设计了一套应用于直升机桨叶地面热疲劳加载试验的加热及温度控制系统;阐述了加热组件和温度传感器的布置型式和位置;介绍了系统的总体设计方案;编制了基于协议宏的通信程序;以欧姆龙PLC为核心控制器,编制了系统的控制程序;设计了人机交互界面。系统采用集中安装,维护操作方便;系统运行效果良好,可以满足试验的要求。 A set of heating and temperature control system for helicopter paddle thermal fatigue loading test was designed. The arrangement type and position of heating assembly and temperature sensor were described. The overall design of the system was introduced. A communication protocol based on protocol macro Based on Omron PLC as the core controller, the system control program has been programmed and human-computer interaction interface has been designed. The system adopts centralized installation, easy maintenance and operation; the system works well and meets the requirements of the experiment.