What is a water level sensor?

What is a water level sensor?
The water level sensor is a device that measures the liquid level in a fixed container that is too high or too low. According to the method of measuring the liquid level, it can be divided into two types: contact type and non-contact type. The input type water level transmitter we call is a contact measurement, which converts the height of the liquid level into an electrical signal for output. It is currently a widely used water level transmitter.
How does the water level sensor work?
The working principle of the water level sensor is that when it is put into a certain depth in the liquid to be measured, the pressure on the sensor’s front surface is converted into the liquid level height. The calculation formula is Ρ=ρ.g.H+Po, in the formula P is the pressure on the liquid surface of the sensor, ρ is the density of the liquid to be measured, g is the local acceleration of gravity, Po is the atmospheric pressure on the liquid surface, and H is the depth at which the sensor drops into the liquid.

The level sensor is a device designed to monitor and measure liquid (and sometimes solid) levels. When the liquid level is detected, the sensor converts the sensed data into an electrical signal. Level sensors are mainly used for monitoring reservoirs, oil tanks or rivers
Where to use water level sensors?
The uses of water level sensors include the following applications:
1. Water level measurement of pools and water tanks
2. Water level measurement of rivers and lakes
3. Marine level measurement
4. Level measurement of acid-base liquids
5. Oil level measurement of oil trucks and mailboxes
6. Swimming pool water level control
7. Tsunami warning and sea-level monitoring
8. Cooling tower water level control
9. Sewage pump level control
10. Remote monitoring of the liquid level