| 摘要 |
The ultra-sound system has a processing tool (2.1) and a piezo-electric or magneto-strictive motor (2.2) that activates a resonance frequency that enables variable performance of the ultrasound system. The motor has at least one further resonance frequency (R1-R6) and other arrangements of the ultrasound system. Excitation of the ultrasound system may be achieved with a frequency mix which consists of a base frequency that corresponds to a resonance frequency of the ultrasound system. |
