摘要
介绍了泰安地震台YRY 2钻孔应变仪 1 991～ 1 996年观测数据的调和分析结果 .分析了潮汐参数的动态特征及其稳定性 ,并将有关结果与洞体水平线应变仪的(伸缩仪 )观测结果进行了对比分析 .泰安地震台YRY 2钻孔应变仪NS分量M2 波月潮汐因子的离散中误差为 3.3% ,NE分量为 3.6 % ,相位滞后的月离散误差小于2°.该指标与最好的洞室仪器SSY Ⅱ的结果相当 .
The harmonic analysis results of data by the YRY 2 bore hole earth strain meter of Tai an seismic station from 1991 to 1996 are introduced.The dynamic characteristics and stability of the tidal parameters for the meter are analysed.A comparison between the results of the YRY 2 meter and SSY Ⅱ quartz tube extensometer is made.The discrete error mean square of NS channel of the YRY 2 meter is 3.3 %,that of NE channel of the meter is 3.6 %,and monthly discrete error of phase lag is less than 2.0°.It shows the observation precision of the YRY 2 meter of the station is analogous to the best SSY Ⅱ quartz tube extensometer.
出处
《西北地震学报》
CSCD
北大核心
2001年第2期112-116,共5页
Northwestern Seismological Journal
基金
地震科学联合基金资助项目 (10 0 12 5 )
