论文编号:JD803 论文字数:5443,页数:17
设施环境中温度测量电路设计
摘 要：设施环境中温度的测量是人们期望或绝对需要的。本文介绍了温度传感器AD590的功能和特性，分析了AD590的工作原理，同时简单介绍了模数转换器ADC0809和单片机AT89C2051，给出了基于温度传感器AD590的数字温度计的设计方案，这种温度计主要是用来测量设施环境中的温度。具有测量精度高，误差小，便于携带等优点。
关键词：温度传感器；单片机；模数转换；数码显示
Facilities Environment Temperature Measurement Circuit Design
Abstract: Facilities for measuring the environment temperature is expected, or absolutely necessary. The paper introduced a temperature sensor AD590 features and characteristics of the principle of AD590, and a brief introduction to the ADC0809, SCM AT 89C2051, give a method of the design of the thermometer which is based on the temperature sensor AD590. This thermometer is mainly used to measure the temperature of the environment. With high measurement accuracy, the error small, easy to carry, etc.
Keywords: temperature sensor；SCM；analog-to-digital converter；displayed in number
目录
摘 要 I
Abstract I
目录 I
引言 1
1 几个集成模块的功能和特性 1
1.1 AD590的功能及特性 1
1.2 AT89C2051单片机 5
1.3 ADC0809模数转换器 6
2 数字温度计系统设计的结构框图 7
3 数字温度计的设计电路图 8
4 系统软件设计与编程 9
4.1 系统主程序流程图 9
4.2 十进制数转换调整子程序流程图 10
4.3 LED数码显示子程序流程图 11
5 结束语 13
参考文献 14
谢 辞 15
