全自动水位控制器.

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1、河北科技学院学生毕业设计（论文）题目：自动水位控制器作者：芦琦学号：Z12132108系别：机电工程系专业：电气自动化年级：12级指导教师：完成日期：2014年5月13日目录摘要·································································Ⅱ关键词································································Ⅱ第一章水位控制器电路设计方案·································

2、····················51.1绪论·····················································51.2水位控制器性能指标·····················································61.3水位控制器设计方案·····················································61.3.1水位检测电路···············································

3、······61.3.2降压整流电路·····················································91.3.3浮力开关·····················································111.3.4电磁继电器的选择·····················································111.3.5输出控制·····················································12第二

4、章水位控制器电路设计·····················································122.1系统电路原理·····················································122.2元件参数·····················································14第三章水位控制器实验·····················································153.1水位控制器实验····

5、·························································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

6、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、

7、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AbstractWatertowerwaterlevelautomaticcontrollerisprimarilyusedwithpumps,accordingtothechangeofthewatertowerwaterleveltostartandstop.Suitableforagriculturalandindustrialandcivilwatersupplyautomatically.Thiscircuitincludes

8、waterdetection,waterpumpswitchcircuitandpowercircuitthreeparts.Waterlevelmeasurementcircuitfunctionistheuseofw