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温度检测是常用而又重要的一个实际应用项目,它在工业生产、现代科学研究、家庭应用以及高新技术开发中的作用尤为突出。由于现代电子检测技术迅猛发展,原来传统的指针式和水银式温度计已经跟不上现代社会发展的需求,为了实现方便携带、方便测量特别设计一款便携式温度计,采用DS18B20数字温度传感器和热电阻温度传感器,以及ATMEL公司生产的AT89C52单片机、模拟运算放大器、电源等集成电路,采用LCD12864液晶显示屏及其配套的控制驱动电路显示测量结果。
Temperature detection is a common and important practical application, and its role in industrial production, modern scientific research, home applications and high-tech development is particularly prominent. Due to the rapid development of modern electronic detection technology, the traditional pointer and mercury thermometers can not meet the needs of the development of modern society. In order to facilitate the portable and convenient measurement, a portable thermometer is specially designed. The DS18B20 digital temperature sensor and the thermal resistance temperature Sensors, and ATMEL AT89C52 microcontroller, analog op amp, power and other integrated circuits, LCD12864 LCD screen and its associated control drive circuit to display the measurement results.