泰安台YRY-2钻孔应变仪线差应变潮汐参数及其稳定性研究  

A STUDY ON TIDAL PARAMETERS AND ITS STABILITY FOR THE YRY-2 METER OF TAIAN STATION

作　　者：唐九安[1] 刘厚明[2] 豆跃华[1] 

机构地区：[1]中国地震局兰州地震研究所,甘肃兰州730000 [2]山东省地震局泰安地震台,山东泰安271000

出　　处：《西北地震学报》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 )

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.

关 键 词：山东 应变仪 线差应变 潮汐参数 泰安地震台 地震监测 YRY-2钻孔应变仪 

分 类 号：P315.725[天文地球—地震学]