Miniature Three-Axis Induction Magnetometer for Borehole Logging

被引:3
|
作者
Yan, Bin [1 ]
Zhu, Wanhua [1 ]
Zhuang, Xin [1 ]
Liu, Leisong [1 ]
Fang, Guangyou [1 ]
机构
[1] Chinese Acad Sci, Key Lab Electromagnet Radiat & Sensing Technol, Beijing 100864, Peoples R China
基金
国家重点研发计划; 中国国家自然科学基金;
关键词
Coils; Well logging; Sensors; Wires; Sensitivity; Magnetometers; Bandwidth; Magnetic instruments; borehole logging; induction magnetometer; miniature; OPTIMIZATION;
D O I
10.1109/LMAG.2019.2955058
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A miniature three-axis induction magnetometer (IM) for borehole logging was designed, manufactured, and tested. The form of the IM is a cube with 12 coils at edges, which are embedded in a ring cylinder. Thus, the 12 coils are placed along the <italic>x</italic>, <italic>y</italic>, and <italic>z</italic> axes. Each axis consists of four coils that are connected in series. The length, inner diameter, and outer diameter of the ring cylinder are 40, 43, and 64 & x00A0;mm, respectively. The mass of the IM is 450 & x00A0;g. The working frequency bandwidth is set within 1 & x00A0;Hz & x2013;10 & x00A0;kHz. The equivalent induction magnetic noise level of the IM is less than 10 & x00A0;pT & x002F;& x221A;Hz at 100 & x00A0;Hz for three axes. The features and the noise performances of the IM show the potential for its use in borehole logging.
引用
收藏
页数:4
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