The airborne magnetic gradiometer came into use in the middle 1960s.
航空磁梯度仪在六十年代中期交付使用。
2
Gravity gradient is the second order derivative of gravitational potential, which can be observed by satellite gradiometer.
重力梯度为重力位的二阶导数，可以通过星载梯度仪进行观测。
3
Based on the gravity gradient measurement principle of rotating accelerometer gravity gradiometer, an online method of accelerometers scale factor adjusting is proposed in this paper.