#capacitivelevelsensor

If you are searching for a level sensor which is good for measuring powders, liquids, powders, slurries, granular solids and other kinds of materials, a capacitive level sensor may be the perfect instrument you need.

How the Operation of Capacitive Level Sensors Takes Place?

The capacitive level sensors work with two electrodes which form a capacitor. It generally works in the structure of two metal plates which are parallel to each other. The structure includes an insulating material which separates them. This material must be non-conductive and dielectric.

In simple terms, capacitors work as a storage unit for electrostatic energy in any electric field. Therefore, the ability of a capacitor ability to store the energy increases as the voltage is supplied to the whole circuit. This measurement is called capacitance. The increase in insulating material’s volume also takes place.

How the Capacitive Level Sensors Work?

When capacitors are working as level sensors for packaging machines or other applications, they function by processing capacitance in reference to the material’s dielectric constant. Here, the dielectric constant is measured. Plus, the voltage is used for the completion of the circuit. All these measurements determine the different levels of the vessel. High levels of dielectric material provide great capacitance. This means that the former could be gauged with the latter easily.

This technique of measuring levels is sometimes known as RF level sensing, when the radio frequencies are applied to the circuit of capacitors.

For example, let us say that we measure a solution of high-capacitance which is stored in a huge tank of metal. The two electrodes form the capacitor in such a way that a conductive probe similar to a metal plate, and to the wall of vessel.

Importance of RF Level Sensing

When an RF signal gets activated, it causes a flow of low current within the solution. The current differentiates in accordance with the amount of solution within the metal tank. This difference is detected with the help of a capacitor switch. Then, it is translated and the suitable output is given for the particular application.

Benefits of Capacitive Level Sensors

Capacitive level sensors are not only capable of working with a wide range of applications and materials, but they also beneficial because they are mechanically simple. No moving parts are included and minimal efforts are required for maintenance. Also, they work great for both continuous and point level measurements. Plus, they have resistance for agitation.

Generally, capacitive sensors are used in airplanes to gauge the fuel. They also help take care of the need of the other engine. This is because they are accurate in spite of agitation and turbulence.