Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Examples of the use of ultrasound and its frequencies.
| Ultrasound Use | Frequencies |
|---|---|
| Clean jewelry, lenses, watches, instruments | 20–40 kHz |
| Clean teeth (break down bacterial plaque) | 1.6 MHz |
| Lithotripsy | 100–200 kHz |
| Phacoemulsification cataract (torsional Ozil) | 32 kHz |
| Phacoemulsification cataract (NeoSoniX system) | 120 Hz |
