RFlähedusandurid

RFlähedusandurid, which translates to RF proximity sensors, are electronic devices used to detect the presence of objects within a specific range using radio frequency signals. These sensors operate by emitting a radio frequency field and measuring changes in that field caused by the proximity of a target object. When an object enters the sensor's detection field, it absorbs or reflects some of the emitted radio waves, altering the characteristics of the returning signal. The sensor's internal circuitry analyzes these changes and triggers an output signal, indicating the object's presence.

Unlike optical sensors that rely on light, RF proximity sensors are not affected by dust, dirt, smoke, or ambient light conditions, making them suitable for harsh industrial environments. They can also detect non-metallic objects, which can be a limitation for inductive proximity sensors. The detection range is typically adjustable and depends on factors such as the sensor's design, power output, and the material properties of the target object. Common applications include automation, material handling, and security systems where reliable object detection in challenging conditions is required.