{"id":22331,"date":"2026-02-16T08:16:30","date_gmt":"2026-02-15T23:16:30","guid":{"rendered":"https:\/\/aireviewirush.com\/?p=22331"},"modified":"2026-02-16T08:16:30","modified_gmt":"2026-02-15T23:16:30","slug":"excessive-precision-robots-what-to-do-when-absolute-accuracy-is-poor","status":"publish","type":"post","link":"https:\/\/aireviewirush.com\/?p=22331","title":{"rendered":"Excessive-precision robots: What to do when absolute accuracy is poor?"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div>\n<div id=\"attachment_586988\" style=\"width: 780px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-586988\" class=\"wp-image-586988 size-full\" src=\"https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/FRaunhofer_IPA.jpg\" alt=\"Industrial robots. With excellent equipment and many years of experience, Fraunhofer IPA gets to the root causes of inaccurate robot operation.\" width=\"770\" height=\"495\" srcset=\"https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/FRaunhofer_IPA.jpg 770w, https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/FRaunhofer_IPA-300x193.jpg 300w, https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/FRaunhofer_IPA-150x96.jpg 150w, https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/FRaunhofer_IPA-768x494.jpg 768w, https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/FRaunhofer_IPA-368x238.jpg 368w\" sizes=\"auto, (max-width: 770px) 100vw, 770px\"\/><\/p>\n<p id=\"caption-attachment-586988\" class=\"wp-caption-text\">With high gear and years of expertise, Fraunhofer IPA will get to the foundation causes of inaccurate robotic operation. Supply: Rainer Bez, Fraunhofer IPA<\/p>\n<\/div>\n<p>Robots are nearly all the time extremely repeatable. Absolute accuracy, then again, typically leaves one thing to be desired. A staff on the Fraunhofer Institute for Manufacturing Engineering and Automation IPA is uncovering the explanations for this and serving to corporations to realize extra environment friendly robotic techniques.<\/p>\n<p>Repeatability and absolute accuracy are established parameters for assessing the standard and precision with which a robotic performs a selected process. If a robotic performs a selected process many instances with nearly an identical outcomes, this demonstrates excellent repeatability. Many <a href=\"https:\/\/www.therobotreport.com\/category\/robots-platforms\/industrial-robots\/\" target=\"_blank\" rel=\"noopener\">industrial<\/a> robots obtain values within the vary of 0.1 mm or higher.<\/p>\n<p>In distinction, absolute accuracy describes how precisely a robotic\u2019s spatial coordinates are achieved in relation to its base system, no matter earlier actions. And right here, there may be typically nonetheless room for enchancment. Usually, values between 0.5 and 1.5 mm are achieved. This tendency towards inaccuracy is just not an issue for some purposes, however it&#8217;s for others.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_53 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\" role=\"button\"><label for=\"item-69e7eae6857b2\" ><span class=\"\"><span style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input aria-label=\"Toggle\" aria-label=\"item-69e7eae6857b2\"  type=\"checkbox\" id=\"item-69e7eae6857b2\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/aireviewirush.com\/?p=22331\/#Disadvantages_of_inaccurate_robots\" title=\"Disadvantages of inaccurate robots\">Disadvantages of inaccurate robots<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/aireviewirush.com\/?p=22331\/#Causes_for_an_absence_of_absolute_accuracy\" title=\"Causes for an absence of absolute accuracy\">Causes for an absence of absolute accuracy<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/aireviewirush.com\/?p=22331\/#Complete_evaluation_with_new_benchmark\" title=\"Complete evaluation with new benchmark\">Complete evaluation with new benchmark<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/aireviewirush.com\/?p=22331\/#Added_worth_of_excessive_absolute_accuracy\" title=\"Added worth of excessive absolute accuracy\">Added worth of excessive absolute accuracy<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/aireviewirush.com\/?p=22331\/#Concerning_the_writer\" title=\"Concerning the writer\">Concerning the writer<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Disadvantages_of_inaccurate_robots\"><\/span>Disadvantages of inaccurate robots<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>It&#8217;s tough to make use of robots with low absolute accuracy in processes that aren&#8217;t repeated identically, corresponding to within the manufacturing of small batch sizes. When <a href=\"https:\/\/www.therobotreport.com\/tag\/welding\" target=\"_blank\" rel=\"noopener\">welding<\/a> an meeting, for instance, it&#8217;s notably vital that the wire tip is positioned exactly within the heart of the weld seam. Actual positioning ends in high-quality weld seams that meet business necessities.<\/p>\n<p>Nonetheless, deviations of just some tenths of a millimeter can considerably impair high quality and even result in rejections. Absolute accuracy is just not solely vital for robot-based welding, but additionally for purposes corresponding to choose and place, overspray-free portray, or robot-based drilling and deburring.<\/p>\n<p>One other drawback of inaccurate robots turns into obvious in offline programming (OLP), which can be often used within the processes talked about above. Right here, the robotic program is created in a simulation after which transferred to the true robotic. The benefit lies in the opportunity of the robotic sustaining operation whereas programming is carried out. Due to this fact, whereas the robotic is processing one element, the following element could be programmed in parallel.<\/p>\n<p>But when absolute accuracy is inadequate, the created program can&#8217;t be used instantly. As a substitute, time-consuming corrections are needed, resulting in undesirable machine downtime, which in flip impairs effectivity and productiveness.<\/p>\n<p>The usually-achieved absolute accuracy of 0.5 to 1.5 mm is due to this fact inadequate for complicated purposes and might restrict and even stop the usage of robots in sure purposes. It additionally often results in extra work steps, such because the re-teaching, which reduces the effectivity of your entire manufacturing chain. In lots of industrial situations, an absolute accuracy that&#8217;s just like the repeatability is fascinating and even required.<\/p>\n<hr\/>\n<div style=\"text-align: center;\"><a href=\"https:\/\/www.roboticssummit.com\/\" target=\"_blank\" rel=\"noopener\">&#13;<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-568305\" src=\"https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/01\/Early-Bird-Promo-Inline-Ad-RSE-2.png\" alt=\"SITE AD for the 2026 Robotics Summit save the date.\" width=\"728\" height=\"90\"\/><\/a><\/div>\n<hr\/>\n<h2><span class=\"ez-toc-section\" id=\"Causes_for_an_absence_of_absolute_accuracy\"><\/span>Causes for an absence of absolute accuracy<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Along with the accuracy measurements provided in accordance with <a href=\"https:\/\/www.iso.org\/standard\/22244.html\" target=\"_blank\" rel=\"noopener\">ISO 9283<\/a>, corporations repeatedly flip to <a href=\"https:\/\/www.ipa.fraunhofer.de\/en.html\" target=\"_blank\" rel=\"noopener\">Fraunhofer IPA<\/a> with the query of how they will enhance the efficiency of their robots by way of precision. The causes of inaccuracies are manifold and could be divided into hardware-related, software-related, and externally associated causes.<\/p>\n<p>{Hardware}-related causes might embrace the design of the robotic, corresponding to inferior encoders or gears, or inadequate rigidity, whether or not it&#8217;s an articulated arm, a SCARA robotic, or a gantry system. Poor calibration of the robotic is likely one of the predominant causes for inaccuracy on the software program facet, together with inadequate <a href=\"https:\/\/www.therobotreport.com\/category\/technologies\/controllers\/\" target=\"_blank\" rel=\"noopener\">controller<\/a> efficiency.<\/p>\n<p>As well as, an growing variety of robotic techniques are moreover geared up with \u201ccognitive\u201d features, notably these associated to notion. These so-called closed-loop techniques work with <a href=\"https:\/\/www.therobotreport.com\/category\/technologies\/sensors-sensing\/\" target=\"_blank\" rel=\"noopener\">sensors<\/a> that detect the robotic\u2019s surroundings, and their <a href=\"https:\/\/www.therobotreport.com\/category\/software-simulation\/\" target=\"_blank\" rel=\"noopener\">software program<\/a> processes the measured information to regulate the robotic\u2019s path accordingly. In such a system, poor sensor information, a low-performing controller, or suboptimal interplay between the elements within the robotic cell often trigger issues.<\/p>\n<p>Lastly, exterior components corresponding to temperature and air strain, but additionally course of forces that happen, can have a damaging affect on absolute accuracy.<\/p>\n<div id=\"attachment_586990\" style=\"width: 780px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-586990\" class=\"size-full wp-image-586990\" src=\"https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/IM7A4063_c.jpg\" alt=\"The measurements made by these devices have an accuracy of +- 40 \u00b5m anywhere in the working space.\" width=\"770\" height=\"494\" srcset=\"https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/IM7A4063_c.jpg 770w, https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/IM7A4063_c-300x192.jpg 300w, https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/IM7A4063_c-150x96.jpg 150w, https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/IM7A4063_c-768x493.jpg 768w, https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/IM7A4063_c-368x236.jpg 368w\" sizes=\"auto, (max-width: 770px) 100vw, 770px\"\/><\/p>\n<p id=\"caption-attachment-586990\" class=\"wp-caption-text\">The measurements made by these gadgets have an accuracy of +- 40 \u00b5m wherever within the working house. Supply: Fraunhofer IPA<\/p>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Complete_evaluation_with_new_benchmark\"><\/span>Complete evaluation with new benchmark<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>If corporations that use robots, in addition to the robotic producers themselves, are dissatisfied with absolutely the accuracy of their techniques, your entire utility needs to be examined and analyzed. As described above, a person investigation of the causes is critical.<\/p>\n<p>The automation staff at Fraunhofer IPA is a impartial challenge companion that may conduct this root-cause evaluation in a methodical method based mostly on in depth knowledgeable information and expertise.<\/p>\n<p>In a typical challenge, the staff first information the present scenario utilizing sensor know-how such because the Leica Absolute Tracker AT960 to create a strong database. The laser tracker information the positions of the robotic with submillimeter accuracy. Particular efficiency indicators are calculated from the recorded information, which can be utilized to find out the efficiency of the robotic system.<\/p>\n<p>As well as, the traits of the robotic\u2019s <a href=\"https:\/\/www.therobotreport.com\/category\/robot-components\/motioncontrol\/\" target=\"_blank\" rel=\"noopener\">actions<\/a> are examined, which additionally present helpful insights. In an extra step, the consultants examine the reason for the undesirable conduct. To do that, they study each the {hardware} and software program of the robotic system.<\/p>\n<p>As well as, the staff has developed a closed-loop benchmark particularly for the closed-loop robotic techniques talked about above. The benchmark is appropriate for robots from many producers. Within the benchmark, a reference-giving machine, a \u201cmetronome,\u201d is used to impress the robotic into sure behaviors, which permits conclusions to be drawn about its efficiency.<\/p>\n<p>Whereas ISO 9283 solely focuses on the robotic itself to measure absolute accuracy, the benchmark developed can study every part that makes up a closed-loop managed course of or process. For example, this consists of the efficiency of your entire robotic cell, together with the sensor know-how and the supposed course of.<\/p>\n<p>The benchmark process was offered on the 56th Worldwide Robotics Symposium (ISR 2023) and on the twenty first Worldwide Convention on Automation Expertise and Mechanical Engineering (CASE 2025).<\/p>\n<div id=\"attachment_586989\" style=\"width: 780px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-586989\" class=\"size-full wp-image-586989\" src=\"https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/IM7A4068_b.jpg\" alt=\"With an accurate robot, the planned path can be executed without manual interaction on the real robot.\" width=\"770\" height=\"497\" srcset=\"https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/IM7A4068_b.jpg 770w, https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/IM7A4068_b-300x194.jpg 300w, https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/IM7A4068_b-150x97.jpg 150w, https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/IM7A4068_b-768x496.jpg 768w, https:\/\/www.therobotreport.com\/wp-content\/uploads\/2026\/02\/IM7A4068_b-368x238.jpg 368w\" sizes=\"auto, (max-width: 770px) 100vw, 770px\"\/><\/p>\n<p id=\"caption-attachment-586989\" class=\"wp-caption-text\">With an correct robotic, the deliberate path could be executed with out guide interplay on the true robotic. Supply: Fraunhofer IPA<\/p>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Added_worth_of_excessive_absolute_accuracy\"><\/span>Added worth of excessive absolute accuracy<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A robotic with adequate absolute accuracy cannot solely change costlier gear but additionally improve flexibility and decrease rework. In lots of purposes, it due to this fact is smart to analyze anomalies and enhance absolute accuracy.<\/p>\n<p>A robotic that works exactly and reliably affords financial benefits, in addition to will increase an organization\u2019s competitiveness. Investing on this space is due to this fact a strategic choice that pays off in the long run.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Concerning_the_writer\"><\/span>Concerning the writer<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Martin Finkbeiner is a challenge supervisor on the Fraunhofer Institute for Manufacturing Engineering and Automation IPA. He could be reached at <em><a href=\"http:\/\/www.therobotreport.com\/cdn-cgi\/l\/email-protection#35585447415c5b1b535c5b5e57505c5b5047755c45541b534754405b5d5a5350471b5150\" target=\"_blank\" rel=\"noopener\"><span class=\"__cf_email__\" data-cfemail=\"0964687b7d6067276f6067626b6c60676c7b49607968276f7b687c6761666f6c7b276d6c\">[email\u00a0protected]<\/span><\/a><\/em> and +49 711 9701046.<\/p>\n<p><div class=\"youtube-embed\" data-video_id=\"sZxGwG0qrYU\"><iframe loading=\"lazy\" title=\"Measurement of industrial robots to increase accuracy\" width=\"696\" height=\"392\" src=\"https:\/\/www.youtube.com\/embed\/sZxGwG0qrYU?feature=oembed&#038;enablejsapi=1\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/p>\n<p><!--<rdf:RDF xmlns:rdf=\"http:\/\/www.w3.org\/1999\/02\/22-rdf-syntax-ns#\"\n\t\t\txmlns:dc=\"http:\/\/purl.org\/dc\/elements\/1.1\/\"\n\t\t\txmlns:trackback=\"http:\/\/madskills.com\/public\/xml\/rss\/module\/trackback\/\">\n\t\t<rdf:Description rdf:about=\"https:\/\/www.therobotreport.com\/high-precision-robots-what-to-do-when-absolute-accuracy-is-poor\/\"\n    dc:identifier=\"https:\/\/www.therobotreport.com\/high-precision-robots-what-to-do-when-absolute-accuracy-is-poor\/\"\n    dc:title=\"High-precision robots: What to do when absolute accuracy is poor?\"\n    trackback:ping=\"https:\/\/www.therobotreport.com\/high-precision-robots-what-to-do-when-absolute-accuracy-is-poor\/trackback\/\" \/>\n<\/rdf:RDF>-->\n<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>With high gear and years of expertise, Fraunhofer IPA will get to the foundation causes of inaccurate robotic operation. Supply: Rainer Bez, Fraunhofer IPA Robots are nearly all the time extremely repeatable. Absolute accuracy, then again, typically leaves one thing to be desired. A staff on the Fraunhofer Institute for Manufacturing Engineering and Automation IPA [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":22334,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":{"0":"post-22331","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-robotics"},"_links":{"self":[{"href":"https:\/\/aireviewirush.com\/index.php?rest_route=\/wp\/v2\/posts\/22331","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aireviewirush.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aireviewirush.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aireviewirush.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aireviewirush.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=22331"}],"version-history":[{"count":1,"href":"https:\/\/aireviewirush.com\/index.php?rest_route=\/wp\/v2\/posts\/22331\/revisions"}],"predecessor-version":[{"id":22333,"href":"https:\/\/aireviewirush.com\/index.php?rest_route=\/wp\/v2\/posts\/22331\/revisions\/22333"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aireviewirush.com\/index.php?rest_route=\/wp\/v2\/media\/22334"}],"wp:attachment":[{"href":"https:\/\/aireviewirush.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=22331"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aireviewirush.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=22331"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aireviewirush.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=22331"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}