{"id":1633,"date":"2026-01-26T11:45:37","date_gmt":"2026-01-26T03:45:37","guid":{"rendered":"https:\/\/jtlcnc.com\/?p=1633"},"modified":"2026-01-27T08:37:54","modified_gmt":"2026-01-27T00:37:54","slug":"calibration-and-maintenance-strategies-for-granite-surface-plates","status":"publish","type":"post","link":"https:\/\/jtlcnc.com\/ar\/2026\/01\/26\/calibration-and-maintenance-strategies-for-granite-surface-plates\/","title":{"rendered":"\u0627\u0633\u062a\u0631\u0627\u062a\u064a\u062c\u064a\u0627\u062a \u0627\u0644\u0645\u0639\u0627\u064a\u0631\u0629 \u0648\u0627\u0644\u0635\u064a\u0627\u0646\u0629 \u0644\u0623\u0644\u0648\u0627\u062d \u0633\u0637\u062d \u0627\u0644\u062c\u0631\u0627\u0646\u064a\u062a \u0627\u0644\u062c\u0631\u0627\u0646\u064a\u062a\u064a\u0629"},"content":{"rendered":"<p>Keywords: Granite surface plate calibration, autocollimator, laser interferometer, uncertainty evaluation<br>Proper calibration and maintenance are critical to preserving plate accuracy:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Calibration Methods:\n<ul class=\"wp-block-list\">\n<li>Autocollimators: Provide angular measurements with 0.05&#8243; resolution.<\/li>\n\n\n\n<li>Laser Systems: Enable dynamic flatness profiling via interferometric analysis.<\/li>\n\n\n\n<li>CMMs: Use tactile probing for point-by-point verification.<br>A study comparing these methods found autocollimators fastest (5 min\/plate) but CMMs most accurate (&lt;0.3\u03bcm uncertainty).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Maintenance Protocols:\n<ul class=\"wp-block-list\">\n<li>Cleaning: Use pH-neutral detergents to avoid chemical etching.<\/li>\n\n\n\n<li>Storage: Maintain ambient temperatures (20\u00b12\u00b0C) and humidity (45-55% RH).<\/li>\n\n\n\n<li>Recalibration: Biannual checks are recommended; plates in high-use environments may require quarterly validation.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p>Uncertainty budgets, calculated using GUM principles, should include contributions from measurement equipment, environmental factors, and operator variability.<\/p>","protected":false},"excerpt":{"rendered":"<p>Keywords: Granite surface plate calibration, autocollimator, laser interferometer, uncertainty evaluationProper calibration and maintenance are critical to preserving plate accuracy: Uncertainty budgets, calculated using GUM principles, should include contributions from measurement equipment, environmental factors, and operator variability.<\/p>","protected":false},"author":1,"featured_media":1346,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[35],"tags":[],"class_list":["post-1633","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"taxonomy_info":{"category":[{"value":35,"label":"NEWS"}]},"featured_image_src_large":["https:\/\/jtlcnc.com\/wp-content\/uploads\/2026\/01\/\u82b1\u5c97\u5ca9\u6784\u4ef610g-1024x768.jpg",1024,768,true],"author_info":{"display_name":"jinxing6611@gmail.com","author_link":"https:\/\/jtlcnc.com\/ar\/author\/jtlcnc\/"},"comment_info":0,"category_info":[{"term_id":35,"name":"NEWS","slug":"news","term_group":0,"term_taxonomy_id":35,"taxonomy":"category","description":"","parent":0,"count":121,"filter":"raw","cat_ID":35,"category_count":121,"category_description":"","cat_name":"NEWS","category_nicename":"news","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/posts\/1633","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/comments?post=1633"}],"version-history":[{"count":2,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/posts\/1633\/revisions"}],"predecessor-version":[{"id":1638,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/posts\/1633\/revisions\/1638"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/media\/1346"}],"wp:attachment":[{"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/media?parent=1633"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/categories?post=1633"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jtlcnc.com\/ar\/wp-json\/wp\/v2\/tags?post=1633"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}