智能烘箱温度控制器设计学生 溪 班级 098205234 指导老师 黎娟摘要:电烘箱在机械、冶金、化工等行业具有广泛的应用,如机械零件的热处理。在某些情况下,要求对电烘箱的温度实现准确控制,若采纳一般控制方法则难以实现。以铂热电阻温度传感器 PT100 作为感应烘箱温度传感器,它将温度的变化转换为电阻阻值的变化,由铂热电阻 PT100 组成的测量电桥将烘箱温度的变化转换成电压信号变换、再经集成运放 7650 放大成 0~5V 的模拟电压信号后,经 ADC0804 转换成 8 位数字信号送入 AT89C52 单片机系统, AT89C52 单片机对所采集的数据经数字滤波、变换等处理后送入 164 显示模块进行显示,同时输出控制量,控制可控硅的导通从而控制加热装置开启或关闭,实现对烘箱温度的智能控制。本次设计所要现的温度测量围为 0℃~300℃,分辨率为±1℃。测量结果用 3 位 LED 数码管显示。设计中利用STC89C52系列单片机实现了实时温度采样、智能控制,有较高的有用价值;此外,采纳数码显示和键盘输入实现了“人机对话”,充分满足了使用者对于产品使用便捷直观的要求。关键字:温度传感器、A/D 转换 、实时测温 指导老师签字:The development of Intelligent Oven SystemStudent Name: Yaoxi Classe:098205234 Supervisor: ChenlijuanAbstract: Electric oven in the machinery, metallurgical, chemical and other industries has a wide range of applications, such as mechanical partsannealing.Under certain circumstances, the oven temperature is reguired to achieve accuratecontrol,such as the general control methods will be difficult to achieve. Platinum resistance to heat as the temperature sensor PT100 sensors oven temperature sensitive components, It will change the temperature of the resistance to the resistance changes, Platinum by the thermal resistance of Surfacing Bridge will be measured temperature of the oven converted into voltage signal conversion, then integrated operational amplifier 7650 enlarge 0 ~ 5V voltage signal simulation. After ADC0804 converted into eight digital signal into AT89C52 system, AT89C52 of the ...