kapacitívak

Kapacitívak, often referred to as capacitive sensors, are non-contact sensors that detect the presence of objects by measuring changes in capacitance. Capacitance is the ability of a system to store an electric charge. In a capacitive sensor, this principle is utilized by creating an electric field between a sensing electrode and the object being detected.

When an object enters the sensor's electric field, it alters the capacitance between the electrode and the object. The sensor's internal circuitry detects this change and generates an output signal indicating the presence or absence of the object. Capacitive sensors can detect a wide range of materials, including conductive, non-conductive, solid, and liquid substances. The sensing range typically varies depending on the sensor's size, design, and the dielectric properties of the target object.

These sensors are widely used in various industrial and consumer applications. In manufacturing, they are employed for level detection of liquids and solids in tanks, presence detection of parts on assembly lines, and as proximity switches. In consumer electronics, capacitive sensing is the technology behind many touchscreens, allowing for interactive user interfaces. Their ability to operate without physical contact makes them suitable for applications where contamination or wear is a concern. They are also known for their durability and resistance to environmental factors such as dust and moisture.