Procédé à perturbation minimum ou basse consommation pour mesurer les fonctions de réponse de fréquence de dispositifs chirurgicaux ultrasoniques dans la détermination d'un point de fonctionnement optimum
An ultrasonic system is provided that includes an ultrasonic device (900) having an elongated member (100) configured to impart ultrasonic energy to tissue and a resonator (150) configured to impart a frequency to the elongated member. The system also includes an ultrasonic generator (200) configured to supply power to the resonator of the ultrasonic device. The ultrasonic generator has a drive signal generator configured to provide a drive signal, a noise signal generator configure to provide a noise signal, and a controller. The controller receives an output signal from the ultrasonic device and the noise signal from the noise signal generator, calculates a transfer function based on the output signal and the noise signal, and adjusts the drive signal generator based on the calculated transfer function.
