超小型绝对重力仪主机系统设计

徐进义,粟多武,王启宇,吉望西,冯金扬,李春剑,吴书清,胡若

计量学报 ›› 2022, Vol. 43 ›› Issue (4) : 489-493.

PDF(1420 KB)
PDF(1420 KB)
计量学报 ›› 2022, Vol. 43 ›› Issue (4) : 489-493. DOI: 10.3969/j.issn.1000-1158.2022.04.09
力学计量

超小型绝对重力仪主机系统设计

  • 徐进义,粟多武,王启宇,吉望西,冯金扬,李春剑,吴书清,胡若
作者信息 +

Design of Host System for Miniature Absolute Gravimeter

  • XU Jin-yi,SU Duo-wu,WANG Qi-yu,JI Wang-xi,FENG Jin-yang,LI Chun-jian,WU Shu-qing,HU Ruo
Author information +
文章历史 +

摘要

为了解决NIM-3A和NIM-3C绝对重力仪传动方式在车载、共基座上使用时会产生自振及磁性材料对重力数据准确度和稳定性影响的问题,设计了一套超小型绝对重力仪主机系统,通过传动托盘的伺服跟踪运动改为托盘先行下落的落体测量过程无其他内部机械运动的测量方式等新设计,消除自振及磁性材料的影响。在主机系统重质量减小至30kg的情况下,测量速度较NIM-3A绝对重力仪的3次/min提高到6次/min,预估测量不确定度由NIM-3C重力仪的30μGal提高到10μGal。

Abstract

To solve the problem that the operation mode of the drive tray of NIM-3A and NIM-3C absolute gravimeters arise self-vibration and the influence of magnetic materials on the accuracy and stability of gravity measurement when they are used on vehicle or common base, a miniature absolute gravimeter host system is designed. The influence of self-vibration and magnetic materials was avoided by changing the previous servo tracking motion of the driving tray to a novel tray driving mode that measures the falling body with no other internal mechanical motion due to the first falling of the tray. In the situation of reducing the weight of the host system to 30kg, the measurement speed can be increased from 3 times/min for NIM-3A to 6 times/min, and the estimated measurement uncertainty decreased from 30μGal in the previous NIM-3C gravimeter to 10μGal.

关键词

计量学 / 绝对重力仪 / 无自振无磁下落 / 传动托盘 / 伺服跟踪运动 / 共基座

Key words

metrology / absolute gravimeter / self-vibration and magnetic free falling / driving tray / servo tracking motion / common base

引用本文

导出引用
徐进义,粟多武,王启宇,吉望西,冯金扬,李春剑,吴书清,胡若. 超小型绝对重力仪主机系统设计[J]. 计量学报. 2022, 43(4): 489-493 https://doi.org/10.3969/j.issn.1000-1158.2022.04.09
XU Jin-yi,SU Duo-wu,WANG Qi-yu,JI Wang-xi,FENG Jin-yang,LI Chun-jian,WU Shu-qing,HU Ruo. Design of Host System for Miniature Absolute Gravimeter[J]. Acta Metrologica Sinica. 2022, 43(4): 489-493 https://doi.org/10.3969/j.issn.1000-1158.2022.04.09
中图分类号: TB934   

参考文献

[1] Niebauer T M, Sasagawa G S, Faller J E, et al. A new generation of absolute gravimeters [J]. Metrologia, 1995, 32:159-180.
[2] Klopping F. FG5X absolute gravimeter user′s manual [EB/OL] (2015-10-26) [2021-07-31].http://microglacoste.com/wp-content/uploads/2018/01/FG5-X-Manual-115060001.pdf/.
[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.
Wu S Q,Li C J, Su D W, et al. The New Development of International Comparison of Absolute Gravimeters[J]. Acta Metrologica Sinica, 2013, 34(6): 545-547.
[4] 吴书清, 李春剑, 徐进义, 等. CCM.G-K2国际比对和NIM-3A型绝对重力仪[J].计量学报, 2017, 38(01):127-28.
Wu S Q,Li C J, Xu J Y, et al. The Comparison of Absolute Gravimeters CCM.G-K2 and NIM-3A Absolute Gravimeter [J]. Acta Metrologica Sinica, 2017, 38(01):127-28.
[5] 刘善良, 吴书清, 冯金扬, 等. 第10届全球绝对重力仪关键比对相对重力测量[J]. 计量学报, 2020, 41(2):198-201.
Liu S L, Wu S Q, Feng J Y, et al. Relative Gravity Measurement Campaign during the 10th International Comparison of Absolute Gravimeters [J]. Acta Metrologica Sinica, 2020,41(2):198-201.
[6] 方永源, 张光远, 黄大伦, 等. 用可移式绝对重力仪测量绝对重力[J]. 科学通报, 1981, 26(22):1361-1364.
Fang Y Y, Zhang G Y, Huang D L, et al. Measurement of absolute gravity using removable absolute gravimeter [J]. Chinese Science Bulletin,1981, 26(22):1361-1364.
[7] Guo Y G, Huang D L, Fang Y Y, et al. Transportable gravimeter for the absolute determination of gravity [J]. Natl Bur Stand (US) Spec Publ, 1984, 617:419-421.
[8] 郭有光, 黄大伦, 方永源, 等. NIM-Ⅱ型可移激光绝对重力仪[J]. 地球物理学报,1988, 31(1):73-81,121.
Guo Y G, Huang D L, Fang Y Y, et al. NIM-Ⅱ removable laser absolute gravimeter [J]. Chinese Journal of Geophysics, 1988, 31(1):73-81,121.
[9] 刘达伦, 吴书清, 徐进义, 等. 绝对重力仪研究的最新进展[J]. 地球物理学报, 2004,19(4):739-742.
Liu D L, Wu S Q, Xu J Y, et al. The new evolution of Absolute Gravimeter [J]. Progress In Geophysics, 2004,19(4):739-742.
[10] 郭有光, 方永源, 李德禧, 等. 高精度绝对重力仪观测研究[J]. 地球物理学报, 1990, 33(4):447-453.
Guo Y G, Fang Y Y, Li D X, et al. High precision absolute gravimeter observation [J]. Chinese Journal of Geophysics, 1990, 33(4):447-453.
[11] 余烨, 胡翔, 王启宇, 等. 绝对重力仪中落体光心与质心间距的精确测量[J]. 计量学报, 2020, 41(7):830-834.
Yu Y,Hu X,Wang Q Y, et al. Precisely Measure the Distance between the Falling Body′s Mass Center and Its Optical Center for Absolute Gravimeters[J]. Acta Metrologica Sinica, 2020, 41(7):830-834.
[12] 李春剑, 粟多武, 吴书清, 等. 光干涉绝对重力仪衍射修正[J], 计量学报, 2017, 38(4):420-423.
Li C J, Su D W,Wu S Q, et al. The Diffraction Correction for Interferometric Absolute Gravimeters[J]. Acta Metrologica Sinica, 2017, 38(4):420-423.
[13] 牟丽爽, 冯金扬, 王启宇, 等. iGrav-012超导重力仪定期格值结果分析[J]. 计量学报, 2019, 40(3): 373-377.
Mou L S, Feng J Y, Wang Q Y, et al. Analysis of Calibration Factor of Superconducting Gravimeter iGrav-012[J]. Acta Metrologica Sinica, 2019, 40(3): 373-377.
[14] 王少凯, 庄伟, 赵阳, 等. NIM原子绝对重力仪研究的初步进展[J]. 计量学报, 2015, 36(6A):141-143.
Wang S K, Zhuang W, Zhao Y, et al. The Preliminary Progress of Cold Atom Absolute Gravimeter at NIM[J]. 2015, 36(6A): 141-143.
[15] Wang S K, Zhao Y, Zhuang W, et al. Shift evaluation of the atomic gravimeter NIM-AGRb1 and its comparison with FG5X[J]. Metrologia, 2018, 55(3):360-365.
[16] 孙和平, 刘清超, 吴书清, 等. 北京地区最新重力潮汐结果及其在检测液核共振效应中的应用[J]. 地球物理学报, 2017, 60(12):4699-4708.
Sun H P, Liu Q C, Wu S Q, et al. The latest gravity tide results in Beijing and its application in detecting resonant effect of the fluid outer core[J]. Chinese Journal of Geophysics, 2017, 60(12):4699-4708.
[17] 粟多武, 吉望西, 胡 刚,等.新疆维吾尔自治区计量部门的重力计量[J]. 计量科学技术, 2020(9):9-12.
Su D W, Ji W X, Hu G, et al. Gravity Measurement by Metrology Department of Xinjiang Uygur Autonomous Region[J]. Metrology Science and Technology, 2020(9):9-12.
[18] 胡华, 伍康, 申磊, 等. 新型高精度绝对重力仪[J]. 物理学报, 2012, 61(9):542-549.
Hu H, Wu K, Shen L, et al. A new high precision absolute gravimeter [J]. Acta Physica Sinica, 2012, 61(9):542-549.
[19] 吴书清, 李天初. 绝对重力仪的技术发展:光学干涉和原子干涉[J]. 光学学报, 2021, 41(1):0102002.
Wu S Q, Li T C. Technical Development of Absolute Gravimeter Laser Interferometry and Atom Interferometry[J]. Acta Optics Sinica, 2021,41(1):0102002.

基金

科技部国家计量科学数据中心项目(29-APT2001-3); 中国计量科学研究院基本科研业务费项目(29-AKYZD2002-3)

PDF(1420 KB)

Accesses

Citation

Detail

段落导航
相关文章

/