The characteristics of the emitters and sensors we can find the answer for sending infrared signals is:
The transmission of information through the air uses a variety of methods, from audible signals, infrared, microwave. Detectors in the required energy range. The emission and reception of signals requires electromagnetism that emits res in the range of energy required to have, in general the emitter and the detector must have the same spectral response range.
The emission of light signals requires sensors that emit visible light.
Infrared signal emission uses infrared detectors, for example TV remote controls.
The emission of microwave signals must use magnetrons that emit microwave, for example cell phones.
Motion detectors use multiple or pixelated sensors to detect the movement of objects.
Let's analyze the claims for the emission of IR signals.
False. This visible range is more energy than infrared.
False. Remote controls use wavelengths between 800nm to 1200nm.
True. IR sensors are suitable for IR signals.
False. Motion sensors are sensors with multiple detectors to measure the movement of objects.
In conclusion, using the characteristics of the emitters and sensors we can find the answer for the sending of infrared signals is:
- Infrared sensors in the same energy range.
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