力平衡式加速度计仪器响应误差的校正方法  

The correction method of instrument response errors for force-balance accelerometer

作　　者：于海英[1] 

机构地区：[1]中国地震局工程力学研究所,黑龙江哈尔滨150080

出　　处：《地震工程与工程振动》2006年第6期200-203,共4页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金项目(50478017)

摘　　要：本文通过对数字强震仪系统使用的力平衡加速度计的仪器响应误差进行分析,提出了一个校正仪器响应失真的处理方法(微分-微分方法),即对未校正记录做低通滤波后运用近似理想微分器做两次微分得到校正加速度记录。针对大亚湾核电站地震仪表系统(K IS)给出了仪器校正示例,并编制了相应计算软件。该方法适用于我国强震动台网数字强震仪获取的加速度记录的仪器响应误差校正处理。The analysis of instrument response errors for force-balance accelerometer of digital accelerograph system is carried out in this paper. A method for correcting instrument response errors （the differential-differential method） has been put forward, i.e. the un-correction acceleration data are treated by low-pass filtering. They are differentiated twice with approximate ideal differentiators to obtain the corrected accelerogram. In allusion to the earthquake instrument system （KIS） of Daya Bay nuclear power station, the instrument response correction demonstration is given, and the corresponding compute processing softwares are compiled. The method is applicable for instrument response correction processing of accelerogram recorded by digital accelerograph of China strong motion network.

关 键 词：数字强震仪 力平衡加速度计 仪器响应误差校正 加速度记录 软件 

分 类 号：P315.916[天文地球—地震学]