3.2 继电器电路..................................................................................................................15
3.3 芯片特点......................................................................................................................15
3.3.1 芯片 STC89C52..................................................................................................15
3.3.2 A/D 芯片 ADC0832............................................................................................19
3.2.3 LED 显示...........................................................................................................21
3.3.4 D/A 芯片 DAC0832............................................................................................23
3.4 I/V 转换电路................................................................................................................25
第四章 管式电阻炉系统软件设计 ......................................................................................27
4.1 管式电阻炉系统主程序..............................................................................................27
4.2 A/D 转换子程序...........................................................................................................28
4.3 线性化及标度变换......................................................................................................29
4.4 PID 调节器及参数的整定...........................................................................................31
4.4.1 抗积分饱和型 PID 调节器 ..............................................................................31
4.4.2 增量型 PID 运算 .............................................................................................33
4.4.3 PID 调节器的参数整定方法 ...........................................................................35
4.5 键盘程序设计.............................................................................................................36
4.5.1 键盘扫描子程序...............................................................................................36
4.5.2 按键处理子程序...............................................................................................37
4.6 LED 显示子程序...........................................................................................................38
4.7 D/A 转换子程序..........................................................................................................39
第五章 调试过程................................................................................................................41
5.1 调试过程的相关介绍..................................................................................................41
参考文献....................................................................................................................................43
