自动水位控制器设计.doc

目录摘要·································································Ⅱ关键词································································Ⅱ第一章水位控制器电路设计方案·····················································5 1 . 1 绪论·····················································5 水位控制器性能指标·····················································6 水位控制器设计方案·····················································6 水位检测电路·····················································6 降压整流电路·····················································9 1 . 3 . 3 浮力开关····················································· 1 1 电磁继电器的选择····················································· 11 1 . 3 . 5 输出控制····················································· 1 2 第二章水位控制器电路设计····················································· 12 2 . 1 系统电路原理····················································· 1 2 2 . 2 元件参数····················································· 1 4 第三章水位控制器实验····················································· 15 水位控制器实验····························································· 15 总结····························································4 参考文献·····················································5 致谢·····················································6 摘要水塔水位自动控制器主要用途是配合水泵,根据水塔水位高低的变化来启动及停止。适用于工农业及民用自动供水。本电路包括水位检测电路、水泵开关电路和电源电路 3部分。水位测量电路的功能是利用水的导电性检测水位的变化, 水泵开关电路的功能是完成控制电路和水泵是否工作,显示电路的功能是显示水泵是否在工作。电源电路则为以上电路提供直流电源。基于对 555 芯片的了解和低压继电器的学习,本控制器利用 555 芯片设计而成,并在实验室进行了仿真实验。本控制器适用于家庭住宅、学校、工厂、宾馆、办公、楼宇的自来水水塔(水池)式增压供水与江河井水控制,以及供水、消防、轻工、印染、化纤、造纸、化工、食品、饮料、酿造、制糖、养殖、工矿、农业、水处理等行业的给排水和其它生产用液体供给排放。关键词:水位控制 NE555 继电器浮力开关数字电子 Abstract Water tower water level automatic controller is primarily used with pumps, according to the change of the water tower water level to start and stop. Suitable for agricultural and industrial and civil water supply automatically. This circuit includes water detection, water pump switch circuit and power circuit three parts. Water level measure