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A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.
Contact image sensor; Electro-optical sensor; Flame detector; Infra-red sensor; Kinetic inductance detector; LED as light sensor; Light-addressable potentiometric sensor; Nichols radiometer; Fiber optic sensors; Optical position sensor; Thermopile laser sensors; Photodetector; Photodiode; Photomultiplier; Photomultiplier tube; Phototransistor ...
2.8.3 Motion detectors. 2.8.4 Main equipment. ... One solution is to place a motion sensor in each room, as this can be expensive an alternative is to place one ...
However, initial size, power consumption and price had prevented their mass adoption in consumer electronics. While there are other kinds of motion detector technologies available commercially, there are four principle types of motion sensors which are important for motion processing in the consumer electronics market.
[2] Since the output of an inductive sensor has two possible states, an inductive sensor is sometimes referred to as an inductive proximity switch. [2] [3] The sensor consists of an induction loop or detector coil. Most often this is physically a number of turns of insulated magnet wire wound around a high magnetic permeability core, such as a ...
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A PIR sensor can detect changes in the amount of infrared radiation impinging upon it, which varies depending on the temperature and surface characteristics of the objects in front of the sensor. [2] When an object, such as a person, passes in front of the background, such as a wall, the temperature at that point in the sensor's field of view ...
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