Explain the functioning of Ultrasonic sensor.
时间: 2024-06-01 12:11:21 浏览: 124
An ultrasonic sensor works by emitting high frequency sound waves and then listening for the echo that bounces back. The sensor sends out a sound wave at a frequency above the range of human hearing, typically around 40 kHz. This sound wave travels through the air until it encounters an object in its path. When the sound wave hits the object, it is reflected back towards the sensor.
The ultrasonic sensor then measures the time it takes for the sound wave to return. By knowing the speed of sound in air and the time it took for the sound wave to return, the sensor can calculate the distance to the object.
This distance information can be used for a variety of applications, such as obstacle detection, distance measurement, and even object tracking. Ultrasonic sensors are commonly used in robotics, automotive applications, and industrial automation.
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