1、 数字电子数字电子课程设计课程设计 题题 目：目： 数字温度计的设计与实现 专专 业：业： 班班 级：级： 数字温度计数字温度计的设计与实现的设计与实现 摘要摘要 数字温度计采用进口芯片组装精度高、高稳定性，误差0.5%， 内电源、 微功耗、不锈钢外壳，防护坚固，美观精致。 数字温度计采用进口高精度、低温漂、超低功耗集成电路和宽温型液晶显示 器，内置高能量电池连续工作5 年无需敷设供电电缆，是一种精度高、稳定性 好、适用性极强的新型现场温度显示仪。是传统现场指针双金属温度计的理想替 代产品，广泛应用于各类工矿企业，大专院校，科研院所。 温度数我们日常生产和生活中实时在接触到的物理量，但是它是看
2、不到的， 仅凭感觉只能感觉到大概的温度值，传统的指针式的温度计虽然能指示温度，但 是精度低，使用不够方便，显示不够直观，数字温度计的出现可以让人们直观的 了解自己想知道的温度到底是多少度。 关键词：关键词： 数字温度计；温度传感器；3 位半的 ADC 转换芯片；报警；共阳极 发光二极管显示屏；电压反转芯片 Design and realization of digital thermometer Abstract Digital thermometers imported chips assembled with high precision, high stability and error
3、 0.5%, power, micropower, stainless steel case, protective solid, beautiful and refined. Digital thermometers imported high precision and low temperature drift, ultra low-power integrated circuits and wide temperature LCD, built-in high energy battery power 5 years of continuous service without layi
4、ng cable, is a high precision, good stability, strong applicability of new in-situ temperature indicator. Is the ideal alternative to traditional pointer Bimetal Thermometer products, widely used in various industrial and mining enterprises, universities, scientific research institutes. Temperature
5、number we daily production and life in the real-time in contact to of physical volume, but it is see not to of, only by feels only feels to probably of temperature value, traditional of pointer type of thermometer while can indicates temperature, but precision low, using enough convenient, displayed
6、 enough intuitive, digital thermometer of appeared can let people intuitive of understanding themselves wanted to knows of temperature what is how many degrees. Keywords: digital thermometer，temperature transducer，Three and a half of the ADC conversion chip，alarm，A total of anode led display screen，Reverse voltage chip 目录目录 第 1 章 绪论 1 1.1 课题研究的目的 . 1 1.2 设计任务与要求 . 1 1.2.1 数字温度计的设计与实现任务 . 1 1.2.2 数字温度计的设计要求 . 1 第 2 章 数字温度计电路的总体设计. 2 2.1 方案设计 . 2 2.2 电路的总体设计
