Ultrahangos

Ultrahangos is a term used to describe technologies and methods that employ ultrasound, sound waves with frequencies above the upper limit of human hearing (roughly 20 kHz). In Hungarian and several other languages, ultrahangos is the common adjective for devices, techniques, and processes that use such high-frequency waves.

In medicine, ultrasonic techniques are widely used for imaging, diagnosis, and therapy. Ultrasonography or diagnostic ultrasound typically operates in the 2–15 MHz range to produce real-time images of internal organs, vessels, and fetuses. Therapeutic ultrasound uses higher intensities for tissue heating, fragmentation, or targeted ablation, including modalities like high-intensity focused ultrasound (HIFU). Safety and operator training are important considerations in medical contexts.

Industrial and scientific applications include ultrasonic cleaning, which uses cavitation in liquids to remove contaminants from delicate objects. Ultrasonic welding and riveting employ high-frequency vibration to join materials such as plastics or metals. Ultrasonic machining and drilling enable precision work on hard or brittle materials, often with minimal mechanical contact.

Non-destructive testing and materials characterization also rely on ultrasonics. Ultrasonic methods assess thickness, detect internal flaws, and evaluate material properties, typically in the range of roughly 0.5–20 MHz depending on the application and required resolution.

Other common uses include sonication for sample preparation, emulsification, dispersion, and aiding chemical reactions in research and industry. While ultrahangos technologies offer many benefits, they require appropriate safety considerations, device standards, and, in medical contexts, professional oversight to mitigate risks such as tissue heating or cavitation damage.