中文摘要：

在此设计了一种基于HT48R54A单片机的太阳能热水器温度测量系统。该系统采用负温度系数热敏电阻作为温度传感元件，~LC_．RC充放电式温度测量电路实现温度的采集；根据热敏电阻温度与阻值的关系，建立温度表格，通过查表方式检测出当前的温度。该系统结构简单，价格低廉，且占用极少系统资源。

英文摘要：

A temperature measurement system for solar water heater based on HT48R54A single-chip microcomputer is de- signed. Negative temperature coefficient thermistor is used as sensing element in the system, and temperature is sampled by RC circuit. Temperature tables are created according to the relationship between temperature and the resistance of the thermistor. The current temperature is gotten by look-up table. It is proved that the system possess the listed advantages： simple structure and low cost, and uses little of system resources.