{"id":812,"date":"2018-11-27T12:53:17","date_gmt":"2018-11-27T04:53:17","guid":{"rendered":"http:\/\/www.ftune.com.cn\/?p=812"},"modified":"2025-12-11T14:19:29","modified_gmt":"2025-12-11T06:19:29","slug":"%e6%a1%88%e4%be%8b-case-%e7%bb%9d%e5%af%b9%e9%87%8d%e5%8a%9b%e4%bb%aa%e9%87%8e%e5%a4%96%e9%87%8d%e5%8a%9b%e5%8f%b0%e7%ab%99%e5%ae%9a%e7%82%b9%e6%b5%8b-%e6%96%b0%e7%96%86","status":"publish","type":"post","link":"http:\/\/www.ftune.com.cn\/en\/%e6%a1%88%e4%be%8b-case-%e7%bb%9d%e5%af%b9%e9%87%8d%e5%8a%9b%e4%bb%aa%e9%87%8e%e5%a4%96%e9%87%8d%e5%8a%9b%e5%8f%b0%e7%ab%99%e5%ae%9a%e7%82%b9%e6%b5%8b-%e6%96%b0%e7%96%86\/","title":{"rendered":"Absolute gravimeter field gravity station fixed point measurement - Xinjiang"},"content":{"rendered":"

Absolute gravimeter field gravity station fixed point measurement-Xi'an <\/a>(Other fixed-point measurements)<\/p>\n\n\n\n

WF-T-1 Absolute Gravimeter (Hardware and Software Introduction)<\/a><\/p>\n\n\n\n

From August 30, 2018 to September 9, 2018, the T-1 absolute gravimeter conducted absolute gravity measurement experiments at the Urumqi GNSS reference station and the Altay GNSS reference station in Xinjiang. The Urumqi measurement point was continuously observed for 52 hours, while the Altay measurement point was continuously observed for 28 hours. The following images show the gravity observation sites of the T-1 absolute gravimeter at the Urumqi reference station and the Altay reference station, respectively.<\/p>\n\n\n\n

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T-1 Absolute Gravimeter at the Urumqi GNSS Reference Station in Xinjiang (August 30, 2018)<\/p>\n\n\n

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T-1 Absolute Gravimeter at the Altay GNSS Reference Station in Xinjiang (September 8, 2018)<\/p>\n\n\n\n

The T-1 absolute gravimeter conducted gravity observations at the Urumqi GNSS reference station from 04:17:18 UTC on August 30, 2018, to 07:24:07 on September 1, 2018. A total of 103 sets of data were collected, with 2 sets per hour, and each set was measured consecutively 16 times (i.e., the free-fall was repeated 16 times in succession). The measurement results are shown in the figure below. The results indicate that the instrument's status was basically stable, and the group means of the measurements without tidal corrections corresponded well with theoretical tides.<\/p>\n\n\n\n

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Measurement results of the T-1 absolute gravimeter at the Urumqi GNSS reference station (corrected for solid Earth tides) Urumqi data (52 hours)<\/p>\n\n\n\n

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Measurement results of the T-1 absolute gravimeter at the Urumqi GNSS reference station (unadjusted for solid Earth tides)<\/p>\n\n\n\n

The T-1 absolute gravimeter's gravity observations at the Altay GNSS reference station started at 12:20:06 UTC on 2018-09-07 and ended at 17:03:40 on 2018-09-08, with a total of 57 sets of data collected, 2 sets per hour, each set measured continuously 16 times. On the second day of measurement in Altay, rainfall occurred. Due to the relatively dangerous location of the observation point and the possibility of lightning during rain, the measurement time was shortened to ensure the safety of the instrument. The measurement results are shown in the following figure. The results indicate that the instrument was basically stable, and the uncorrected tidal group mean of the measurement data agrees well with the theoretical tides.<\/p>\n\n\n

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Measurement Results of the T-1 Absolute Gravimeter at the Altay GNSS Reference Station (Corrected for Solid Earth Tides)<\/p>\n\n\n\n

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Measurement Results of the T-1 Absolute Gravimeter at the Altay GNSS Reference Station (Uncorrected for Solid Earth Tides)<\/p>\n\n\n\n

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T-1 Absolute Gravimeter at the Urumqi GNSS Reference Station Observation Site<\/p>\n\n\n\n

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T-1 Absolute Gravimeter at the Mulele GNSS Reference Station Observation Site<\/p>\n\n\n\n

T-1 Absolute Gravimeter at the Urumqi GNSS Reference Station Observation Site<\/p>\n\n\n

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\"\"<\/figure>\n<\/div>\n\n\n

<\/p>\n\n\n\n

Measurement results of the T-1 absolute gravimeter at the Urumqi GNSS reference station (unadjusted for solid Earth tides)<\/p>\n\n\n

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Measurement results of the T-1 absolute gravimeter at the Urumqi GNSS reference station (corrected for solid Earth tides) Urumqi data (52 hours)<\/p>\n\n\n

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\"\"<\/figure>\n<\/div>\n\n\n

Measurement results of the T-1 absolute gravimeter at the Urumqi GNSS reference station (unadjusted for solid Earth tides)<\/p>\n\n\n\n

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Measurement results of the T-1 absolute gravimeter at the Urumqi GNSS reference station (corrected for solid Earth tides) Urumqi data (52 hours)<\/p>\n\n\n\n

\"\"<\/figure>","protected":false},"excerpt":{"rendered":"

\u7edd\u5bf9\u91cd\u529b\u4eea\u91ce\u5916\u91cd\u529b\u53f0\u7ad9 \u2026<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,9],"tags":[],"class_list":["post-812","post","type-post","status-publish","format-standard","hentry","category-8","category-9"],"_links":{"self":[{"href":"http:\/\/www.ftune.com.cn\/en\/wp-json\/wp\/v2\/posts\/812","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.ftune.com.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.ftune.com.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.ftune.com.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.ftune.com.cn\/en\/wp-json\/wp\/v2\/comments?post=812"}],"version-history":[{"count":13,"href":"http:\/\/www.ftune.com.cn\/en\/wp-json\/wp\/v2\/posts\/812\/revisions"}],"predecessor-version":[{"id":1459,"href":"http:\/\/www.ftune.com.cn\/en\/wp-json\/wp\/v2\/posts\/812\/revisions\/1459"}],"wp:attachment":[{"href":"http:\/\/www.ftune.com.cn\/en\/wp-json\/wp\/v2\/media?parent=812"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.ftune.com.cn\/en\/wp-json\/wp\/v2\/categories?post=812"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.ftune.com.cn\/en\/wp-json\/wp\/v2\/tags?post=812"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}