简介： Ultrasonic sensors are sensors that convert ultrasonic signals into other energy signals (usually electrical signals).Ultrasonic waves are mechanical waves whose vibration frequency is higher than 20kHz.It has the characteristics of high frequency, short wavelength, small diffraction phenomenon, especially good directionality, can become a ray and directional propagation.Ultrasonic wave of liquid, solid penetration ability is very big, especially in the sunlight opaque solid.Ultrasonic waves enc

Ultrasonic Sensor

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