Water Level Sensor Working Principle

The sensor produces an output voltage according to the resistance which by measuring we can determine the water level.

Water level sensor working principle.

It will vary wildly between open circuit for distilled water to a few kilo ohms or less for salty water. Take a look at the ultrasonic level sensor working principle above. The resistance will be a function of water level impurities in the water and time. The less water the sensor is immersed in results in poor conductivity and will result in a higher resistance.

The water level indicator includes a simple mechanism which helps to detect and indicate the water level in an overhead tank or any other water container the sensing is done by using a set of nine probes which are placed at nine different levels on the tank walls with probe 9 to probe 1 placed in increasing order of height common probe i e. A water rotor along with a hall effect sensor is present the sense and measure the water flow. A liquid level control system by using a float sensor works on the principle of buoyancy which states a float immersed in a liquid is buoyed towards upward direction by an applied equal force to the weight of the displaced liquid as a result the body drives partially and gets submerged upon the liquid surface and covers the same distance the liquid level moves. This water level controller will use two components the ultrasonic sensor and relay board.

There is a special program that executes the sensor. Ultrasonic level sensor working principle. That is not a water level sensor. Water flow sensor consists of a plastic valve from which water can pass.

The distance for the motor to turn off and on needs to be specified. It just detects if water is there. Water level sensor pinout.