Electrical Engineering

What is the technology behind an automatic door?

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2011-03-16 11:44:40
2011-03-16 11:44:40

Automatic doors use a motion sensor, or optical sensor. The sensors are usually based at the top of the door, slightly in front of it, so that it can detect when someone becomes near to the door and trigger it to open as a result. They are ideal for busy shops or industrial buildings, where having regular doors may cause congestion or be a safety hazard.

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