多功能智能温度控制仪的设计  

The Design for the Muliti-fuction Iutelligence Temperatare Control Intrument

作　　者：李明[1] 

机构地区：[1]青海民族学院电子工程与信息科学系,青海西宁810007

出　　处：《青海师范大学学报（自然科学版）》2007年第3期47-50,共4页Journal of Qinghai Normal University(Natural Science Edition)

摘　　要：本文介绍的是以单片机为核心的多功能智能温度控制仪.它除了具有检测温度、数值显示、PID控制外,还可根据不同情况,由外部给定参数进行控制,而且不需要改变硬件,只要改变软件就能有效地实现较复杂的控制.在测量温度时,通过软件自动切换感温器达到精确测量温度,测量范围由低温到高温.为了使系统结构简单,在热电偶测量中参考端采用了新型的温度传感器DS18B20来测量环境温度.In this article, we introduce the multifunction intelligence instrument for temperature control based on the single plate. Besides its function of temperature measuring, value display and PID control. It can be controlled by giving parameters from outside. We needn＇ t change the hardware, Complicated control can be realized only by adding or changing the software, When measuring the temperature, we can get its accuracy by the automatic shifting through the software. The measuring scope goes from low to high temperature. To make simple the system structure, the new type of temperature sensor DS18B20 is applied to the referring point with the measuring thermocouple to measure the environment temperature.

关 键 词：热电偶 热电阻 温度传感器 数模转换 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]