Ultrasound and its uses

Ultrasound

- Humans hearing range is from between 20-20,000 Hz

- Any sound wave with a frequency higher than this is classified as ultrasound

- You can use oscillope traces to show an ultrasound pulse reflecting off two separate boundaries

S = v X t    (distance (m) = speed (m/s) x time (s) )

Uses:

Medical: - Pre-natal scanning - echo refractions to determine the shape

                                               - gel used to reduce the…