NTC热敏电阻温度传感数字温度计

论文编号:DZXX368 论文字数:8063,页数:28

摘要
 
 随着人们生活水平的不断提高,单片机控制无疑是人们追求的目标之一，它所给人带来的方便也是不可否定的。温度测控技术也在各个领域应用越来越广泛，人们对它的要求越来越高，要为现代人工作、科研、生活、提供更好的更方便的设施就需要从数单片机技术入手，一切向着数字化控制，智能化控制方向发展。
 本课题设计主要由SM410361K模块作显示，P89V51RD2单片机模块作程序控制，NTC热敏电阻做温度传感模块芯片，实现数字测温。
 本设计所介绍的数字温度计与传统的温度计相比，具有读数方便，测温范围广，测温准确，其输出温度采用数字显示，主要用于对测温比较准确的场所或科研实验室使用。
 
关键词：Protel,数字温度计,NTC热敏电阻
 
  
Abstract
 
 With the continuous improvement of people's living standards, the MCU control is undoubtedly one of the objectives pursued by the people, the convenience can not be negative . Temperature monitoring and control technologies are applied more extensively in various fields, it demands more and more people, to work for modern, scientific research, life, the more convenient to provide better facilities on the need to start with a few microcontroller technology, all In a digital control, intelligent control direction.
 Figure thermometer design does display mainly from SM410361K liquid crystal module , the P89V51RD2 monolithic machine module assumes program control,NTC thermistor makes the sensory temperature module chip , realizes a figure measuring the temperature.
 The temperature designing that the what be introduced that figure thermometer has numerical reading going to the lavatory , measures temperature range expanding, measures compared with the tradition thermometer originally, is accurate,whose output temperature adopt a digital display, is used to be put into use to measuring comparatively accurate lieu of temperature,or the scientific research laboratory mainly.
 
Keywords: Protel, Digital thermometer, NTC thermistor
 

目录

摘要 I
Abstract II
第1章 绪论 1
 1.1 概述 1
 1.2 系统背景与现状 2
第2章 开发环境和开发工具介绍 3
 2.1  P89V51RD2单片机模块介绍 3
 2.1.1 主要性能参数 3
 2.1.2 功能特性概述 4
 2.1.3  P89V51RD2相关脚位及基本電路 4
 2.2  NTC热敏电阻温度传感器介绍 5
 2.2.1  NTC热敏电阻温度传感器简介 5
 2.2.2  NTC热敏电阻温度传感器参数及特性 5
 2.2.3  NTC热敏电阻的外形和应用电路原理图 7
第3章 硬件电路设计介绍 9
 3.1 传感器模块以及A/D转化电路 9
 3.2  P89V51RD2单片机核心控制器 9
 3.3  SM410361K数显管 12
 3.4 电源电路 142
 3.5 串口通信电路 112
 3.6 复位电路 14
第4章 程序设计介绍 15
 4.1 软件设计流程图 15
 4.2 系统初始化 15
 4.3 确定算法 16
 4.4 数码管的动态显示 16
 4.5 调试 16
 4.6 分析问题 16
第5章 结束语 17
致谢 18
参考文献 19
附录 20

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