{"id":2434,"date":"2012-08-14T20:45:33","date_gmt":"2012-08-15T03:45:33","guid":{"rendered":""},"modified":"2020-08-05T12:23:51","modified_gmt":"2020-08-05T19:23:51","slug":"2434","status":"publish","type":"post","link":"https:\/\/www.vernier.com\/til\/2434","title":{"rendered":"Why can’t I see angular and tangential velocity data using the Centripetal Force Apparatus with a photogate? (Advanced Physics experiment # 12A)"},"content":{"rendered":"

There is a known limitation of the LabPro interface such that data from the photogate will not display until the experiment ends. As a result, you must not click stop before data collection ends on its own.<\/p>\n

If you click Stop during data collection, no photogate state data, and angular and tangential velocity data will be stored.<\/p>\n

To collect data with the LabPro, you must allow the data collection to run for the entire specified duration. If you are using the prepared files found at:
\nhttps:\/\/www.vernier.com\/accessories\/cfa\/<\/a> or the file included with Advanced Physics with Vernier — Mechanics<\/i><\/a> (PHYS-AM<\/nobr>), you may want to adjust the data collection to a shorter duration, such as 30 seconds. Choose Experiment > Data Collection and change the value for Length.<\/p>\n

This issue does not affect LabQuest interfaces (any model).<\/p>","protected":false},"excerpt":{"rendered":"

There is a known limitation of the LabPro interface such that data from the photogate will not display until the experiment ends. As a result,…<\/p>\n","protected":false},"author":8976,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[2287,4027,166,4025,4026],"class_list":["post-2434","post","type-post","status-publish","format-standard","hentry","tag-cfa","tag-dfs-dfs-bta","tag-labpro","tag-phys-am","tag-vpg-vpg-btd"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/2434","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\/8976"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/comments?post=2434"}],"version-history":[{"count":0,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/2434\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/media?parent=2434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/categories?post=2434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/tags?post=2434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}