CCM.G-K2国际比对和NIM-3A型绝对重力仪

吴书清,李春剑,徐进义,粟多武,冯金扬,吉望西

计量学报 ›› 2017, Vol. 38 ›› Issue (1) : 127-128.

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PDF(265 KB)
计量学报 ›› 2017, Vol. 38 ›› Issue (1) : 127-128. DOI: 10.3969/j.issn.1000-1158.2017.01.27
力学计量

CCM.G-K2国际比对和NIM-3A型绝对重力仪

  • 吴书清,李春剑,徐进义,粟多武,冯金扬,吉望西
作者信息 +

The Comparison of Absolute Gravimeters CCM.G-K2 and NIM-3A Absolute Gravimeter

  • WU Shu-qing,LI Chun-Jian,XU Jin-yi,SU Duo-wu,FENF Jin-yang,JI Wang-xi
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文章历史 +

摘要

基于激光干涉法的自由落体原理,中国计量科学研究院研制了最新的NIM-3A型绝对重力仪。该仪器参加了第9届全球绝对重力仪国际比对CCM.G-K2,根据公布的国际比对结果,NIM-3A型绝对重力仪的测量结果与参比各仪器的测量结果达到了等效一致,测量结果的合成标准不确定度为5.3 μGal。

Abstract

Based on laser interference technology and free-fall theory, the National Institute of Metrology (China) has developed the latest NIM-3A type absolute gravimeter.This instrument has participated in the 9th international comparison of absolute gravimetries CCM.G-K2,according to the published result of CCM.G-K2,the NIM-3A type absolute gravimeter with the combined standard uncertainty of 5.3 μGal is agreed with the key comparison reference value and the degree of equivalence is gained.

关键词

计量学 / 绝对重力仪 / 国际比对 / 不确定度

Key words

metrology / absolute gravimeter / international comparison / uncertainty

引用本文

导出引用
吴书清,李春剑,徐进义,粟多武,冯金扬,吉望西. CCM.G-K2国际比对和NIM-3A型绝对重力仪[J]. 计量学报. 2017, 38(1): 127-128 https://doi.org/10.3969/j.issn.1000-1158.2017.01.27
WU Shu-qing,LI Chun-Jian,XU Jin-yi,SU Duo-wu,FENF Jin-yang,JI Wang-xi. The Comparison of Absolute Gravimeters CCM.G-K2 and NIM-3A Absolute Gravimeter[J]. Acta Metrologica Sinica. 2017, 38(1): 127-128 https://doi.org/10.3969/j.issn.1000-1158.2017.01.27
中图分类号: TB93   

参考文献

[1]Jiang Z,Pálinká? V,Arias F E , et al. The 8th International Comparison of Absolute Gravimeters 2009: the first Key Comparison (CCM.G-K1) in the field of absolute gravimetry[J]. Metrologia,2012,49(6): 666.
[2]吴书清,葛春雨,刘达伦,等.基于FPGA的重力仪干涉条纹和时间间隔计数[J].计量学报,2010,31(6):530-532.
[3]吴书清,李春剑,粟多武,等.绝对重力仪国际比对新动态[J].计量学报,2013,34(6):545-547.
[4]Francis O,Baumann H,Ullrich C,et al.CCM.G-K2 key comparison[J].Metrologia,2015,52:07009.

基金

国家质检总局量传项目(22-AJG1403)

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