KJT ultrasonic sensors are transducers that convert ultrasonic signals into other energy signals (usually electrical). Ultrasonic waves are mechanical waves with a vibration frequency higher than 20kHz. It has a high frequency, short wavelength, small bypass phenomenon, especially good directionality, can become a ray and directional propagation and other characteristics. Ultrasonic waves on the liquid, solid penetration ability is great, especially in the sun opaque solids. Ultrasonic waves encountered impurities or interfaces will produce a significant reflection of the formation of reflective echoes, encountered the Doppler effect can be generated by moving objects. Ultrasonic sensors are widely used in industry, defence, biomedical and other aspects.
