{"version":"1.0","provider_name":"C.I. TAKIRON Corporation. Micro motor product site.","provider_url":"http:\/\/cik-ele.com\/en\/","author_name":"\u897f\u5c71","author_url":"http:\/\/cik-ele.com\/en\/author\/nishiyama\/","title":"THREE CAUSES OF TORQUE RIPPLE AND HOW TO REDUCE IT\uff5cC.I. TAKIRON Corporation. Micro motor product site.","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"WE73sX35wR\"><a href=\"http:\/\/cik-ele.com\/en\/column\/torque-ripple\/\">THREE CAUSES OF TORQUE RIPPLE AND HOW TO REDUCE IT<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"http:\/\/cik-ele.com\/en\/column\/torque-ripple\/embed\/#?secret=WE73sX35wR\" width=\"600\" height=\"338\" title=\"&#8220;THREE CAUSES OF TORQUE RIPPLE AND HOW TO REDUCE IT&#8221; &#8212; C.I. TAKIRON Corporation. Micro motor product site.\" data-secret=\"WE73sX35wR\" 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=http:\/\/cik-ele.com\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/cik-ele.com\/wp-content\/uploads\/2026\/07\/f77e6c3dfa6d3368fa6c90c6447e34c8.jpg","thumbnail_width":1920,"thumbnail_height":1281,"description":"While a motor is rotating, the torque it outputs is not entirely constant. Instantaneous torque undergoes slight periodic fluctuations, manifesting as variations in rotational force. These periodic torque fluctuations are known as \u201ctorque ripple.\u201d Significant torque ripple adversely affects equipment performance, leading to vibration, noise, reduced positioning accuracy, and degraded controllability.This is a technical challenge that cannot be ignored, particularly in fields where smooth operation and precision are directly linked to quality, such as medical equipment, optical equipment, and industrial robots. In this article, after clarifying the basic meaning of torque ripple and its difference from cogging torque, we will explain the main causes of its occurrence and methods for reducing it from the perspectives of design, control, and motor selection. This content serves as a reference for the selection and design of compact motors."}