基于嵌入式的岩石真三轴试验机控制系统设计  

Design of Control System for Rock Real Three Axis Testing Machine Based on Embedded System

作　　者：郝振兴 魏晋宏 高培昱 

机构地区：[1]太原理工大学,新型传感器与智能控制教育部与山西省重点实验室,山西太原030024

出　　处：《仪表技术与传感器》2017年第11期76-79,共4页Instrument Technique and Sensor

基　　金：国家自然科学基金项目(U1261102)

摘　　要：为了满足岩石强度特性实验对于岩石真三轴试验机高精度恒温输出的控制要求,设计了一种以ARM9和Linux为平台的温度控制系统。该温控系统的硬件采用嵌入式芯片S3C2440;软件开发采用嵌入式Linux操作系统作为平台。温度的测量采用K型热电偶;通过应用模糊PID控制策略来实现对岩石真三轴试验机恒温输出的高精密控制。实验验证了该温度控制系统操作便捷,温度超调量小,控制精度达到1.1℃。In order to meet the high precision control requirements of constant temperature output of the rock real three axis testing machine in rock intensity characteristics experiment,a temperature control system based on ARM9 and Linux was designed. The hardware of the temperature control system adopted embedded chip S3 C2440.The software used the embedded Linux operating system as the platform. Temperature measurement adopted K type thermocouple. The fuzzy PID control strategy was adopted to achieve the high precise control of the constant temperature output for the rock real three axis testing machine. The experimental results show that the temperature control system has convenient operation,small temperature overshoot and control accuracy reaches 1.1 ℃.

关 键 词：嵌入式LINUX S3C2440 岩石真三轴试验机 模糊PID 温度控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]