Ultrasound sensors becoming cheap, miniaturized and ultrasensitive leading to wide employment in automotive, healthcare, industrial, and electronics.

As the name indicates, ultrasonic sensors measure distance by using ultrasonic waves. The basic working principle of these sensors is based on echolocation, which involves transmission of ultrasonic waves to the target object, which reflects it back to the source after receiving the initial wave. The ultrasonic sensors detect the exact position of the object by calculating the distance from the original source “echo”, generated by the object.