Many people encounter automatic doors on a daily basis—supermarkets, commercial stores, and hospitals are just some examples of places you may have seen these entrances. But how do they work? All automatic doors operate with sensors, which trigger an electric drivetrain that opens and closes access via rubber belts and rollers. Which sensors are used varies from door to door, but there are several types commonly enlisted. 

Types of Sensors in Automatic Doors

• Infrared Sensors: Infrared technology detects changes in temperature. This means the sensors will trigger the door to open when they identify your body temperature. 

• Motion Sensors: Also known as optical sensors, motion sensors recognize movement in front of the automatic doors via a microwave beam. This beam is generally directed down, so it points toward people walking to or from the entrance.

• Pressure Sensors: Think of pressure sensors as the original sliding door technology. They sense changes in weight on specific areas of the ground. If the weight in a particular spot is higher than the pre-set limit, the doors will open.

These sensors carry their own sets of pros and cons, so many automatic door systems use a combination of them. For instance, if someone is walking too slowly to be detected by motion sensors, infrared sensors may still pick up on their body heat and open the doors for them. A combination of sensors also improves the safety of automatic doors. A pressure mat can keep the entrance open for people with mobility issues, rather than risking the doors sliding closed while they’re still making their way in or out.

Southern Ohio Door Controls in Cleves, OH, was founded in 1983 with one goal: To offer customers high-quality door installation and repair services at respectable prices. Serving the Ohio, Kentucky, and Indiana areas, their professional team provides same-day service around the clock. For a free estimate, call (513) 353-4793 or visit their website.