Ultrasonisk

Ultrasonisk refers to sound waves with frequencies above the upper limit of human hearing, typically exceeding 20 kilohertz (kHz). These high - frequency mechanical waves are generated and detected using piezoelectric transducers, which convert electrical energy into ultrasonic vibrations and vice versa.

In medical applications, ultrasonics is widely used for diagnostic imaging, such as B - mode ultrasound, which creates real - time visualizations of internal tissues and organs. It is also employed in therapeutic procedures, including lithotripsy to break down kidney stones.

Industrial uses include non - destructive testing (NDT) to inspect materials for defects, ultrasonic cleaning to remove contaminants from surfaces, and ultrasonic welding to join plastics.

The technology relies on the principle that ultrasonic waves can penetrate various media and reflect off boundaries between different materials, allowing for detection and measurement. Safety considerations include potential risks from prolonged exposure to high - intensity ultrasonic beams, though regulated use mitigates these concerns.