induksjonssløyfesensor

An induksjonsløkkesensor, also known as an induction loop detector or just a loop detector, is an electromagnetic sensor used to detect vehicles. It works by creating a loop of wire buried in the pavement, which generates a magnetic field when an electrical current flows through it. When a metal object, such as a vehicle, passes over or enters the magnetic field, it disrupts the field, causing a change in inductance. This change is detected by the sensor, which can then signal the presence of a vehicle.

These sensors are commonly found in traffic control systems, such as traffic lights, where they can detect the presence of waiting vehicles and adjust signal timing accordingly. They are also used in automated toll collection systems, parking management, and at railway crossings to detect approaching trains. The sensitivity of the loop can be adjusted to detect different types of vehicles or even specific axle counts.

Induksjonsløkkesensorer are a reliable and widely adopted technology for vehicle detection due to their durability and cost-effectiveness. They are less affected by weather conditions compared to some other sensing methods. The installation involves cutting slots in the road surface to embed the wire loop, which is then connected to a control unit. The size and shape of the loop can be customized to optimize detection for specific applications.