电热水器水温水位控制系统设计-毕业论文定稿

电热水器水温水位控制系统设计
                       
 
摘 要
本系统是为电热水器水温水位控制系统而设计的。在电热水器温控系统中,水温和水位传感器起着举足轻重的作用。系统的分析了耐高温电容式液位传感器分别检测水温和水位的原理,以 AT89S51单片机为核心,实现对水温和水位、上水测量、显示、报警等功能,并以电磁阀、继电器为阀门开关全自动加热、上水。整个系统精度高，耐高温性强，易于调整，测试方便。测试结果表明，误差小于2%，达到设计要求。
关键词：AT89S51单片机，水温水位，传感器，检测与控制
The System For control The Temperature And Level 即热式电热水器安装Of The Electric Wat
er Heater
ABSTRACT
This system is design to measure and control the water lever and temperature for the water-heaer.It’s composed of two sensor (a digital chip DS18B20 and a lever sensor),display,buzzer and so on,all these component are control of the core chip AT89S51. This system can display the lever and the temperature in the water_case .In addition,it will be heaet or add water automatic through electromagnetism vave or relay which are controled by AT89S51. The whole system is easy to adjust.It is proved to be reliable and of high value and high feasibility after testing.

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