A high-precision borehole gravimeter

Geodesy and Geodynamics

Gong Ping¹  Yao Zhigui¹  Wei Jin¹  Li Jiaming¹  Wen Xingwei¹ 

[1] Institute of Seismology, China Earthquake Administration, Wuhan 430071, China;

关键词: borehole gravimeter;    working principle;    structure;    broad band;   

DOI  :  10.3724/SP.J.1246.2011.00076

来源: DOAJ

【 摘 要 】

The paper describes the working principle and structure of a newly designed high-precision (micro-gal) gravimeter, which is basically a vertically suspending spring-weight system, using a highly sensitive capacitance sensor of movement in a controlled temperature environment in a borehole and a multi-frequency output for both earth-tide and earthquake monitoring. The preliminary test indicated that, while in a stabilization process, it had met all the technical requirements for a relative gravimeter used for earth tide and earthquake monitoring.

【 授权许可】

Unknown