北武当观测站水平摆和水管仪观测资料对比分析

Comparative Analysis of the Observation Data of the Horizontal Pendulum and the Water Pipe Instrument in the Beiwudang Observation Station

文章从日动态、年动态、各类干扰形态、异常特征、潮汐因子和同震响应等方面对山西离石台北武当水平摆倾斜和水管仪倾斜观测资料进行对比分析。结果表明,水平摆抗干扰能力优于水管仪;两套仪器观测数据日变和年变形态较清晰、一致性较好;水平摆倾斜仪潮汐因子略大于水管倾斜仪;两套仪器观测数据同震响应形态与幅度基本相同,但在时间上水管仪滞后于水平摆。

This paper makes a comparative analysis of the observation data of Beiwudang horizontal pendulum tilt and water pipe instrument tilt in Lishi station,Shanxi Province,from the aspects of daily dynamics,annual dynamics,various Interference patterns,abnormal characteristics,tidal factors and coseismic responses.The results show that the anti-interference ability of the horizontal pendulum is better than that of the water pipe instrument;the daily and annual deformation states of the two instruments are clear and consistent;the tidal factor of the horizontal pendulum tiltmeter is slightly greater than that of the water pipe tiltmeter;the observation data of the two instruments are basically the same as the seismic response forms and amplitude,but the water pipe instrument lags behind the horizontal pendulum in time.