基于ADS1255的地震信息采集模块设计
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摘要
为满足地震数据采集系统高精度信息采集的需求,设计一种以24位Δ-Σ型A/D模数转换器ADS1255为核心,高性能数字信号处理器TMS320F2812为主采集控制器的地震信息采集模块,详细给出该模块的硬件电路及其软件设计。该地震信息采集模块具有宽范围的采样输出速率和可靠的采样精度,可广泛应用于高精度采集系统。
In order to satisfy the demand of high precision information acquisition in seismic information acquisition sys- tem,a new seismic information acquisition module is designed in this paper,which uses 24 -bit,Δ -Σanalog -to-digital ADS1255 as a core and TMS320F2812 as the main acquisition controller.The hardware and software design of the module are also discussed in detail.This seismic information acquisition module has a wide range of acquisition output data rate and dependable sampling precision,and is widely applied to many high precision acquisition system.
引文
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    [3]Texas Instruments.ADS1255/ADS1256,very low noise,24-bit,analog-to-digital converter[EB/OL].2008.http://focus.ti.com.cn/cn/lit/ds/symlink/ads1255.pdf.
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