Ultrasonic Frequency Spectrum
Ultrasound is cyclic sound pressure with a frequency greater than the upper limit of human hearing. Although this
limit varies from person to person, it is approximately 20 kilohertz (20,000 hertz) in healthy, young adults and
thus, 20 kHz serves as a useful lower limit in describing ultrasound. The production of ultrasound is used in many
different fields, typically to penetrate a medium and measure the reflection signature or supply focused energy.
The reflection signature can reveal details about the inner structure of the medium. The most well known
application of this technique is its use in sonography to produce pictures of fetuses in the human womb. There are
a vast number of other applications as well. - Wikipedia
| Application | 0 Hz | 10 Hz | 100 Hz | 1 kHz | 10 kHz | 18 kHz | 50 kHz | 100 kHz | 200 kHz | 1 MHz | 10 MHz | 20 MHz | 100 MHz |
| Oil Well Drilling | |||||||||||||
| Brazing | |||||||||||||
| Thickness Gauging | |||||||||||||
| Chemical Processing | |||||||||||||
| Cleaning | |||||||||||||
| Degassing | |||||||||||||
| Flaw Detection | |||||||||||||
| Degreasing | |||||||||||||
| Welding | |||||||||||||
| Dispersing | |||||||||||||
| Flow Metering | |||||||||||||
| Electroplating | |||||||||||||
| Sonar | |||||||||||||
| Impregnating | |||||||||||||
| Liquid Gauging | |||||||||||||
| Pickling | |||||||||||||
| Shake Table | |||||||||||||
| Coagulating | |||||||||||||
| Emulsifying | |||||||||||||
| Medical | |||||||||||||
| Remote Control | |||||||||||||
| Precipitators | |||||||||||||
| Plastic Welding | |||||||||||||
| Therapy | |||||||||||||
| Machining | |||||||||||||
| Soldering | |||||||||||||
| Infra- sonic |
Sonic | Ultrasonic | |||||||||||