{"id":261,"date":"2026-07-22T16:11:26","date_gmt":"2026-07-22T08:11:26","guid":{"rendered":"https:\/\/www.ronglitong.com\/?p=261"},"modified":"2026-07-23T13:26:06","modified_gmt":"2026-07-23T05:26:06","slug":"mems-high-precision-closed-loop-accelerometer","status":"publish","type":"post","link":"https:\/\/www.ronglitong.com\/zh-cht\/product\/mems-high-precision-closed-loop-accelerometer\/","title":{"rendered":"MEMS High-Precision Closed-Loop Accelerometer"},"content":{"rendered":"\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"700\" src=\"https:\/\/www.ronglitong.com\/wp-content\/uploads\/2026\/07\/20260723_052538_595.jpg\" alt=\"\" class=\"wp-image-342\" srcset=\"https:\/\/www.ronglitong.com\/wp-content\/uploads\/2026\/07\/20260723_052538_595.jpg 700w, https:\/\/www.ronglitong.com\/wp-content\/uploads\/2026\/07\/20260723_052538_595-300x300.jpg 300w, https:\/\/www.ronglitong.com\/wp-content\/uploads\/2026\/07\/20260723_052538_595-150x150.jpg 150w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/figure>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color has-link-color has-medium-font-size wp-elements-d9b920dd56629ee7924fd6aad26bb44a\"><strong>Product Features<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Adopts closed loop scheme for MEMS accelerometers<\/li>\n\n\n\n<li>High precision better than 0.5\u03bcg (evaluated by Allan variance @10s)<\/li>\n\n\n\n<li>Widely used in high precision inclination, vibration measurement and control applications<\/li>\n<\/ul>\n\n\n\n<p class=\"has-vivid-cyan-blue-color has-text-color has-link-color has-medium-font-size wp-elements-5eff430e999fe0d76fc6b23173133fe6\"><strong>Technical Specifications<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-border-color has-cyan-bluish-gray-border-color\" style=\"border-width:1px\"><tbody><tr><td><strong>Parameter<\/strong><\/td><td><strong>Model SA-03B (Low Range)<\/strong><\/td><td><strong>Model SA-15B (High Range)<\/strong><\/td><\/tr><tr><td>Measurement Range<\/td><td>\u00b1 3g (\u00b15g max)<\/td><td>\u00b1 15g (\u00b125g max)<\/td><\/tr><tr><td>Bias Instability (@25\u00b0C\u00b12\u00b0C, Allan variance)<\/td><td>\u2264 0.5\u03bcg<\/td><td>\u2264 3\u03bcg<\/td><\/tr><tr><td>Bias Temperature Coefficient (-45\u00b0C ~ +75\u00b0C)<\/td><td>\u00b110\u03bcg\/\u00b0C<\/td><td>\u00b130\u03bcg\/\u00b0C<\/td><\/tr><tr><td>Bias Repeatability<\/td><td>20\u03bcg<\/td><td>100\u03bcg<\/td><\/tr><tr><td>Total Bias<\/td><td>\u2264 3mg<\/td><td>\u2264 10mg<\/td><\/tr><tr><td>Scale Factor Error (RMS)<\/td><td colspan=\"2\">\u2264 300 ppm<\/td><\/tr><tr><td>Scale Factor Temperature Coefficient<\/td><td colspan=\"2\">\u2264 0.1%<\/td><\/tr><tr><td>Axis Misalignment (RMS)<\/td><td colspan=\"2\">\u2264 1 mrad<\/td><\/tr><tr><td>Bandwidth<\/td><td colspan=\"2\">200 Hz (-3dB, phase < -40\u00b0)<\/td><\/tr><tr><td>Warm-Up Time<\/td><td colspan=\"2\">< 10s (quick start: 200ms ready)<\/td><\/tr><tr><td>Self-Test (ST)<\/td><td colspan=\"2\">\u00b15%<\/td><\/tr><tr><td>Weight<\/td><td colspan=\"2\">750g<\/td><\/tr><tr><td>Dimensions<\/td><td colspan=\"2\">50 \u00d7 50 \u00d7 50 mm<\/td><\/tr><tr><td>Supply Voltage<\/td><td colspan=\"2\">\u00b19 ~ \u00b115V<\/td><\/tr><tr><td>Power Consumption<\/td><td colspan=\"2\">\u2264 1W<\/td><\/tr><tr><td>Interface<\/td><td colspan=\"2\">RS\u2011422 differential serial (UART or HDLC protocol)<\/td><\/tr><tr><td>Data Update Rate<\/td><td colspan=\"2\">50Hz ~ 1000Hz<\/td><\/tr><tr><td>Built\u2011In Test (BIT)<\/td><td colspan=\"2\">Power\u2011on self test, continuous self test<\/td><\/tr><tr><td>Random Vibration (Operating)<\/td><td colspan=\"2\">4.12g <sub>RMS<\/sub><\/td><\/tr><tr><td>Random Vibration (Non\u2011operating)<\/td><td colspan=\"2\">5.8g <sub>RMS<\/sub><\/td><\/tr><tr><td>Shock (Operating)<\/td><td colspan=\"2\">150g \/ 11ms half\u2011sine<\/td><\/tr><tr><td>Temperature Range (Operating)<\/td><td colspan=\"2\">-45\u00b0C ~ +75\u00b0C<\/td><\/tr><tr><td>Temperature Range (Storage)<\/td><td colspan=\"2\">-55\u00b0C ~ +85\u00b0C<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Product Features Technical Specifications Parameter Model SA-03B (Low Range) Model SA-15B (High Range) Measurement Range \u00b1 3g (\u00b15g max) \u00b1 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":342,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"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":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-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":"","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-4)","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-4)","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-4)","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":[8,4],"tags":[],"class_list":["post-261","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mems-accelerator","category-product"],"_links":{"self":[{"href":"https:\/\/www.ronglitong.com\/zh-cht\/wp-json\/wp\/v2\/posts\/261","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ronglitong.com\/zh-cht\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ronglitong.com\/zh-cht\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ronglitong.com\/zh-cht\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ronglitong.com\/zh-cht\/wp-json\/wp\/v2\/comments?post=261"}],"version-history":[{"count":3,"href":"https:\/\/www.ronglitong.com\/zh-cht\/wp-json\/wp\/v2\/posts\/261\/revisions"}],"predecessor-version":[{"id":343,"href":"https:\/\/www.ronglitong.com\/zh-cht\/wp-json\/wp\/v2\/posts\/261\/revisions\/343"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ronglitong.com\/zh-cht\/wp-json\/wp\/v2\/media\/342"}],"wp:attachment":[{"href":"https:\/\/www.ronglitong.com\/zh-cht\/wp-json\/wp\/v2\/media?parent=261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ronglitong.com\/zh-cht\/wp-json\/wp\/v2\/categories?post=261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ronglitong.com\/zh-cht\/wp-json\/wp\/v2\/tags?post=261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}