长春大学课设电阻炉说明书内页解决方案.docVIP

┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ 装 ┊ ┊ ┊ ┊ ┊ 订 ┊ ┊ ┊ ┊ ┊ 线 ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ ┊ 长春大学 课题设计纸 PAGE  电阻炉温度控制系统设计 [摘要] 电阻炉是工农业生产中常用的电加热设备,广泛应用于冶金、机械、建材等行业，而大功率的电阻炉则应用在各种工业生产过程中。然而，大多数电阻炉存在着各种干扰因素，将会给工业生产带来极大的不便。因此，在电阻炉温度控制系统的设计中，应尽量考虑到如何有效地避免各种干扰因素而采用一个较好的控制方案，选择合适的芯片及控制算法是非常有必要的。温度传感器采用了数字式温度传感器DS18B20，对温度进行实时采样并将模拟信号转换成数字信号返回给单片机。系统可通过键盘对电阻炉温度进行预设，单片机根据当前炉内温度和预设温度进行比较结果，在进行PID运算，控制输出宽度可调的PWM方波，并由此控制固态继电器的导通和关断来调节电热丝的加热功率，当炉内温度过高与过 低的时蜂鸣器将进行报警，从而使炉内温度迅速达到预设值并保持恒定。 [关键词] 温度检测，单片机，温度控制 Design of Resistance Furnace Temperature Control System [Abstract] Resistance furnace is commonly used in industrial and agricultural production electric heating equipment, widely used in metallurgy, machinery, building materials industry, and high power electric resistance furnace is applied in all kinds of industrial process. However, there are all kinds of interference factors, most of the resistance furnace will bring great inconvenience to the production of industry. Therefore, in the design of resistance furnace temperature control system, should consider how to effectively avoid as far as possible all kinds of interference factors and use one of the better control scheme, select the appropriate chips and control algorithm are necessary. Temperature sensor using the digital temperature sensor DS18B20, the temperature of the real-time sampling and converting analog signals into digital signals back to the single chip microcomputer. System of resistance furnace temperature ? through keyboard [Keyword] temperature measurement，single chip microcomputer，temperature contro 目 录  TOC \o 1-3 \h \z \u   HYPERLINK \l _Toc436766073 第1章 前言  PAGEREF _Toc436766073 \h 1  HYPERLINK \l _Toc436766074 第2章 确定系统方案  PAGEREF _Toc436766074 \h 2  HYPERLINK \l _Toc436766075 2.1系统设计要求  PAGEREF _Toc436766075 \h 2  HYPERLINK \l _Toc436766077 2.2系统设计方案  PAGEREF _Toc436766077 \h 2  HYPERLINK \l _Toc436766080 第3章 系统硬件设计  P