常熟地震台伸缩仪运行分析  

OPERATION STATUS ANALYSIS OF EXTENSOMETER AT CHANGSHU SEISMOSTATION

作　　者：狄樑[1] 陆德明[1] 丁建国[1] 

机构地区：[1]江苏省地震局常熟地震台,常熟215500

出　　处：《大地测量与地球动力学》2013年第A02期21-23,共3页Journal of Geodesy and Geodynamics

摘　　要：对常熟地震台2008—2011年SS-Y伸缩仪观测资料的连续率、噪声水平及M2波振幅因子的相对中误差等指标的质量评定表明:1)在无雷害情况下,伸缩仪连续率在99.6%以上;2)噪声水平及M2波振幅因子的相对中误差等指标均符合形变观测规范要求,较为稳定;3)SS-Y伸缩仪主要受气压及降雨干扰,降雨干扰最大。The SS-Y extensometer status in Changshu seismostation from 2008 to 2011 was analyzed, through the continuous rate of the data, the noise level of the observational data and the relative mean error of M2 wave am- plitude factor, the quality assessment was studied, the results show that ： 1 ） the value of the continuous rate of ex- tensometer is more than 99.6% in the case of no lightning; 2） the noise level and relative mean error of the M2 wave amplitude factor are in line with the deformation regulatory requirements, and they are stable; 3 ） SS-Y exten- someter is mainly affected by the interference effects of barometric pressure and rainfall, and the greatest impact is rainfall.

关 键 词：SS-Y伸缩仪 观测资料 质量评定 干扰 连续率 

分 类 号：P315.7[天文地球—地震学]