{"id":51,"date":"2024-04-03T23:09:24","date_gmt":"2024-04-03T20:09:24","guid":{"rendered":"https:\/\/sisu.ut.ee\/measurement\/33-and-b-type-uncertainty-estimates\/"},"modified":"2024-06-20T08:39:34","modified_gmt":"2024-06-20T05:39:34","slug":"33-and-b-type-uncertainty-estimates","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/measurement\/33-and-b-type-uncertainty-estimates\/","title":{"rendered":"3.3. A and B type uncertainty estimates"},"content":{"rendered":"<p>Carrying out the same measurement operation many times and calculating the standard deviation of the obtained values is one of the most common practices in measurement uncertainty estimation. Either the full measurement or only some parts of it can be repeated. In both cases useful information can be obtained. The obtained standard deviation (or the standard deviation of the mean, explained in section 3.4) is then the standard uncertainty estimate. Uncertainty estimates obtained as standard deviations of repeated measurement results are called\u00a0<strong>A type<\/strong>\u00a0uncertainty estimates. If uncertainty is estimated using some means other than statistical treatment of repeated measurement results then the obtained estimates are called\u00a0<strong>B type<\/strong>\u00a0uncertainty estimates. The other means can be e.g. certificates of reference materials, specifications or manuals of instruments, estimates based on long-term experience, etc.<\/p>\n<p style=\"text-align: center;\"><\/p><div class=\"ratio ratio-16x9 mb-3\"><div class=\"video-placeholder-wrapper video-placeholder-wrapper--16x9\">\n\t\t\t    <div class=\"video-placeholder d-flex justify-content-center align-items-center\">\n\t\t\t        <div class=\"overlay text-white p-2 w-100 text-center d-block justify-content-center align-items-center\">\n\t\t\t            <div>To view third-party content, please accept cookies.<\/div>\n\t\t\t            <button class=\"btn btn-secondary btn-sm mt-1 consent-change\">Change consent<\/button>\n\t\t\t        <\/div>\n\t\t\t    <\/div>\n\t\t\t<\/div>\n<\/div>\n<h4 style=\"text-align: center;\"><strong>Uncertainty estimates of A- and B-type<\/strong><br>\n<a href=\"http:\/\/www.uttv.ee\/naita?id=18165\" target=\"_blank\" rel=\"noopener\">http:\/\/www.uttv.ee\/naita?id=18165<\/a><\/h4>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.youtube.com\/watch?v=jdbx5UMQD9k\" target=\"_blank\" rel=\"noopener\">https:\/\/www.youtube.com\/watch?v=jdbx5UMQD9k<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Carrying out the same measurement operation many times and calculating the standard deviation of the obtained values is one of the most common practices in measurement uncertainty estimation. Either the full measurement or only some parts of it can be &#8230;<\/p>\n","protected":false},"author":14,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-51","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/pages\/51","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/comments?post=51"}],"version-history":[{"count":2,"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/pages\/51\/revisions"}],"predecessor-version":[{"id":714,"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/pages\/51\/revisions\/714"}],"wp:attachment":[{"href":"https:\/\/sisu.ut.ee\/measurement\/wp-json\/wp\/v2\/media?parent=51"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}