specified tolerances.\"}}\n]}\n<\/script>\n\n<script type=\"application\/ld+json\">\n{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vibromera.eu\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Calculators\",\"item\":\"https:\/\/vibromera.eu\/calculators\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Balancing Machine Sensitivity\",\"item\":\"https:\/\/vibromera.eu\/calculators\/balancing-machine-sensitivity\/\"}]}\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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16px;border:none;background:var(--vc-surface-alt);cursor:pointer;font-family:var(--vc-font);font-size:15px;font-weight:600;color:var(--vc-ink);text-align:left;transition:background .15s}.vc-faq-q:hover{background:#ede9e3}.vc-faq-chevron{width:16px;height:16px;color:var(--vc-ink-muted);flex-shrink:0;transition:transform .25s}.vc-faq-item.vc-open .vc-faq-chevron{transform:rotate(180deg)}.vc-faq-a{max-height:0;overflow:hidden;transition:max-height .35s}.vc-faq-item.vc-open .vc-faq-a{max-height:1200px}.vc-faq-a-inner{padding:14px 16px;border-top:1px solid var(--vc-border-light);font-size:14px;color:var(--vc-ink-secondary)}.vc-faq-a-inner p{margin:0 0 8px}.vc-faq-a-inner p:last-child{margin-bottom:0}\n.vc-related{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}.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 .15s}.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}.vc-promo-text{flex:1;font-size:14px;color:var(--vc-ink-secondary)}.vc-promo-text strong{color:var(--vc-ink)}.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 .15s}.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)}.vc-footer a{color:var(--vc-accent);text-decoration:none}.vc-footer a:hover{text-decoration:underline}.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-presets,.vc-promo{display:none!important}}\n<\/style>\n\n<div class=\"vc-calculator\" id=\"vc-balancing-sensitivity\">\n<header class=\"vc-header\">\n    <p class=\"vc-header-eyebrow\">Free Engineering Tool<\/p>\n    <h1 class=\"vc-header-title\">Balancing Machine Sensitivity Calculator<\/h1>\n    <p class=\"vc-header-subtitle\">Calculate minimum detectable unbalance (Umin) and achievable balance grade for soft or hard bearing balancing machines per ISO 21940-31.<\/p>\n    <div class=\"vc-badges\"><span class=\"vc-badge\">ISO 21940-31<\/span><span class=\"vc-badge\">Umin<\/span><span class=\"vc-badge\">Soft \/ Hard Bearing<\/span><\/div>\n<\/header>\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\"><label class=\"vc-label\" for=\"vc-type\">Machine Type<\/label><select class=\"vc-select\" id=\"vc-type\"><option value=\"soft\">Soft Bearing<\/option><option value=\"hard\" selected>Hard Bearing<\/option><\/select><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-mass\">Rotor Mass <span class=\"vc-label-hint\">(kg)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-mass\" step=\"any\" min=\"0.01\" value=\"50\" placeholder=\"e.g. 50\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-speed\">Balancing Speed <span class=\"vc-label-hint\">(RPM)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-speed\" step=\"any\" min=\"1\" value=\"1000\" placeholder=\"e.g. 1000\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-service\">Service Speed <span class=\"vc-label-hint\">(RPM)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-service\" step=\"any\" min=\"1\" value=\"3000\" placeholder=\"e.g. 3000\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-sensitivity\">Sensor Sensitivity <span class=\"vc-label-hint\">(mV per g\u00b7mm)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-sensitivity\" step=\"any\" min=\"0.001\" value=\"0.5\" placeholder=\"e.g. 0.5\"><\/div>\n            <div class=\"vc-field\"><label class=\"vc-label\" for=\"vc-resolution\">Display Resolution <span class=\"vc-label-hint\">(g\u00b7mm)<\/span><\/label><input class=\"vc-input\" type=\"number\" id=\"vc-resolution\" step=\"any\" min=\"0.001\" value=\"0.1\" placeholder=\"e.g. 0.1\"><\/div>\n        <\/div>\n        <div class=\"vc-presets\">\n            <div class=\"vc-presets-label\">Quick presets<\/div>\n            <button type=\"button\" class=\"vc-preset-btn\" data-t=\"hard\" data-m=\"50\" data-s=\"1000\" data-sv=\"3000\" data-se=\"0.5\" data-r=\"0.1\">Small rotor 50 kg<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-t=\"hard\" data-m=\"500\" data-s=\"600\" data-sv=\"1500\" data-se=\"0.2\" data-r=\"1\">Medium rotor 500 kg<\/button>\n            <button type=\"button\" class=\"vc-preset-btn\" data-t=\"soft\" data-m=\"5\" data-s=\"3000\" data-sv=\"10000\" data-se=\"2\" data-r=\"0.01\">Turbo rotor 5 kg<\/button>\n        <\/div>\n    <\/form>\n    <div class=\"vc-results\" id=\"vc-results\">\n        <div class=\"vc-results-head\"><h2 class=\"vc-results-title\">Results<\/h2><button type=\"button\" class=\"vc-copy-btn\" id=\"vc-copy-btn\"><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<\/button><\/div>\n        <div class=\"vc-result-grid\">\n            <div class=\"vc-rcard vc-rcard-primary\"><div class=\"vc-rcard-label\">Minimum Detectable Unbalance (Umin)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-umin\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Residual Specific Unbalance (eper)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-eper\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Achievable Balance Grade<\/div><div class=\"vc-rcard-value\" id=\"vc-r-grade\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Unbalance Reduction Ratio (URR)<\/div><div class=\"vc-rcard-value\" id=\"vc-r-urr\">\u2014<\/div><\/div>\n            <div class=\"vc-rcard\"><div class=\"vc-rcard-label\">Service Speed \u03c9<\/div><div class=\"vc-rcard-value\" id=\"vc-r-omega\">\u2014<\/div><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n<div class=\"vc-section vc-open\" id=\"vc-sec-theory\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"true\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udcd8<\/span><span class=\"vc-section-title\">Theory &amp; Formulas<\/span><\/span><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><\/button>\n    <div class=\"vc-section-body\"><div class=\"vc-section-inner vc-theory\">\n        <h3>Minimum Detectable Unbalance<\/h3>\n        <p>The minimum detectable unbalance (Umin) of a balancing machine depends on sensor sensitivity, electronic noise floor, and display resolution:<\/p>\n        <div class=\"vc-formula-box\" id=\"vc-katex-1\"><\/div>\n        <h3>Achievable Balance Grade<\/h3>\n        <div class=\"vc-formula-box\" id=\"vc-katex-2\"><\/div>\n        <p>Where \u03c9 is the angular velocity at <strong>service speed<\/strong> (not balancing speed).<\/p>\n        <div class=\"vc-info-box\"><p><strong>Per ISO 21940-31:<\/strong> Umin should be \u2264 10% of the permissible residual unbalance (Uper) to achieve reliable balancing results. This ensures the measurement uncertainty does not dominate.<\/p><\/div>\n    <\/div><\/div>\n<\/div>\n<div class=\"vc-section\" id=\"vc-sec-related\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\ud83d\udd17<\/span><span class=\"vc-section-title\">Related Calculators<\/span><\/span><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><\/button>\n    <div class=\"vc-section-body\"><div class=\"vc-section-inner\"><div class=\"vc-related\">\n        <a class=\"vc-related-link\" href=\"\/calculators\/residual-unbalance-iso1940\/\">Residual Unbalance (ISO 1940)<\/a>\n        <a class=\"vc-related-link\" href=\"\/calculators\/condition-monitoring-method-selector\/\">Condition Monitoring Selector<\/a>\n    <\/div><\/div><\/div>\n<\/div>\n<div class=\"vc-section\" id=\"vc-sec-faq\">\n    <button type=\"button\" class=\"vc-section-toggle\" aria-expanded=\"false\"><span class=\"vc-section-toggle-text\"><span class=\"vc-section-icon\">\u2753<\/span><span class=\"vc-section-title\">Frequently Asked Questions<\/span><\/span><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><\/button>\n    <div class=\"vc-section-body\"><div class=\"vc-section-inner\"><div class=\"vc-faq-list\" id=\"vc-faq-list\"><\/div><\/div><\/div>\n<\/div>\n<div class=\"vc-promo\"><div class=\"vc-promo-text\"><strong>Vibromera \u2014 Portable Balancing &amp; Vibration Analysis<\/strong><br>Professional portable balancing instruments achieving G0.4 to G6.3 in the field. Used in 50+ countries.<\/div><a class=\"vc-promo-link\" href=\"https:\/\/vibromera.eu\/\" target=\"_blank\" rel=\"noopener\">Learn More<\/a><\/div>\n<footer class=\"vc-footer\"><p>&copy; 2024\u20132025 <a href=\"https:\/\/vibromera.eu\/\">Vibromera<\/a> \u2014 Engineering Calculators<\/p><p style=\"font-size:12px;margin-top:4px;\">Based on ISO 21940-31. Last updated: February 2025<\/p><div class=\"vc-footer-links\"><a href=\"\/calculators\/engineering-calculators\/\">All Calculators<\/a><a href=\"https:\/\/vibromera.eu\/contacts\/\">Contact<\/a><\/div><\/footer>\n<\/div>\n<script src=\"https:\/\/cdn.jsdelivr.net\/npm\/katex@0.16.11\/dist\/katex.min.js\"><\/script>\n<script>\n(function(){\n'use strict';\nfunction $(id){return document.getElementById(id)}\nfunction fmt(n,d){if(isNaN(n))return'\u2014';return n.toFixed(d===undefined?2:d).replace(\/(\\.\\d*?)0+$\/,'$1').replace(\/\\.$\/,'')}\n\nvar GRADES=[0.4,1,2.5,6.3,16,40,100,250,630,1600,4000];\n\nfunction calculate(){\n    var mass=parseFloat($('vc-mass').value);\n    var speed=parseFloat($('vc-speed').value);\n    var service=parseFloat($('vc-service').value);\n    var sens=parseFloat($('vc-sensitivity').value);\n    var res=parseFloat($('vc-resolution').value);\n    if(!mass||mass<=0||!speed||speed<=0||!service||service<=0||!sens||!res){$('vc-results').classList.remove('vc-visible');return}\n\n    \/\/ Umin is limited by display resolution (in g\u00b7mm)\n    var Umin=res;\n    \/\/ Effective Umin also considers noise floor: approx 2mV \/ sensitivity\n    var noiseFloor=2.0\/sens; \/\/ g\u00b7mm equivalent from ~2mV noise\n    if(noiseFloor>Umin) Umin=noiseFloor;\n    \/\/ Adjust for balancing speed (sensitivity improves with speed\u00b2)\n    var speedFactor=(speed\/1000)*(speed\/1000);\n    if(speedFactor<1) Umin=Umin\/Math.max(speedFactor,0.1);\n\n    var eper=Umin\/mass; \/\/ \u03bcm (g\u00b7mm \/ kg = \u03bcm)\n    var omega=2*Math.PI*service\/60;\n    var eOmega=eper*omega\/1000; \/\/ mm\/s\n    var grade=null;\n    for(var i=0;i<GRADES.length;i++){if(eOmega<=GRADES[i]){grade=GRADES[i];break}}\n    if(!grade)grade=GRADES[GRADES.length-1];\n\n    \/\/ URR: ratio of Umin to typical initial unbalance (assume 10\u00d7 G6.3 per)\n    var uperG63=6.3*1000\/omega*mass;\n    var urr=uperG63>0?Umin\/uperG63:0;\n\n    $('vc-r-umin').innerHTML=fmt(Umin,Umin<1?3:1)+' <span class=\"vc-rcard-unit\">g\u00b7mm<\/span>';\n    $('vc-r-eper').innerHTML=fmt(eper,eper<1?3:2)+' <span class=\"vc-rcard-unit\">\u03bcm<\/span>';\n    $('vc-r-grade').innerHTML='G'+grade+' <span class=\"vc-rcard-unit\">(e\u00b7\u03c9 = '+fmt(eOmega,2)+' mm\/s)<\/span>';\n    $('vc-r-urr').innerHTML=fmt(urr*100,2)+' <span class=\"vc-rcard-unit\">% of G6.3 Uper<\/span>';\n    $('vc-r-omega').innerHTML=fmt(omega,1)+' <span class=\"vc-rcard-unit\">rad\/s ('+service+' RPM)<\/span>';\n    $('vc-results').classList.add('vc-visible');\n}\n\n$('vc-form').addEventListener('input',calculate);\n$('vc-form').addEventListener('change',calculate);\n\ndocument.querySelectorAll('.vc-preset-btn').forEach(function(btn){btn.addEventListener('click',function(e){e.preventDefault();$('vc-type').value=this.getAttribute('data-t');$('vc-mass').value=this.getAttribute('data-m');$('vc-speed').value=this.getAttribute('data-s');$('vc-service').value=this.getAttribute('data-sv');$('vc-sensitivity').value=this.getAttribute('data-se');$('vc-resolution').value=this.getAttribute('data-r');calculate()})});\n\n$('vc-copy-btn').addEventListener('click',function(){var text='Balancing Machine Sensitivity\\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\nUmin: '+$('vc-r-umin').textContent+'\\nSpecific: '+$('vc-r-eper').textContent+'\\nGrade: '+$('vc-r-grade').textContent+'\\n\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\u2501\\nvibromera.eu\/calculators\/balancing-machine-sensitivity\/';if(navigator.clipboard){navigator.clipboard.writeText(text).then(function(){var b=$('vc-copy-btn');b.classList.add('vc-copied');b.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(){b.classList.remove('vc-copied');b.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\ndocument.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\nvar faqData=[\n    {q:'What is minimum detectable unbalance (Umin)?',a:'<p><strong>Umin<\/strong> is the smallest unbalance a balancing machine can reliably detect. It depends on sensor sensitivity, noise floor, display resolution, and balancing speed. A lower Umin means better precision.<\/p>'},\n    {q:'Soft bearing vs hard bearing \u2014 what is the difference?',a:'<p><strong>Soft bearing<\/strong> machines operate below the rotor-support critical speed, measuring displacement. <strong>Hard bearing<\/strong> machines use stiff supports and measure force. Hard bearing machines are faster to set up; soft bearing machines can offer better sensitivity for light rotors.<\/p>'},\n    {q:'How does rotor mass affect achievable grade?',a:'<p>For a given Umin, heavier rotors have a better (lower) specific unbalance: e = Umin\/m. This means heavier rotors can achieve finer balance grades on the same machine.<\/p>'},\n    {q:'What grades can typical machines achieve?',a:'<p>Industrial machines typically achieve <strong>G1.0 to G2.5<\/strong>. Laboratory-grade machines achieve <strong>G0.4<\/strong> or better. The achievable grade depends on both machine sensitivity and service speed.<\/p>'},\n    {q:'How is machine sensitivity verified?',a:'<p>Per ISO 21940-31: place a known test unbalance on a test rotor and confirm the machine detects it correctly. Repeat at different angular positions. Results must be within specified tolerances.<\/p>'}\n];\nvar fl=$('vc-faq-list');faqData.forEach(function(f){fl.innerHTML+='<div class=\"vc-faq-item\"><button type=\"button\" class=\"vc-faq-q\"><span>'+f.q+'<\/span><svg class=\"vc-faq-chevron\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"><path d=\"M6 9l6 6 6-6\"\/><\/svg><\/button><div class=\"vc-faq-a\"><div class=\"vc-faq-a-inner\">'+f.a+'<\/div><\/div><\/div>'});\nfl.addEventListener('click',function(e){var b=e.target.closest('.vc-faq-q');if(b)b.closest('.vc-faq-item').classList.toggle('vc-open')});\n\nfunction init(){\n    try{\n        katex.render('U_{\\\\min} = \\\\max\\\\left(\\\\text{Display Resolution},\\\\; \\\\frac{\\\\text{Noise Floor}}{\\\\text{Sensor Sensitivity}}\\\\right)',$('vc-katex-1'),{displayMode:true,throwOnError:false});\n        katex.render('G = e_{per} \\\\times \\\\omega \/ 1000 = \\\\frac{U_{\\\\min}}{m} \\\\times \\\\frac{2\\\\pi n_{service}}{60 \\\\times 1000} \\\\quad [\\\\text{mm\/s}]',$('vc-katex-2'),{displayMode:true,throwOnError:false});\n    }catch(e){}\n    calculate();\n}\nif(document.readyState==='loading')document.addEventListener('DOMContentLoaded',init);else init();\n})();\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Calculadora gratuita de sensibilidade para m\u00e1quinas de balanceamento, em conformidade com a norma ISO 21940-31. Calcule o desbalanceamento m\u00ednimo detect\u00e1vel (Umin), o grau de balanceamento alcan\u00e7\u00e1vel e a taxa de desbalanceamento residual para m\u00e1quinas com mancais r\u00edgidos e flex\u00edveis.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-100009","calculator","type-calculator","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/calculator\/100009","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/calculator"}],"about":[{"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/types\/calculator"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/calculator\/100009\/revisions"}],"predecessor-version":[{"id":100323,"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/calculator\/100009\/revisions\/100323"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/media?parent=100009"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/categories?post=100009"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/pt_br\/wp-json\/wp\/v2\/tags?post=100009"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}