地震地磁观测与研究2013，Vol.34Issue(1)：246-253,8.DOI:10.3969/j.issn.1003-3246.2013.01/02.045
宽频带地震计反馈模型分析及应用实例
Analysis of the feedback model of the broadband seismometer and an application example
摘要
Abstract
In this paper, we first derive the transfer function of a broad band seismometer and form its feedback model. Then, we simplify it into an approximate expression. This approximate expression is a product of a sensitivity value, a transfer function of a low pass filter and a transfer function of a high pass filter. From it, we can see how the electronic and mechanical parameters decide the seismometer s amplitude response clearly. This information can help us to design seismometers with amplitude response that we expect. We practiced this method in the designing of EDAS-BS60 seismometer and got good consistency between theoretic amplitude response and sine calibration results of real seismometers.关键词
反馈地震计/宽频带/传递函数/幅度响应Key words
feedback seismometer/ broadband/ transfer function/ amplitude response引用本文复制引用
薛兵,林湛,张妍,朱小毅,杨桂存..宽频带地震计反馈模型分析及应用实例[J].地震地磁观测与研究,2013,34(1):246-253,8.基金项目
中国地震局地震预测研究所基本科研业务专项"地震计传递函数测试软件研究研制"(编号2010IES0201) （编号2010IES0201）
