水泥包装机设计大学本科毕业论文.doc

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1、水泥包装机毕业论文水泥包装机毕业论文目录目录.................................................................第一章前言.........................................................11.1选题背景......................................................11.1.1老式水泥包装机.................................................1

2、1.1.2称重控制机构电子化发展概况.....................................11.2本文主要工作......................................................21.2.1本设计工作的主要内容..........................................21.2.2系统设计思想..................................................3第二章系统综述...........................

3、............................42.1系统概述........................................................42.2系统的工作原理.....................................................42.3设计方案选择.....................................................52.3.1电磁阀阀值控制方案论证系统....................................

4、.52.3.2显示方案选择....................................................62.3.3信号放大环节方案选择............................................62.3.4皮中测量方案选择................................................7第三章系统硬件设计....................................................83.1称重单元.................

5、.......................................83.1.2精密放大器...................................................93.1.3数模转化电路................................................123.2.80c51单片机示意图及应用.........................................143.3键盘及其显示单元.......................................

6、......16水泥包装机毕业论文3.4称重显示单元.................................................203.5报警控制.....................................................223.6压袋落袋装置及传送带..........................................223.7电源设计.....................................................24第四章系统软件设计.......

7、........................................254.1主程序设计..................................................254.2自检.....................................................274.3中断服务程序INTO............................................294.4模数转换子程序...........................................

8、.314.4.1ICL7135软件部分........................................314.4.2抗干扰部分...........