{"id":107,"date":"2022-05-12T20:59:29","date_gmt":"2022-05-12T20:59:29","guid":{"rendered":"https:\/\/engprojects.tcnj.edu\/vertigone\/?page_id=107"},"modified":"2022-05-13T14:52:01","modified_gmt":"2022-05-13T14:52:01","slug":"verification-testing","status":"publish","type":"page","link":"https:\/\/engprojects.tcnj.edu\/vertigone\/verification-testing\/","title":{"rendered":"Verification Testing"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><strong>Testing Frame<\/strong><\/h2>\n\n\n\n<p>Through the verification and validation testing of the Epley Maneuver System, we were given the opportunity to create a complementary tool exclusively for testing this device and ensuring that it works as stated. The frame is easily adjustable and manipulated to mimic the position of a person performing the Epley maneuver. <\/p>\n\n\n\n<p class=\"has-text-align-center\"><img decoding=\"async\" width=\"245px;\" height=\"428px;\" src=\"https:\/\/lh6.googleusercontent.com\/KnvchOBhmYNNUCcLYpvtQqrf3LZEDU5jIGYmYo6j098uPJXcIEyVqVRKwfFmkGiyXFh8f_3SHDFO52NsDb0naNEbGXutQT3OZfPb_zY7G6iUkRcIW9FF7EAQH8W4QnkUz2pptPvX4tGL-0qysQM66Q\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Design Input 1 &#8211; Verification<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Device was positioned so error conditions in position and time occur<ul><li>Similar process to that of Design Input 3<\/li><\/ul><\/li><li>Device positioned just outside of target angle so errors would occur<\/li><li>Difference between this angle and the target angle recorded<\/li><li>No resolution for this spec<ul><li>Device is still able to accurately measure errors within the range of 10 to 11 degrees<\/li><\/ul><\/li><li>One tailed one sample t-test used<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-13.png\" alt=\"\" class=\"wp-image-108\" width=\"385\" height=\"58\" srcset=\"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-13.png 716w, https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-13-300x46.png 300w\" sizes=\"auto, (max-width: 385px) 100vw, 385px\" \/><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>When time error occurred also recorded<ul><li>&lt; 30s and &gt; 120s<\/li><\/ul><\/li><li>Device reported errors within the expected time frame<\/li><li>One tailed t-test compared with 30s and 120s respectively<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-14.png\" alt=\"\" class=\"wp-image-109\" width=\"387\" height=\"85\" srcset=\"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-14.png 716w, https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-14-300x67.png 300w\" sizes=\"auto, (max-width: 387px) 100vw, 387px\" \/><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Design Input 2 &#8211; Verification<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Device weight was 0.58 lbs<ul><li>Weighed 3 times and averaged<\/li><\/ul><\/li><li>One tailed one sample t-test done<ul><li>Compared to max weight of 4 lbs<\/li><li>P &lt; 0.05<\/li><\/ul><\/li><li>Device weight significantly different than 4lbs<ul><li>Passes verification<\/li><\/ul><\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-15.png\" alt=\"\" class=\"wp-image-110\" width=\"197\" height=\"84\" srcset=\"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-15.png 349w, https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-15-300x127.png 300w\" sizes=\"auto, (max-width: 197px) 100vw, 197px\" \/><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Design Input 3 &#8211; Verification<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Simulated Head used to record different angles<\/li><li>100 data points recorded<\/li><li>0, 90, 180\u00b0 on x-axis<\/li><li>-50, 85, 245\u00b0 on y-axis<\/li><li>65, 145, 225\u00b0 on z-axis<\/li><li>Difference between target angle and recorded angle taken<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-16.png\" alt=\"\" class=\"wp-image-111\" width=\"674\" height=\"218\" srcset=\"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-16.png 770w, https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-16-300x97.png 300w, https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-16-768x249.png 768w\" sizes=\"auto, (max-width: 674px) 100vw, 674px\" \/><figcaption>Example testing procedure for Design Input 3<\/figcaption><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Angles chosen 20 degrees past range of Epley Maneuver and middle<\/li><li>Wilcoxon test used<ul><li>Data not normally distributed<\/li><li>Compared to see if difference was less than 1<\/li><\/ul><\/li><li>All angles pass with p &lt; 0.05<\/li><li>Device is able to measure target angles within 1 degree<\/li><\/ul>\n\n\n\n<p class=\"has-text-align-center\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/DLaWzG53ZgMbOP6pFf9jCAZhNjXKP6uYWKlbmntSi_-3qL5s6IKdy7prFszNzMxZ2-ptASohOwh3zCa3Ga2oADvg_Og4M99xsSvI_ygQDqUuSc3LUqO39ObJEMkGCP68iZKK0loAr9iDrRk7ZrB4eQ\" style=\"width: 440px;\"><\/p>\n\n\n\n<p>Average difference from target angle with error bars and target values (p &lt; 0.05)<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Design Input 4 &#8211; Verification<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Device positioned or timed into different error conditions<ul><li>Utilizing simulated head similar to design input 3<\/li><li>Time taken for feedback to be administered recorded (n = 10)<\/li><\/ul><\/li><li>Values averaged<ul><li>One tailed one sample t-test performed<\/li><li>Compared to hypothetical mean of 3 seconds<\/li><\/ul><\/li><li>Less than 1\/10th the time per step in the maneuver<\/li><li>Passes verification for design input 4<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-17.png\" alt=\"\" class=\"wp-image-112\" width=\"365\" height=\"121\" srcset=\"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-17.png 715w, https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-17-300x100.png 300w\" sizes=\"auto, (max-width: 365px) 100vw, 365px\" \/><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Design Input 6 &#8211; Verification<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Baud rate of 9600 confirmed to be used in Arduino<ul><li>Corresponds to 960 bytes\/s<\/li><li>7.68 kbps<\/li><\/ul><\/li><li>Fails verification for design input 6<\/li><li>Due to the nature of how Arduino transmits data this was unable to be reached<\/li><li>Using a different microcontroller chosen in the future would fix this<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Design Input 7 &#8211; Verification<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Device was powered on either for five hours or until battery died<\/li><li>Power lasted for the full five hour period<\/li><li>Device passes verification for design input 7<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Design Input 8 &#8211; Verification<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Minimum and maximum adjustable values measured (n = 3)<ul><li>Done for head circumference and bitragion coronal arch<\/li><\/ul><\/li><li>One tailed one sample t-test performed for minimum and maximum values<\/li><li>Device passes verification for design input 8<\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-18.png\" alt=\"\" class=\"wp-image-113\" width=\"396\" height=\"153\" srcset=\"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-18.png 775w, https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-18-300x116.png 300w, https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-18-768x296.png 768w\" sizes=\"auto, (max-width: 396px) 100vw, 396px\" \/><\/figure><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Design Input 10 &#8211; Verification<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Leakage current testing done in accordance with IEC 60601<ul><li>Minimum earth leakage current: 5 mA<\/li><li>Minimum touch current: 0.1 mA<\/li><\/ul><\/li><li>5 Measurements taken each<\/li><li>One tailed one sample t-test performed<\/li><\/ul>\n\n\n\n<p class=\"has-text-align-center\"><img decoding=\"async\" width=\"419px;\" height=\"182px;\" src=\"https:\/\/lh5.googleusercontent.com\/btewxKEkoJz0ZYs2ag9K4_uQQHRL9LBWcEU3QGMMX81mxH710UWieIMZ3tE1Tld3IA8JbEYOxnJa6jYjynJQjmPflRYihsWDcC7txPePEN0W_KRnEbV4opiK0ehbnsAgZsQUIhVJhb1FdXpbl3Wy6w\"><\/p>\n\n\n\n<p>Body model used to test touch current<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-19.png\" alt=\"\" class=\"wp-image-114\" width=\"371\" height=\"114\" srcset=\"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-19.png 599w, https:\/\/engprojects.tcnj.edu\/vertigone\/wp-content\/uploads\/sites\/182\/2022\/05\/image-19-300x92.png 300w\" sizes=\"auto, (max-width: 371px) 100vw, 371px\" \/><\/figure><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Testing Frame Through the verification and validation testing of the Epley Maneuver System, we were given the opportunity to create a complementary tool exclusively for testing this device and ensuring that it works as stated. The frame is easily adjustable and manipulated to mimic the position of a person performing the Epley maneuver. Design Input &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/engprojects.tcnj.edu\/vertigone\/verification-testing\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Verification Testing&#8221;<\/span><\/a><\/p>\n","protected":false},"author":354,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ngg_post_thumbnail":0,"footnotes":""},"class_list":["post-107","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-json\/wp\/v2\/pages\/107","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-json\/wp\/v2\/users\/354"}],"replies":[{"embeddable":true,"href":"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-json\/wp\/v2\/comments?post=107"}],"version-history":[{"count":0,"href":"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-json\/wp\/v2\/pages\/107\/revisions"}],"wp:attachment":[{"href":"https:\/\/engprojects.tcnj.edu\/vertigone\/wp-json\/wp\/v2\/media?parent=107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}