大地测量与地球动力学2017，Vol.37Issue(4)：411-415,5.DOI:10.14075/j.jgg.2017.04.018
重力仪与地震计记录的地震波信号频谱特征比较——以芦山7.0地震为例
A Comparison between the Spectral Characteristics of Seismic Signals Recorded by Gravimeter and Seismometer:Taking Lushan 7.0 Earthquake for Example
摘要
Abstract
Taking Lushan earthquake as an example,we compare the spectral characteristics of seismic signals recorded by gravimeter and seismometer in the same seismic stations.The results show that the P-waves recorded by the two instruments are basically the same when the epicenter distance is greater than 2 000 km,but there is a slight difference in magnitude.The results of P-wave spectrum analysis indicate that the gPhone gravimeter cannot record some high frequency information,and the main frequency range of seismic waves recorded by the gPhone gravimeter and CTS-1 seismometers are quite concentrated in the 0-0.3 Hz range when the epicenter distance is greater than 2 000 km.关键词
gPhone重力仪/CTS-1地震计/地震波/频谱分析/芦山地震Key words
gPhone gravity meter/CTS-1 seismometer/seismic wave/spectral analysis/Lushan earthquake分类
天文与地球科学引用本文复制引用
范文华,申重阳,谈洪波,韦进..重力仪与地震计记录的地震波信号频谱特征比较——以芦山7.0地震为例[J].大地测量与地球动力学,2017,37(4):411-415,5.基金项目
National Key Basic Research Program of China,No.2013CB733304 （）
National Natural Science Foundation of China,No.41431069 （）
Director Fund of Institute of Seismology,CEA,No.IS201326128.国家973计划(2013CB733304) （2013CB733304）
国家自然科学基金(41431069) （41431069）
中国地震局地震研究所所长基金(IS201326128). （IS201326128）
