[Lindsay] starts off by showing how to find out the resonant frequency of the transducer, designing and building a high voltage high frequency AC power supply, and how to design a horn. Not ...

Ultrasound is produced by high frequency vibrations beyond the range of human hearing. The frequency of ultrasound is therefore greater than 20,000 hertz. Ultrasound, like audible sounds ...

This non-invasive technique uses high-frequency sound waves ... Transabdominal Ultrasound: This is the most common type, ...