Distance sensors operate according to the procedure of time passing: a beam of light is emited and it covers a certain distance, meets an object and it is reflected back, towards the source. In this way, we can measure the time needed for the light beam to cover the distance between its source and the object and backwords.


Description:
Distance sensors operate according to the procedure of time passing: a beam of light is emited and it covers a certain distance, meets an object and it is reflected back, towards the source. In this way, we can measure the time needed for the light beam to cover the distance between its source and the object and backwords. Since the speed of light is constant, we can calculate the distance covered using as input data the time that elapsed.
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