{"id":44795,"date":"2019-12-03T10:08:32","date_gmt":"2019-12-03T10:08:32","guid":{"rendered":"https:\/\/www.minerva-calibration.com\/non-classifiee\/absolute-gravity-measurement-measuring-gulfs-hitting-the-coastline\/"},"modified":"2019-12-05T08:27:51","modified_gmt":"2019-12-05T08:27:51","slug":"absolute-gravity-measurement-measuring-gulfs-hitting-the-coast","status":"publish","type":"post","link":"https:\/\/www.minerva-calibration.com\/fr\/etalonnage\/absolute-gravity-measurement-measuring-gulfs-hitting-the-coast\/","title":{"rendered":"Absolute Gravity Measurement &#8211; Measuring waves hitting the coastline"},"content":{"rendered":"<p class=\"Standard\"><span lang=\"EN-GB\">In the pressure calibration world gravity plays an important role when using piston gauges. Gravity is defined as a field equal to for example a magnetic field with the unit Newton per kg.<br \/>\n<\/span><span lang=\"EN-GB\">The simplified formula for calculating pressure defined by a piston gauge is:\u00a0<\/span><img decoding=\"async\" src=\"data:image\/jpeg;base64,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\" width=\"53\" height=\"29\" \/><\/p>\n<p class=\"Standard\"><span lang=\"EN-GB\">As you can see in the above formula gravity <\/span><img decoding=\"async\" src=\"data:image\/jpeg;base64,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\" width=\"11\" height=\"14\" \/><span lang=\"EN-GB\">\u00a0is one of the main components and its accompanying uncertainty affects directly the overall uncertainty in pressure.<\/span><\/p>\n<p class=\"Standard\"><span lang=\"EN-GB\">In order to maintain our very small measurement uncertainties, we have had our gravity recently re-measured by the Delft University of Technology.<\/span><\/p>\n<p><a href=\"https:\/\/www.minerva-calibration.com\/wp-content\/uploads\/2019\/12\/Opbouwen-opstelling.jpeg\"><img decoding=\"async\" class=\"alignleft size-full wp-image-44779\" src=\"https:\/\/www.minerva-calibration.com\/wp-content\/uploads\/2019\/12\/Opbouwen-opstelling.jpeg\" alt=\"\" width=\"1600\" height=\"1200\" srcset=\"https:\/\/www.minerva-calibration.com\/wp-content\/uploads\/2019\/12\/Opbouwen-opstelling.jpeg 1600w, https:\/\/www.minerva-calibration.com\/wp-content\/uploads\/2019\/12\/Opbouwen-opstelling-1280x960.jpeg 1280w, https:\/\/www.minerva-calibration.com\/wp-content\/uploads\/2019\/12\/Opbouwen-opstelling-980x735.jpeg 980w, https:\/\/www.minerva-calibration.com\/wp-content\/uploads\/2019\/12\/Opbouwen-opstelling-480x360.jpeg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1600px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p class=\"Standard\"><span lang=\"EN-GB\"><\/p>\n<p>\nFor the measurements they used the impressive Micro-g FG-5 absolute gravity meter to measure the gravity at one point in our laboratory. Besides the one point also the gravity gradient in the lab both on height and position to assure we can perform the highest quality calibrations for you.<\/p>\n<p><\/span><\/p>\n<p><a href=\"https:\/\/www.minerva-calibration.com\/wp-content\/uploads\/2019\/12\/Uitslag-meting.jpeg\"><img decoding=\"async\" class=\"alignleft size-full wp-image-44783\" src=\"https:\/\/www.minerva-calibration.com\/wp-content\/uploads\/2019\/12\/Uitslag-meting.jpeg\" alt=\"\" width=\"1000\" height=\"750\" srcset=\"https:\/\/www.minerva-calibration.com\/wp-content\/uploads\/2019\/12\/Uitslag-meting.jpeg 1000w, https:\/\/www.minerva-calibration.com\/wp-content\/uploads\/2019\/12\/Uitslag-meting-980x735.jpeg 980w, https:\/\/www.minerva-calibration.com\/wp-content\/uploads\/2019\/12\/Uitslag-meting-480x360.jpeg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1000px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p class=\"Standard\"><span lang=\"EN-GB\">Interesting fact is that during the previous gravity measurements with the FG-5 it was possible to see the waves hitting the coastline which is more than 100 km from our location!<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the pressure calibration world gravity plays an important role when using piston gauges. Gravity is defined as a field equal to for example a magnetic field with the unit Newton per kg. The simplified formula for calculating pressure defined by a piston gauge is:\u00a0 As you can see in the above formula gravity \u00a0is [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":44777,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[157],"tags":[453,349,454,455],"class_list":["post-44795","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-etalonnage","tag-absolute-gravity-measurement-fr","tag-calibration-fr","tag-gravity-fr","tag-laboratory-fr"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Absolute Gravity Measurement - Measuring waves hitting the coastline &#8212; Minerva Metrology &amp; Calibration<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.minerva-calibration.com\/fr\/etalonnage\/absolute-gravity-measurement-measuring-gulfs-hitting-the-coast\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Absolute Gravity Measurement - Measuring waves hitting the coastline &#8212; Minerva Metrology &amp; Calibration\" \/>\n<meta property=\"og:description\" content=\"In the pressure calibration world gravity plays an important role when using piston gauges. Gravity is defined as a field equal to for example a magnetic field with the unit Newton per kg. The simplified formula for calculating pressure defined by a piston gauge is:\u00a0 As you can see in the above formula gravity \u00a0is [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.minerva-calibration.com\/fr\/etalonnage\/absolute-gravity-measurement-measuring-gulfs-hitting-the-coast\/\" \/>\n<meta property=\"og:site_name\" content=\"Minerva Metrology &amp; Calibration\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/minervametrology\/\" \/>\n<meta property=\"article:published_time\" content=\"2019-12-03T10:08:32+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2019-12-05T08:27:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.minerva-calibration.com\/wp-content\/uploads\/2019\/12\/Opstelling.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"750\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Jasper\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Minerva_Cal\" \/>\n<meta name=\"twitter:site\" content=\"@Minerva_Cal\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jasper\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.minerva-calibration.com\\\/fr\\\/etalonnage\\\/absolute-gravity-measurement-measuring-gulfs-hitting-the-coast\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.minerva-calibration.com\\\/fr\\\/etalonnage\\\/absolute-gravity-measurement-measuring-gulfs-hitting-the-coast\\\/\"},\"author\":{\"name\":\"Jasper\",\"@id\":\"https:\\\/\\\/www.minerva-calibration.com\\\/#\\\/schema\\\/person\\\/8b373b37d978b836e31b76303cdef0c4\"},\"headline\":\"Absolute Gravity Measurement &#8211; 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