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A sensor is essentially any material or equipment that can detect an abstract or physical attribute.We are surrounded by sensors, and sensors successfully measure and detect many processes that occur around us. Let’s take an example of the human body - It relies on the 5 sensory organs; eye, ears, nose, tongue, and skin - to function properly.
An ultrasonic sensor is an electrical device that uses ultrasonic sound waves to determine the distance to a target item. It is a demanding instrument in robotics as well as in industrial purposes.