| 强震仪响应失真高精度校正方法的应用研究 |
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| 引用本文： | 张晓志,王伟,张石磊,于祥涛.强震仪响应失真高精度校正方法的应用研究[J].地震工程与工程振动,2009,29(4). |
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| 作者姓名： | 张晓志 王伟 张石磊 于祥涛 |
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| 作者单位： | 东北电力大学,建筑工程学院,吉林省,吉林市,132012 |
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| 基金项目： | 东北电力大学博士科研启动基金项目 |
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| 摘 要： | 采用数值模拟方法,研究了仪器响应失真的高精度校正方法对强震仪有效观测频带的延拓能力与加速度摆自振频率和阻尼比之间的关系.研究结果表明:只要加速度摆的自振频率不小于10Hz,阻尼比不小于0.05,通过对仪器响应失真进行高精度校正,完全可以使强震仪输出信号有效频带的上限延拓到80Hz.
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| 关 键 词： | 数字强震仪 力平衡加速度摆 仪器响应失真校正 有效观测频带 |
Study on highly-precise method for instrument response distortion correction |
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| ZHANG Xiaozhi,WANG Wei,ZHANG Shilei,YU Xiangtao.Study on highly-precise method for instrument response distortion correction[J].Earthquake Engineering and Engineering Vibration,2009,29(4). |
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| Authors: | ZHANG Xiaozhi WANG Wei ZHANG Shilei YU Xiangtao |
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| Institution: | ZHANG Xiaozhi,WANG Wei,ZHANG Shilei,YU Xiangtao(School of Architecture Engineering,Northeast Dianli University,Jilin 132012,China) |
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| Abstract: | By numerical simulation,the ability of highly-precise method for instrument response distortion correction in extending the effective observation frequency band was studied in the case of different values of the accelerometers natural frequency and damping ratio.The results show that the effective signal frequency band of the strong motion seismograph could be extended to 80Hz in the condition that the accelerometer's natural frequency is no less than 10Hz and its damping ratio is no less than 0.05. |
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| Keywords: | digital strong motion seismograph force-balance accelerometer instrument response distortion correction effective observation frequency band |
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