Automatic doors are powered open and closed either by power, spring, or both. There are several methods by which an automatic door is activated:

  • Mechanism of the sliding door of an elevator
  • A sensor detects traffic is approaching. Sensors for automatic doors are generally:
  • A pressure sensor – e.g., a floor mat which reacts to the pressure of someone standing on it.
  • An infrared curtain or beam which shines invisible light onto sensors; if someone or something blocks the beam the door is triggered open.
  • A motion sensor uses low-power microwave radar for the same effect.
  • A remote sensor (e.g. based on infrared or radio waves) can be triggered by a portable remote control, or is installed inside a vehicle. These are popular for garage doors.
  • A switch is operated manually, perhaps after security checks. This can be a push button switch or a swipe card.
The act of pushing or pulling the door triggers the open and close cycle. These are also known as power-assisted doors. In addition to activation sensors automatic doors are generally fitted with safety sensors. These are usually an infrared curtain or beam, but can be a pressure mat fitted on the swing side of the door. The purpose of the safety sensor is to prevent the door from colliding with an object in its path by stopping or slowing its motion.

Automatic Door Uses

Because these doors have sensors to automatically open and close with approaching traffic, they are perfect for busy stores, shopping malls, airports, hospitals, major event venues and more. Hospitals utilize automatic doors throughout their facilities so that their nursing staff and medical teams can get patients in and out with ease.  Automatic doors are also a lifesaver for the disabled population.
Austin Doors has been installing and repairing automatic doors for businesses since 1990.  We offer 24/7 emergency service!  Call us today  at 760-599-2611