基于动态跟踪的CPLD振动数据采集设计  

Design of CPLD for Shaft Vibration Data Acquisition Based on Dynamic Tracking Technique

作　　者：葛恒清[1] 孙红兵[1] 黄石红[2] 

机构地区：[1]淮阴师范学院电子与电气工程系 [2]东南大学能源与环境学院

出　　处：《微计算机信息》2009年第26期136-138,共3页Control & Automation

基　　金：基金申请人:孙红兵;项目名称:多主体及移动主体协作技术在大型结构健康监测中的应用;基金颁发部门:江苏省高校自然科学基金委(08KJD560009);淮安市科技基金(HAG08006)

摘　　要：提出了一种基于PLL的采样周期动态跟踪的整周期采样设计方案,采用PLL与CPLD技术设计了锁相环倍频电路,实现了采样周期动态跟踪与整周期采样点数滑动可调。在旋转机械轴振动信号监测系统应用中明显地降低了信号采样中频谱泄漏,满足高速整周期采样要求。A scheme of integrated period sampling, which sampling frequency is dynamic tracked based on PLL, was presented. With the use of CPLD and PLL technology, phase-locked loop circuit for muhiple frequencies was designed to achieve the sampling frequency dynamic tracking and sampling points adjusting slidly in synchronous integrated period sampling; Spectral leakage was reduced significantly by aplied in the system of rotating machinery shaft vibration monitoring;Meet the requirements of high-speed integrated period sampling.

关 键 词：PLL 同步整周期采样 动态跟踪 CPLD 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]