ISSN 1004-4140
CN 11-3017/P
但果, 葛遗林, 陈思平, 陶笃纯. 医用CT增益可编程的多路高速数据采集系统设计[J]. CT理论与应用研究, 2005, 14(1): 37-41.
引用本文: 但果, 葛遗林, 陈思平, 陶笃纯. 医用CT增益可编程的多路高速数据采集系统设计[J]. CT理论与应用研究, 2005, 14(1): 37-41.
shu
DAN Guo, GE Yi-lin, CHEN Si-ping, TAO Du-chun. Design of a High-Speed Multi-Channel Data Acquisition System with PGA of the Medical CT[J]. CT Theory and Applications, 2005, 14(1): 37-41.
Citation: DAN Guo, GE Yi-lin, CHEN Si-ping, TAO Du-chun. Design of a High-Speed Multi-Channel Data Acquisition System with PGA of the Medical CT[J]. CT Theory and Applications, 2005, 14(1): 37-41.
shu

医用CT增益可编程的多路高速数据采集系统设计

Design of a High-Speed Multi-Channel Data Acquisition System with PGA of the Medical CT

    摘要
  • 摘要: 介绍了一种医用CT增益可编程的多路高速数据采集系统,该系统以FPGA为时序控制器,以ADC4344为模数转换器,通过串行移位寄存器控制多路模拟开关实现多路模拟数据的采集,并采用可编程增益放大器提高了系统的分辨率。该系统电路结构简单,对多路高速、宽动态范围的数据采集系统具有一定的通用性,可根据系统的需要进行扩展。

     

    Abstract: A high-speed and multi-channel data acquisition system with PGA of the medical is proposed. Using FPGA, serial register, and analog multiplexer to control the input signals to ADC4344 A/D converter. Using PGA (Program Gain Amplifier) to improve the system resolution. The system circuit is simple which is universal to with high-speed, multi-channel, wide dynamic range data acquisition systems, and can be extended according to the system.

     

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