Σ-Δ型模数转换器应用于强震数据采集系统

APPLICTION OF Σ-Δ ADC TO MACROSEISM DATA ACQUISITION

利用32位微处理器控制Σ-Δ型模数转换器ADS1248,实现了MEMS加速度传感器输出电压信号的模数转换,采集到的地震信号满足强震数据采集要求。

By applying the ADS1248 controlied by the 32bit microprocessor,the voltage signal of the MEMS acceleration sensor can be converted to digital. It is proved that the gathered data of the seismic signal meet the relevant requirements of the macroseism data acquisition.