宁夏灵武井下短周期地震计更换后的参数测定

Short Period Parameter Measurement of the Borehole Seismometer After Replacement in Lingwu,Ningxia

宁夏灵武地震观测井于2018年12月底更换地震计与数采,更换后的地震计为井下短周期GL-S2B型号,更换后的数据采集器为EDAS-24GN型号。更换完成后,北京港震仪器设备有限公司技术人员及宁夏地震局技术人员对更换地震计及数据采集器进行了方位角校正、阶跃标定、正弦标定、台基噪声功率谱密度测试等参数测定,以此来确保此次宁夏灵武井下地震计安装的合理规范,以确保今后宁夏灵武井下地震计正常高效运作、地震监测工作有序进行。

The seismometer and data acquisition of Ningxia Lingwu seismic observation well were replaced at the end of December 2018.After replacement,the seismometer model was GL-S2 B borehole short period seismometer,and the data acquisition model was EDAS-24 GN data acquisition.After the completion of the replacement seismometer and data acquisition,technicians of Beijing port seismic instrument and Equipment Co.,Ltd.and Ningxia Seismological Bureau carried out a series of parameter measurements,such as azimuth correction,step calibration,sine calibration,station based noise power spectral density test,etc.,to ensure the reasonable and standardized installation of the underground seismometer in Lingwu,Ningxia,so as to ensure the future Ningxia Lingwu underground seismometer operates normally and efficiently.And Ningxia earthquake monitoring work is carried out orderly.