基于CPLD的旋转机械振动自主式数据采集系统  

Self-controlled Data Collecting System for Rotating Machinery Vibration Based on CPLD

作　　者：葛恒清[1] 陈华宝[1] 

机构地区：[1]淮阴师范学院物理与电子电气工程学院,江苏淮安223001

出　　处：《仪表技术与传感器》2009年第9期52-54,共3页Instrument Technique and Sensor

基　　金：淮安市科技项目基金(HAG08006)

摘　　要：针对旋转机械振动信号的特点,提出了一种基于CPLD的自主式振动数据采集设计方案;设计了自主式数据采集控制时序功能模块,实现了数据采集过程完全自主式控制,达到了实时高速的数据采集和整个采集过程无需CPU控制的要求,节省了系统资源;设计了双口RAM寻址模块,实现了采集的数据大容量高速存储,达到了大容量数据存储与上传要求;设计了锁相倍频环控制模块,实现了采样点数动态跟踪与滑动可调,满足高速整周期采样要求。Contraposing the character of the vibrational signal, a design scheme of a self-controlled data collecting system based on CPLD is presented; Designed the self data collecting-controlling module realized the self-controlling of data collecting process and attained real-time high-speed collecting data without CPU controlling so as to save the system resource; Designed the dual-port RAM addressing module, realized the data saving with high speed and large capacity, turned large capacity data saveing and high speed transmitting into truth; Designed the PLL controlling module, actualized that the sample frequency follows the ro- tate speed of rotating machinery automatically and, and fufilled the request of the collection of the super-speed and whole period.

关 键 词：旋转机械 数据采集 自主式 CPLD 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]