摘要
针对传统的铂热电阻温度计反应速度慢、读数麻烦、测量精度不高、误差大等缺点,本文采用DS18B20数字温度传感器来实现基于AT89C52单片机的数字温度计的设计。该数字温度计采用AT89C52单片机作为主控芯片,并配以温度检测模块、LCD显示模块、键盘控制模块和温度报警模块,不仅实现了温度显示,而且当温度超过预值时,能监控温度,进行声光报警。
Aiming at the shortcomings of slow reaction rate, reading trouble, lower measurement accuracy, great error and so on in traditional platinum thermal resistance thermometers, this paper adopts DS18B20 digital temperature sensor to realize the design of digital thermometer based on AT89C52 single chip microcomputer. The digital thermometer uses AT89C52 single chip microcomputer as the main control chip, and is equipped with the temperature detection module, LCD display module, keyboard control module and temperature alarm module. The thermometer can not only achieve the temperature display, but also make audible and visual alarm when the temperature detected exceeds the threshold.
出处
《科技广场》
2016年第6期179-182,共4页
Science Mosaic
