银川地震台水管仪固体潮干扰分析

Analysis of water tube tiltmeter solid tide interference at Yinchuan Seismic Station

采用地震前兆跟踪分析软件处理数据,发现银川地震台水管仪记录的固体潮波形异常,判定为观测系统故障造成,利用固体潮理论值对比和潮汐因子等手段,对故障原因逐一排查,确定为DSC-2A型前兆数据采集器插口模块故障,并提出解决办法,供同仁借鉴。

Through processing of abnormal waveform of solid tide precursor records observed at Yinchuan Seismic Station with the trace analysis software,it is determined to be caused by the observation system failures.Using comparison of the theoretical and measured values of solid tide and tide factors,the causes of failure are analyzed and sought.It is found that the failure comes from the data socket of DSC-2A type precursory data acquisition instrument.Finally the solution method and some maintenance experiences are put forward.