摘要
根据伺服控制系统对阀门伺服电路性能的要求,针对目前伺服控制电路中存在的电路结构复杂及控制实时性较低等问题,在基于传统伺服电路设计的基础上,采用最新推出的相关功能芯片,设计了以AD698作为差动式位移传感器(LVDT)模拟量处理核心电路,以ST公司的ARM芯片STM32F051及Lattice公司的FPGA芯片XP2-PQFP208为控制系统核心的一款新型伺服控制电路,并给出了该伺服控制电路相应部分的硬件设计原理及软件设计流程。经实验证明,该设计可以有效提高系统伺服控制性能,并且具有可移植性较好,集成度高,结构简单及实时性好的优点,可以实现控制系统对伺服阀驱动功率,测量精度和稳定性等的设计要求。
According to the requirement of servo control system for valve servo circuit.The author present a new design of circuit to solve the problem which is widely exists in the servo circuit that the structure of circuit is comp-licated and the real-time performance is low.The new design is based on the AD698 as the core of Linear Variable Differential Transformer（LVDT）signal process,with ST＇s ARM chip STM32F051 and Lattice＇s FPGA chip XP2-PQFP208.The function and hardware structure of the controller and software flow has been given.Experimental results show that the design can improve the circuit performance effectively.It has the characteristics of portability,simple construction,high integrity and more real-time.The system can meet the requirement of servo control system for power of driving,the accuracy of measurement,and stability of it.
出处
《电子测量技术》
2017年第7期16-19,25,共5页
Electronic Measurement Technology
