基于△-∑技术和FPGA的数据采集系统

为了改善传统数据采集系统运算能力差、分辨率低、可靠性低等缺点，结合△-∑技术和FPGA，设计了一种多通道、高分辨率、宽动态范围的新型数据采集系统。提出了一种由△-∑A／D转换芯片、高性能FPGA和DSP组成的数据采集系统方案及其硬件电路实现方法。系统利用A／D器件对信号进行滤波、放大、差分转换和模数转换，利用FPGA设计内部模块和时钟信号进行电路控制及实现数据缓存、数据传递等功能，由高速DSP芯片核心控制，对采样数据进行实时处理。系统能实现24位高分辨率、宽动态范围的信号数据采集与高速实时处理，可用于电压、电流、温度等参量的采集系统中。...

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Bibliographic Details
Published in电子技术应用 Vol. 37; no. 6; pp. 141 - 144
Main Author 张瑜 孟庆楠 杨开宇 高印寒 王瑞宝
Format Journal Article
LanguageChinese
Published 长春理工大学电子信息与工程学院,吉林长春,130022%吉林大学仪器科学与电气工程学院,吉林长春,130026%吉林大学测试科学实验中心,吉林长春,130022 2011
Subjects
FPGA
宽动态范围
技术
数据采集
高分辨率
宽动态范围
技术
高分辨率
FPGA
数据采集
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ISSN0258-7998
DOI10.3969/j.issn.0258-7998.2011.06.046

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Summary:为了改善传统数据采集系统运算能力差、分辨率低、可靠性低等缺点，结合△-∑技术和FPGA，设计了一种多通道、高分辨率、宽动态范围的新型数据采集系统。提出了一种由△-∑A／D转换芯片、高性能FPGA和DSP组成的数据采集系统方案及其硬件电路实现方法。系统利用A／D器件对信号进行滤波、放大、差分转换和模数转换，利用FPGA设计内部模块和时钟信号进行电路控制及实现数据缓存、数据传递等功能，由高速DSP芯片核心控制，对采样数据进行实时处理。系统能实现24位高分辨率、宽动态范围的信号数据采集与高速实时处理，可用于电压、电流、温度等参量的采集系统中。
Bibliography:data acquisition; △-∑ technique; FPGA; high-resolution; wide dynamic range
To improve the processing capacity of traditional data acquisition system,such as operation resolution and reliability, a multi-channel,high-resolution,and wide dynamic range data acquisition system combined with △-∑ technique and FPGA was designed. The paper provided a data acquisition system and presented a hardware circuit method composed by a △-∑ A/D converter chip,high-performance FPGA and DSP data acquisition system. The system filters,amplifies,differential converts and analog-digital converts the signal by AD device,the FPGA controls circuits,caches and transmits data by using an internal module and clock signal,the high-speed DSP chip was employed to control the system and process the real-time data.The system can fulfill the 24-bit high-resolution,data acquisition of wide dynamic range,and high-speed real-time processing.It can be used as the acquisition sys- tem of voltage,current and temperature parameters.
11-2305/TN
Zhang Yu
ISSN:0258-7998
DOI:10.3969/j.issn.0258-7998.2011.06.046