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A doormat or door-mat [1] is a flat, usually rectangular but sometimes oval, object, usually placed immediately outside or inside the entrance to a house or other building, to allow people to easily scrub or wipe the soles of their shoes before entering.
Doormat may refer to: . Mat, a piece of fabric material that is placed on a floor or other flat surface "Doormat", song by No Doubt on their 1992 album No Doubt "Doormat", song by Spazz on their 1994 album Dwarf Jester Rising
The automatic door used a mat actuator. In 1960, they co-founded Horton Automatics Inc and placed the first commercial automatic sliding door on the market. [5] With the invention of the Gunn diode, microwave motion detectors became common in automatic doors in the 1970s. [6] [7] In 1980, the first automatic door using an infrared sensor was ...
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The approach side mat is often used as a trigger sensor. The swing side mat prevents the door from starting to open as long as some other person is detected in the swing area; once the door starts opening, this mat is ignored, as it will sense the user going through. Today, infrared safety sensors or laser safety sensor are normally used. Four ...
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