便携式振动数据采集系统的设计

Design of portable steam vibration data acquisition system

为了实现对工业生产中旋转机械动力装置进行更灵活的振动检测,设计了一款可手持的便携式振动数据采集系统。该设计采用嵌入式多CPU主从式结构,选用成本较低且性能强劲的国产CH32微控制器和国产SOC作为系统的核心主控,通过对数模转换模块、信号调理电路和网络通信电路的设计,实现了对四通道振动信号以16 bit精度64倍频的同步采集,并结合上位机软件进而实现了对采集的振动数据进行时域和频域分析以及可视化处理。研究结果表明,该方案设计成本较低、适应性强、便于携带,并具有一定的国产化特性。

In order to realize more flexible vibration detection of rotary machinery power units in industrial production,a portable vibration data acquisition system was designed.The design adopted the embedded multi⁃CPU master⁃slave structure,and selected the low cost and strong performance of the domestic CH32 microcontroller and the domestic SOC as the core control system.Through the design of digital⁃to⁃analog conversion module,signal conditioning circuit and network communication circuit,the synchronous acquisition of 4-channel vibration signal with 16 bit accuracy and 64 times frequency is realized.Combined with the upper computer software,the time domain and frequency domain analysis and visualization processing of vibration data are realized.The results show that the design cost of the scheme is low,strong adaptability,easy to carry,and has certain characteristics of localization.