Ultrasound-guided high intensity focused ultrasound (HIFU) treatment has been studied to determine accurate positions of the regions to be treated and to monitor its treated volume. However, in most ...

The circuit is designed for atomizing transducers, which have a resonant frequency of 113 KHz — much higher than your average junk box piezo. Check out the demo and build video after the break.

A mode conversion rotary ultrasonic motor (USM) has potential applications in miniature robotics. However, its electrical drive circuit presents some unique challenges, particularly in producing a ...