石英弹簧重力仪(ZS型、CG_2型)是目前我国地震、地球物理勘探及测绘部门进行野外流动重力观测的主要仪器。虽然仪器有温度补偿措施,但在野外作业时,环境温度不可能始终在仪器温度补偿点附近,因而补偿是不完全的。大量实测资料表明,这一类型仪器格值及测量精度受环境温度的影响较大。因此,在这种类 Quartz spring gravimeter (ZS type, CG_2 type) is the main instrument of field gravity observation in the field of earthquake, geophysical exploration and surveying and mapping in our country at present. Although the instrument has temperature compensation, it is not possible to compensate for the ambient temperature in the field when the ambient temperature can not always be near the instrument temperature compensation point. A large number of measured data show that this type of instrument grid values ​​and measurement accuracy by the ambient temperature greater impact. So in this category