ir sensor

ALL ABOUT
IR SENSORS

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What is an IR Sensor?

An Infrared sensor is a device that detects infrared radiations in its environment and outputs an electric signal. 

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working of ir sensor

Working of an IR Sensor

An IR proximity sensor works by applying a voltage to a pair of IR LEDs which in turn, emit infrared light. 

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ir proximity sensor

1. Active IR Sensor


2. Passive IR Sensor

Types of  IR Sensors

(includes both the transmitter & the receiver)

(includes only detectors)

Applications

-Radiation thermometers
-Human body detection
-Burglar alarm
-Item counter
-Proximity sensor
-Gas analyzers