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KJT ultrasonic sensor is a sensor that converts ultrasonic signals into other energy signals (usually electrical signals). Ultrasound is a mechanical wave with a vibration frequency higher than 20kHz. It has the characteristics of high frequency, short wavelength, small diffraction phenomenon, especially good directivity, and can become rays and propagate in a direction. Ultrasonic waves have great penetration ability into liquids and solids, especially in solids that are opaque to sunlight. When ultrasonic waves hit impurities or interfaces, they will produce significant reflections to form reflection echoes, and when they hit moving objects, they can produce the Doppler effect. Ultrasonic sensors are widely used in industry, medicine, biomedicine and other fields.
