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Article #15896Motion Sensors - how do they work ?
From: Rajminder Singh
Date: Sun, 20 Dec 1992 05:05
Date: Sun, 20 Dec 1992 05:05
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Hi, I was just curious to know how motion sensors work ? We have one installed in our lounge which turns the lights 'On' when someone enters the room. If someone moves in the lounge, an LED mounted on the sensor turns on and goes off as soon as the movement is stopped - is this a pressure transducer at work ? Rajminder Singh
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Path: arc1-ca.pugleaf.net!sparky!uunet!usc!rpi!bu.edu!bass.bu.edu!raju From: raju@bass.bu.edu (Rajminder Singh) Newsgroups: sci.electronics Subject: Motion Sensors - how do they work ? Message-ID: <105342@bu.edu> Date: 20 Dec 92 05:05:01 GMT Sender: news@bu.edu Reply-To: raju@bass.bu.edu (Rajminder Singh) Followup-To: sci.electronics Organization: Boston University Lines: 9