Working principle and characteristics of infrared sensors 2

Working Principle:

1. Principle of infrared radiation sensing: Objects emit infrared radiation of different wavelengths due to different temperatures, and infrared sensors identify objects by detecting this infrared radiation.diode

2. Infrared emitter tube: The infrared sensor contains an infrared emitter tube, which is used to emit an infrared beam.

3. Infrared receiver: The sensor is also equipped with an infrared receiver to receive infrared radiation in the environment.

4. Signal processing: Infrared signals are converted into electrical signals through processing circuits, and then accurate signals are obtained through amplification, filtering, and other measures.diode

Features:

1. Non contact: Infrared sensors do not require contact with objects and are suitable for situations that require avoiding pollution or maintaining a safe distance.diode