The methods, Whose measuring accuracy is higher than the inertial balance, have some properties such as clear principle, simple method and convenient operation.
这几种方法都具有原理清晰、方法简单、操作方便的特点，其测量精度都高于惯性称。
2
Sea gravimeter is an important equipment for improving the precision of navy inertial navigation systems. The servo loop of gravity sensor determines its precision and dynamic properties.