What is a microwave movement detector?
The microwave detector is a device that uses a doppler radar to detect and measure the movement of the object. For most people, the two most famous forms of this mechanism are used in the domestic safety system and in coercive organs. Another known application is the use of a microwave detector to operate lighting devices on a person entering or leaving the area.
The microwave detector is usually the only unit device that emits a microwave pulse and then detects its reflection. The calculation of the time required for reflection and the frequency change determines the distance, direction and speed of the observed object. Direction and speed are calculated on the basis of the Doppler effect. Most experience Doppler's effect when hearing a train or other vehicle approaching them; The sound seems to move higher as the object approaches and lower as it moves away.
in security applications, a micro -avetector of AVE movement is usually paired with an infrared motion detector. To should reduce the possibility of false alarms. For example, microwave motion detector can detect the movement of an inanimate object behind a wall or door, such as the limb of the wind of the wind. If the infrared sensor also detects body heat, the probability that the detected object is an intruder, is increased and the safety system can perform the required function.
When checking traffic and enforcement of law, the radar weapon is the most famous type of microwave detector. Permanently fixed detectors have the ability to monitor the speed and direction of vehicles and can be used to start cameras; traffic signals; or other control devices such as gateway. Some vehicles use a car movement detector to avoid collisions and provide theft functions.
Production or industrial applications use movement sensors as a type of inspection in production and packaging operations. Sensors can alert operaTory to change the speed of assembly or staging the finished product. Automated material handling devices also use sensors when storage with a computer.
microwave motion detector is also often used in larger commercial buildings as an energy control tool. Turning the light when the person enters the room and then turns them off after a certain period of time, if the person leaves or stops moving, has proved to be quite effective in reducing operating costs. Sensors can also serve a safety way - not as a device for preventing theft, but as a protection against slides and falls due to poor lighting conditions.
used separately, microwave detectors have certain disadvantages. They are able to detect movement behind non -metallic objects, which increases the occurrence of false alarms. They can also be deceived by slow side movement due to Sensor. Another drawback is energy consumption; Are usually programmed to signalAle at intervals to reduce energy consumption, and this could allow intruders from being detected.