1、吉林建筑工程学院电气信息工程系课程设计第页 共页摘 要 在工农业生产过程中，经常需要对水位进行测量和控制。水位控制在日常生活中应用也相当广泛，比如水塔、地下水、水电站等情况下的水位控制。而水位检测可以有很多种实现方法，如机械控制、逻辑电路控制、机电控制等。本文的水箱水位控制系统采用交流电压检测水位，水位低于下限 B 点水位时，水泵抽水，水位达到最高水位线 A 时，水泵停止抽水，水位降低到最低水位线B 以下时，恢复运行抽水从而实现自动控制。随着世界人口的不断增长，人们生活用水的增加，以往采用的继电器水塔水位自动控制系统由于频繁操作会产生机械磨损，不方便维护和更新，已经不能满足人们的实际需求。而自
2、动控制原理, 依据用水量的变化自动调节系统的。保持水位恒定满足用水要求, 从而提高了供水系统的质量，而且成本低、安装方便、灵敏性好、是节约水源、方便家庭和单位控制水塔水位的理想装置。关键词: 水箱水位 ； 交流电压检测 ；自动控制吉林建筑工程学院电气信息工程系课程设计第页 共页ABSTRACTTraditional water tower water level control system of low control precision, large energy consumption of existing shortcomings, and the automatic control
3、 theory, on the basis of the change of water use of automatic regulation system, maintain a constant water level in order to meet the requirements of water, thereby improving the quality of water supply system. But also has low cost, convenient installation, good sensitivity, is saving water, conven
4、ient family unit and control the water level in water tower device.In industry and agriculture production process, often need the water level measurement and control. Water level control in daily life in a wide range of applications, such as water, groundwater, hydropower station under the condition
5、 of water level control. However, as the world population grows, people living water increased, the former relay water tank water level automatic control system due to the frequent operation will produce mechanical wear, convenient maintenance and updates, has been unable to meet the actual needs of
6、 the people.Water tower water level control system with AC voltage detection of water level, water level below the lower limit of B water level, water pump, the water level reaches the highest water level A, the water pump stops pumping, to lower the water level to the lowest water level below B, resumed pumping. In order to achieve automatic control.Keywords: water tower water level ; AC voltage detector ; automatic control
