Liquid Level Control System with arduino Uno and Labview

Abstract

The control of the level of liquids inside the tanks is urgently needed by a lot of industrial applications, because it is very important in the success of the productive cycle in industrial fields.
This paper aims to design a liquid level control system in a tank in terms of (height and low), by controlling the tank filling pump as well as controlling the fluid discharge valve by setting the user to the set points that determine the level of fluid required within the tank, through the control panel (front panel), where the minimum level and highest level of liquid has been set, So that the liquid does not rise from the top level and the same for the minimum level. The actual value of the liquid level inside the reservoir is compared with the control points using the Arduino Uno controller, liquid level are sensed inside the tank by using the ultrasonic sensor and send those signals to the arduino controller to issue the appropriate command of the pump and valve in terms of opening and closing.
The Labview program was used to write the code for the control system as well as to load the code on the Arduino Uno microcontroller and to run the system in practice. The actual level of the liquid was actually was sensed and displayed on the control panel in the Labview program, where running the pump and valve in different cases in suitable time.