WANG Lei, YANG Xue-shan, GAO Feng, et al. Design of ground vibration spectrum intensity sensor[J]. 2016, 35(3): 80-82. DOI: 10.13873/J.1000-9787(2016)03-0080-03.
地震动谱烈度传感器设计
摘要
谱烈度传感器采用三分量MEMS器件采集加速度信号
经过IIR带通滤波器
采用一种地震动谱烈度的实时计算方法
根据单自由度系统的地震输入响应
利用Z变换方法
得到相对速度反应谱的差分方程
来计算实时地震动谱烈度。
Abstract
Spectrum intensity sensor collects acceleration signal by using three components MEMS device
by IIR band-pass filter
adopt a real-time calculation method of ground vibration spectrum intensity
according to earthquake input response of single degree of freedom( SDOF) system
use z-transformation method
difference equation of relative velocity response spectrum is deduced
realtime groun vibrmtion spectrum intensity is calculated.