{"id":52028,"date":"2025-09-22T02:19:32","date_gmt":"2025-09-22T07:19:32","guid":{"rendered":"https:\/\/www.arbin.com\/?p=52028"},"modified":"2025-10-15T10:21:33","modified_gmt":"2025-10-15T15:21:33","slug":"how-to-perform-dc-internal-resistance-measurement-with-arbin","status":"publish","type":"post","link":"https:\/\/www.arbin.com\/zh\/how-to-perform-dc-internal-resistance-measurement-with-arbin.html","title":{"rendered":"How to perform DC Internal Resistance measurement with Arbin?"},"content":{"rendered":"<strong data-renderer-mark=\"true\">Mechanism explanations:<\/strong>\nArbin&#8217;s MITS software uses pulse method to calculate IR. In order to achieve better accuracy, the software measures the IR 10 times and takes the average.\nThe pulse looks like the graph bellow:\n<figure id=\"attachment_52032\" aria-describedby=\"caption-attachment-52032\" style=\"width: 944px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" src=\"https:\/\/www.arbin.com\/wp-content\/uploads\/2025\/09\/pulse-graph-mits-arbin-software.png\" alt=\"pulse graph mits arbin software\" width=\"944\" height=\"235\" \/><figcaption id=\"caption-attachment-52032\" class=\"wp-caption-text\">Pulse Graph &#8211; MITS, Arbin Software<\/figcaption><\/figure>\nIIR is the amplitude value\nT2 is the extra control value1\nI0 is the offset value\nIR Calculation Formula:\nIR = Average {(Voltage at P2 &#8211; Voltage at P3)\/ (2IIR)}\n<strong data-renderer-mark=\"true\"><\/strong><strong data-renderer-mark=\"true\">Writing t<\/strong>he schedule for IR calculation is quite simple.\nYou will only need 2 steps:\n<ol start=\"1\" data-indent-level=\"1\">\n<li>\nRest step: Mainly plays the role of initial safety check\n<\/li>\n<li>\nInternal Resistance steps\n<\/li>\n<\/ol>\n<p><img decoding=\"async\" src=\"https:\/\/www.arbin.com\/wp-content\/uploads\/2025\/09\/internal-resistance-steps-in-schedule-mits-arbin-software.png\" alt=\"internal resistance steps in schedule mits arbin software\" width=\"2296\" height=\"534\" \/><\/p>\n<ul data-indent-level=\"1\">\n<li>\nAmplitude: Amplitude determines the applied current value. For optimized accuracy, the applied current value should generate at least 10mV voltage change during the IR measurement. In general, the current should be at least 0.1C of your battery.\n<\/li>\n<li>\nYou can also set the current range by inputting a suitable number in the box of the Max Current (A)\n<\/li>\n<li>\nCurrent ranges are written on the label attached on the Arbin chassis. For example, you can see all the ranges from I1 to I6 as in the picture bellow.\n<\/li>\n<li>\nYou should only use the values that are written on the label, in this case 5A, 1A, 0.1A, 0.01A, 0.001A, 0.0001A. If you put 0 (default), the range will be chosen automatically by the machine\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.arbin.com\/wp-content\/uploads\/2025\/09\/arbin-instruments-infomation.png\" alt=\"arbin instruments infomation\" width=\"897\" height=\"575\" \/><\/p>\nExtra Control Value1:\n<ul data-indent-level=\"1\">\n<li>\nThis value determines the current pulse length before voltage change is measured. It is determined by your IR test needs (Ohmic resistance or polarization resistance), this value should be at least 100ms.\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.arbin.com\/wp-content\/uploads\/2025\/09\/internal-resistance-steps-arbin.png\" alt=\"internal resistance steps arbin\" width=\"2296\" height=\"525\" \/><\/p>\n<ul data-indent-level=\"1\">\n<li>\nOffset: This is the offset current value (A), at default value 0, the output current pulse will be symmetric.\n<\/li>\n<\/ul>\nAbove is IR measuring with Arbin&#8217;s method. If you want to follow an international standard, you can refer to this article: <a href=\"https:\/\/www.arbin.com\/zh\/%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-arbin-html-%e6%a0%b9%e6%8d%ae-iec-61960-%e6%89%a7%e8%a1%8c%e5%86%85%e9%98%bb%e6%b5%8b%e9%87%8f\/\">\u5982\u4f55\u4f7f\u7528 Arbin \u6839\u636e IEC 61960 \u6267\u884c\u5185\u90e8\u7535\u963b\u6d4b\u91cf\uff1f<\/a>","protected":false},"excerpt":{"rendered":"<p>Mechanism explanations: Arbin&#8217;s MITS software uses pulse method to calculate IR. In order to achieve better accuracy, the software measures the IR 10 times and takes the average. The pulse looks like the graph bellow: IIR is the amplitude value T2 is the extra control value1 I0 is the offset value IR Calculation Formula: IR [&hellip;]<\/p>","protected":false},"author":6,"featured_media":52040,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[412,413],"tags":[415],"class_list":["post-52028","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-application-notes","category-schedules","tag-internal-resistance"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.arbin.com\/zh\/wp-json\/wp\/v2\/posts\/52028","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.arbin.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.arbin.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.arbin.com\/zh\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.arbin.com\/zh\/wp-json\/wp\/v2\/comments?post=52028"}],"version-history":[{"count":5,"href":"https:\/\/www.arbin.com\/zh\/wp-json\/wp\/v2\/posts\/52028\/revisions"}],"predecessor-version":[{"id":55498,"href":"https:\/\/www.arbin.com\/zh\/wp-json\/wp\/v2\/posts\/52028\/revisions\/55498"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.arbin.com\/zh\/wp-json\/wp\/v2\/media\/52040"}],"wp:attachment":[{"href":"https:\/\/www.arbin.com\/zh\/wp-json\/wp\/v2\/media?parent=52028"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.arbin.com\/zh\/wp-json\/wp\/v2\/categories?post=52028"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.arbin.com\/zh\/wp-json\/wp\/v2\/tags?post=52028"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}