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。

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。

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.

在旋转加速度计重力梯度仪的重力梯度测量原理的基础上，本文提出了加速度计标度因子的在线调整方法。