A high frequency motion sensor (HF) is a sensor that uses microwave waves to detect the movement or presence of objects in its environment.
The operation of a microwave sensor is based on the Doppler principle, which states that the frequency of an electromagnetic wave changes as a result of the movement of a wave source or observer. The microwave sensor generates high-frequency microwave waves and receives the reflected waves from surrounding objects. It then analyses changes in the frequency of the reflected waves to detect movement.
A microwave sensor can have freely customisable parameters such as wave frequency, emission power and sensitivity. This allows the sensor to be tailored to the specific application and environment in which it is used.
The advantage of microwave sensors is that they work through a variety of materials, such as glass, plastic or wood, making them more versatile than PIR sensors. RCRs may be more susceptible to interference from other sources of microwave waves, such as microwaves or communication antennas.
Microwave sensors are widely used in alarm, lighting and home automation systems. They can be mounted outdoors or indoors, depending on the specific application. When motion is detected, the microwave sensor can send a signal to the alarm system, switch on lights or trigger other automatic actions.