姑咱台和乡城台VS型垂直摆倾斜仪对比分析

对姑咱台和乡城台Vs型垂直摆倾斜仪的安装观测环境、仪器运行情况、观测资料的连续性、稳定性、可靠性和观测精度、在中国地震局和四川省地震局观测资料评比中名次等方面进行了对比分析，并对造成观测资料连续率下降、标定精度、观测内精度偏低的原因进行了简单的分析，为台站日常的观测工作和仪器维护提供了一些有益的参考。

Comparison of the observation data of the Model VS tilt meters with the vertical pendulum in both Guzha and Xiangchen Seismic Station

The observation environment, the instrument operation condition, stability, continuity, reliability and precise of the Model VS vertical pendulum tilt meters installed in both Kangdin and Xiangchen Seismic Stations are described and discussed. The solid earth tide can be recorded clearly by both seismic stations meters. The meter ob- servation precision in Guzha Seismic Station is 0.004s and that of Xianchen Seismic Station is 0. 005 s. The daily shift of meter in Xiangchen Seismic Station is bigger than that in Guzha Seismic Sation. But the environment inter- fere of Xiangchen Seismic Station is smaller than that of Guzha Seismic Station.