Ultrasonic Sensor
An ultrasonic sensor is a device that uses high-frequency sound waves to measure distance or detect the presence of objects. It emits ultrasonic pulses and measures the time it takes for the echoes of these waves to return after bouncing off an object. This time delay is used to calculate the distance to the object based on the speed of sound in air. Ultrasonic sensors are commonly used in applications such as obstacle detection, level measurement, and proximity sensing.
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