A METHOD FOR COMPENSATING A HARMONIC COMPONENT OF AN EMITTED ULTRASOUND WAVE.

摘要

Method for compensating an harmonic component (Hn) of an emitted ultrasound wave (es), comprising an ultrasound transducer (10). An excitation signal (e) is generated and comprises a first signal (e1) having a first harmonic component (H1) at a first fundamental frequency (f1) and being applied to the ultrasound transducer (10) for transmitting the emitted ultrasound wave (es). The emitted ultrasound wave (es) comprises the harmonic component (Hn) at a harmonic frequency higher and natural number multiple of the first fundamental frequency. The excitation signal (e) further comprises a second signal (e2) added to the first signal (e1), comprising parameters one of which is tuned so that the harmonic component has a minimal amplitude, the parameters being at least a predetermined frequency, a predetermined amplitude, a predetermined phase with respect to the first signal (e1), and a predetermined bandwidth. The predetermined frequency is different than the harmonic frequency.