基于阶跃响应在时域解析测定地震计参数

Analytical determination of the seismometer parameters in time domain based on the step calibration function

提出基于阶跃响应在时域解析测定地震计参数的方法,并对合理确定响应的时间零点提供了一种方法。对JCV1003D型便携式短周期地震计及与其配套的EDAS3M型16位地震数据采集记录仪组成的系统进行了测试。结果表明对JCV1003D短周期地震计的传递函数进行测试是可行的,对地震计的阻尼系数DC和自振周期TC的测试结果是令人满意的。

A method has been developed to obtain analytically the seismometer parameters in time domain based on the step calibration function.It can determine time zero of response.The method has been confirmed by JC-V100-3D seismometer application.It is satisfactory that the damping and frequency of seismometer are obtained by use of the method.