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  • Created by: EllieR15
  • Created on: 19-02-15 15:09

What is ultrasound?

Ultrasound is sound with a higher frequency than we can hear.

Electrical systems can be made which produce electrical oscillations of any frequency. These can easily be converted into mechanical vibrations to produce sound waves of a higher frequency than the upper limit of human hearing (the range of human hearing is 20 to 20,000 Hertz). This is called ultrasound.

Ultrasound waves get partially reflected at a boundary between media

1) When a wave passes from one medium into another, some of the wave is reflected off the boundary between the two media, and some…


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