Danni Cong and Meiping Wu and Hua Mu and Xiaofeng He and Junxiang Lian and Juliang Cao and Shaokun Cai and Hao Qin Mathematical Modeling of the Working Principle of Gravity Gradient Instrument
797 - 801
2017
11
9
International Journal of Environmental, Chemical, Ecological, Geological and Geophysical Engineering http://waset.org/publications/10007891
http://waset.org/publications/129
World Academy of Science, Engineering and Technology
Gravity field is of great significance in geoscience, national economy and national security, and gravitational gradient measurement has been extensively studied due to its higher accuracy than gravity measurement. Gravity gradient sensor, being one of core devices of the gravity gradient instrument, plays a key role in measuring accuracy. Therefore, this paper starts from analyzing the working principle of the gravity gradient sensor by Newton’s law, and then considers the relative motion between inertial and noninertial systems to build a relatively adequate mathematical model, laying a foundation for the measurement error calibration, measurement accuracy improvement.
International Science Index 129, 2017