地震计标定及特性分析应用研究  

The Application Analysis of Seismometer Calibration and Its Characteristics

作　　者：江晓涛[1] 杜兴忠[1] 杨正刚[1] 廖际仁 胡兴尧[1] 

机构地区：[1]中国电建集团贵阳勘测设计研究院有限公司,贵州贵阳550081

出　　处：《工程地球物理学报》2015年第2期254-259,共6页Chinese Journal of Engineering Geophysics

摘　　要：地震计的参数是进行地震波形反演、地震震级确定的基本资料,其性能指标影响着地震数据产出的质量。地震计标定时,初始点位置的选取直接影响对仪器性能好坏的判断。本文以某水库地震监测台网中1个台站标定为例,通过检验和测定地震计标定过程中通频带平坦程度、三分向幅度响应一致性、频带范围、周期阻尼等参数,详细讨论了标定过程中起始点位置的选择原则及影响周期、阻尼计算结果的因素。The seismometer is a critical seismic observation device which can inverse the seismic waveform and determine the earthquake magnitude,and its performance directly affects the quality of seismic data output.The site selection of the initial point is important to the judgment of the quality of the device.In this paper,one station calibration in the network of reservoir earthquake detection is randomly selected.This paper explains in detail how to test the pass band flatness degree of seismometer,the consistency of three-component amplitude response,frequency range,period and damping etc.Besides,the principles of the initial point selection and the results of the damping factor are also discussed in detail.

关 键 词：地震计 标定 初始点位置 周期 阻尼 

分 类 号：P631.4[天文地球—地质矿产勘探]