基于DSP的智能流量测量系统的设计

Design of Intelligent Flow Measurement System Based on DSP

本文首先介绍了相关检测的原理和超声波相关流量计的工作过程,在此基础上给出了以DSP芯片TMS320VC5402为核心的测量系统硬件框图,并详尽的分析了各部分的功能和所使用的芯片,尤其是使用了新的DDS芯片AD9850生成正弦波。最后,还给出了系统程序的主流程图。通过仿真实验,证明此方案是有效、可行的。

Both the principle of correlative measurement and work process of ultrasonic correlative flow-meter are introduced in this paper. Hardware design diagram with the core of DSP chip TMS320VC5402 is proposed on the basis of this principle. Functions of all parts and chips used are analyzed in detail. Especially, in our design, new DDS chip AD9850 is used to produce the sine wave. Finally, we give the flowchart of this system. The simulation experiments prove the effectiveness and feasibility of this method.