The main function of an ultrasonic booster is to augment the amplitude of ultrasonic vibrations when placed between the converter and the sonotrode, forming the vibrating assembly.
The ultrasonic
booster is a one half-wavelength long resonant section made of aluminum or
titanium. It is mounted between the Ultrasonic converter and the Ultrasonic
horn, and modifies the amplitude of vibration applied to the Ultrasonic horn.