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Advantage of proximity sensor?
It is a type of sensor that detects infrared and hence cause a variation in resistance.
A proximity sensor is used for detecting close objects by emitting an electromagnetic field. These are useful for detecting objects without touching them.
Without physical contact detecting the presence of objects is the purpose of proximity sensors. They work based on inductive, magnetic, photoelectric and capacitive properties of objects.
A proximity sensor is designed to detect when something comes into a given range of the object in which it is installed. For example, car manufacturers are beginning to use proximity sensors in car bumpers to aid drivers in parallel parking. When a vehicle is maneuvering and comes near another parked car, it gives off a warning. In naval warfare, submarines fire torpedoes which are wired with a proximity fuse which will detonate the payload when the weapon gets near the target.
Infrared proximity sensor.
TSOP 17398 works in the sense that it is an optical transmitter that needs to be triggered by an infrared sensor in most cases. It is easy to activate.
PIR = passive infared They detect motion and then activate a switch to turn things on and off
Advantage of proximity sensor?
photoelectric sensor-sense both metal & non-metal proximity sensor -sense metal only
No, the ZTE Score X500 does not have an infrared illuminator -- what you're seeing (on the upper right of the phone, right? The rapidly blinking red LED?) is the proximity sensor.
It is a type of sensor that detects infrared and hence cause a variation in resistance.
A limit switch turns on or off when the object being sensed reaches a specific location.A proximity sensor returns an analog signal indicating how far the object is from the sensor.
Proximity sensor allows the Mobile display to off during call when mobile is near to ears.
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A proximity sensor is used for detecting close objects by emitting an electromagnetic field. These are useful for detecting objects without touching them.
there are different types of proximity sensors namely inductive capacitance and infrared. the working principle of inductive proximity sensor is, it consists coil, oscillator, detector and trigger circuit. when current flows through a coil magnetic field will be generated and when the metal get contact with that field the voltage is induced in the metal the detector detects this loss in voltage and triggering circuit will give the contact output... praveen achalkar MCF mangalore