Capacitive Water Level Sensor Circuit Diagram. The capacitive level sensor has the 2 conducting plates in the form of 2 electrically isolated aluminium tubes a smaller tube in a larger tube. Level is the length submerged into liquid.
It is this difference that will be measured with the capacitive level sensor. This is a very useful technique and has been used in later designs to create a portable liquid level sensor for locating the exact height of liquid in a plumbing system. Level is the length submerged into liquid.
Since εr water εr air the capacitance of the sensor can be approximated by the capacitance of the submerged section.
Water level sensor circuit diagram. The capacitive level sensor has the 2 conducting plates in the form of 2 electrically isolated aluminium tubes a smaller tube in a larger tube. Whenever tank gets filled we get alerts on particular levels. Capacitive water level sensor fun to make.
