高精度RTD温度检测系统设计

System Design for High Precision RTD Temperature Detection

为了满足温度检测的精度要求,设计了一种基于电阻式温度检测器(RTD)电路的高精度温度检测系统。介绍了以dsPIC30F芯片为核心的整体硬件设计方案及软件设计思想,实际的调试及运行表明,此系统的温度检测精度高,抗干扰能力强,体积小,能实现6位半LED显示输出功能,具有很强的实用价值。

In order to achieve high precision of temperature detection, a kind of high precision temperature detection system based on RTD circuits was presented. The complete hardware architecture taking dsPIC30F chip as its core and the software scheme were detailed. The results of experiment and practical operation indicate that the system has the characteristics of high precision, strong anti-interference, small volume, and fine practicability, being able to achieve output of six-and-half LED display.