{"id":1411,"date":"2009-05-12T16:42:01","date_gmt":"2009-05-12T23:42:01","guid":{"rendered":""},"modified":"2025-07-25T06:52:13","modified_gmt":"2025-07-25T13:52:13","slug":"1411","status":"publish","type":"post","link":"https:\/\/www.vernier.com\/til\/1411","title":{"rendered":"25-g Accelerometer Troubleshooting and FAQs"},"content":{"rendered":"<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<h3 class=\"wp-block-heading\"><a href=\"\/product\/25-g-accelerometer\/\">25-g Accelerometer<\/a> (<nobr>ACC-BTA<\/nobr>)<\/h3>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<p> <a href=\"\/manuals\/ACC-BTA\">Specifications and User Guide<\/a><\/p>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/www.vernier.com\/wp-content\/uploads\/2019\/11\/product.acc-bta._hero.001-1-scaled.jpg\" alt=\"\"\/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\">Troubleshooting<\/h3>\n<ul class=\"wp-block-list\">\n<li><b>Primary Test:<\/b> Make sure that the line marked by the arrow on the label of the sensor is positioned properly to measure the desired acceleration.<\/li>\n<li><b>Secondary Test:<\/b> Position the sensor to read gravity effect and confirm that the reading is sufficiently precise.<\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Additional Troubleshooting<\/h3>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/til\/677\/\">What is the difference between your accelerometers?<\/a><\/li>\n<li><a href=\"\/til\/3536\/\">Can I use an accelerometer to measure velocity or position? <\/a><\/li>\n<li><a href=\"\/til\/3706\/\">What does an accelerometer actually measure?<\/a><\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Specifications<\/h3>\n<ul class=\"wp-block-list\">\n<li>Power: 30 mA @ 5VDC<\/li>\n<li>Range: +\/-245 m\/s\u00b2 (+\/-25g)<\/li>\n<li>Accuracy: +\/-2.45 m\/s\u00b2 (+\/- 0.25g)<\/li>\n<li>Frequency Response: 0 to 100 Hz<\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Calibration<\/h3>\n<p>Calibrate? Usually, no. The sensor is set to the stored calibration before shipping. For some experiments, you may use the stored calibration and zero the sensor before collecting data. For more information, see <a href=\"\/til\/4011\/\">How do I calibrate my sensor?<\/a><\/p>\n<h4 class=\"wp-block-heading\"><strong>HORIZONTAL DIRECTION<\/strong><\/h4>\n<p>If you wish to calibrate the sensor for acceleration in the horizontal direction, you will conduct a two-point calibration.<\/p>\n<ul class=\"wp-block-list\">\n<li><strong>First point<\/strong><br \/>\u26ac position the sensor with the arrow pointing down<br \/>\u26ac define this reading as -9.8 m\/s\u00b2 or -1 g.<\/li>\n<li><strong>Second point<\/strong><br \/>\u26ac rotate the sensor so that the arrow points up<br \/>\u26ac define this reading as +9.8 m\/s\u00b2 or +1 g.<\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h4 class=\"wp-block-heading\"><strong>VERTICAL DIRECTION<\/strong><\/h4>\n<p>If you wish to calibrate the sensor for acceleration in the vertical direction, first decide which direction (up or down) will be the positive direction. Our recommendation is to consider up as positive and conduct the experiment with the vertical direction arrow pointing vertically upward.<\/p>\n<ul class=\"wp-block-list\">\n<li><strong>First point<\/strong><br \/>\u26ac position the sensor with the arrow pointing upward<br \/>\u26ac define this reading as 0 m\/s\u00b2 or 0 g<\/li>\n<li><strong>Second point<\/strong><br \/>\u26ac rotate the sensor so that the arrow points downward <br \/>\u26ac define this reading as -19.6 m\/s\u00b2 or -2 g<\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Related Products<\/h3>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/product\/low-g-accelerometer\/\">Low-g Accelerometer<\/a> (<nobr>LGA-BTA<\/nobr>)<\/li>\n<li><a href=\"\/product\/3-axis-accelerometer\/\">3-Axis Accelerometer<\/a> (<nobr>3D-BTA<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-acceleration-sensor\/\">Go Direct<sup>&reg;<\/sup> Acceleration Sensor<\/a> (<nobr>GDX-ACC<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-force-and-acceleration-sensor\/\">Go Direct<sup>&reg;<\/sup> Force and Acceleration Sensor<\/a> (<nobr>GDX-FOR<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-sensor-cart\/\">Go Direct<sup>&reg;<\/sup> Sensor Cart<\/a> (<nobr>GDX-CART-G<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-sensor-cart\/\">Go Direct<sup>&reg;<\/sup> Sensor Cart<\/a> (<nobr>GDX-CART-Y<\/nobr>)<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Specifications and User Guide Troubleshooting Additional Troubleshooting Specifications Calibration Calibrate? Usually, no. The sensor is set to the stored calibration before shipping. For some experiments,&#8230;<\/p>\n","protected":false},"author":44,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[368,272,1827,720],"class_list":["post-1411","post","type-post","status-publish","format-standard","hentry","tag-acc-bta","tag-acc-din","tag-accmain","tag-maintil"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/1411","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/users\/44"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/comments?post=1411"}],"version-history":[{"count":0,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/1411\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/media?parent=1411"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/categories?post=1411"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/tags?post=1411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}