摘要
针对传统的水银温度计易破损,读数误差大的问题,提出一种基于ADμ C842单片机的数字式温度计,该数字式温度计克服了传统测量方法的缺陷,具有制作简单、操作简便、精度高、线形度好、性价比高等优点;介绍本装置的总体方案设计、软硬件设计及测试方案。测试结果表明,其各项指标均可达到日常测量要求。
For the problem that traditional mercury thermometers are easily broken and poor accuracy, this paper describes a digital thermometer based on ADμC842 single-chip microcomputer. The device overcomes the shortcomings of traditional measurement methods and has a lot of advantages such as being simple to make, easy to operate, high precision, well linear degree, cost-effective and so on. This paper introduces the device＇s overall program design, design and testing of hardware and software programs. The results of tests show that the targets of day-to-day measurement requirements can be achieved.
出处
《电脑与电信》
2009年第7期64-66,共3页
Computer & Telecommunication
关键词
温度测量
数字式温度计
ADμC842单片机
恒流源
temperature measurement
digital thermometer
ADμC842 single-chip microcomputer
constant current source
