mikrobølgebevægelse

Mikrobølgebevægelse, also known as microwave motion, refers to the detection of movement using microwave signals. This technology relies on the Doppler effect, where the frequency of a reflected microwave signal changes if the object it bounces off is moving. A sensor emits microwave signals and analyzes the frequency of the returning waves. If a difference in frequency is detected, it indicates motion.

Microwave motion detectors are known for their ability to penetrate non-metallic obstacles like walls and glass, allowing for detection through these materials. This makes them versatile for various applications, including security systems, automatic doors, and lighting controls. However, their sensitivity to movement can also be a drawback, as they might trigger falsely due to non-human movement such as vibrating objects or air currents.

The range and sensitivity of microwave motion detectors can be adjusted, and they are often used in conjunction with other sensing technologies, like passive infrared (PIR) sensors, to create more robust and accurate motion detection systems. The choice between microwave and other motion detection technologies often depends on the specific environment and the required performance characteristics.