Sensors are the most critical components in any automatic door system. They determine when the door opens, stays open, or closes, and they play a major role in preventing accidents.
Radar sensors detect motion using microwave signals. They are highly responsive and ideal for busy entrances such as shopping malls and airports. However, they may react to unwanted movement if not properly adjusted.
Infrared sensors detect presence rather than motion. These sensors are commonly used as safety devices to keep the door open when someone is standing in the doorway. They are essential for pedestrian protection.
Ultrasonic sensors emit high-frequency sound waves and measure the reflected signal. They are highly accurate in controlled environments like hospitals or clean rooms where movement may be slow.
Many modern automatic doors use dual-technology sensors, combining radar and infrared detection. This reduces false triggers and improves reliability in challenging environments.
Regular cleaning, alignment, and calibration of sensors are essential. Dirty lenses or misaligned sensors can cause doors to open randomly, close too early, or stop functioning altogether.
Leave A Comment