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提出了一种用于超声治疗的多频相控驱动系统。由于驱动系统的宽带特性,该系统能同时驱动谐振于不同工作频率的多元超声换能器或工作于同一谐振频率的多元超声换能器和相控阵超声换能器,并能对每一通道的功率、工作频率、相位分别控制。实验结果表明,系统具有优良的稳定性。选用合适的治疗超声换能器后,该系统既可为温热等辅助疗法提供驱动,也可作为高强度聚焦超声治疗的驱动系统。
A multi-frequency phase-controlled drive system for ultrasonic therapy was proposed. Due to the broadband nature of the drive system, the system can simultaneously drive multiple ultrasound transducers resonant at different operating frequencies or multiple ultrasound transducers and phased array ultrasound transducers operating at the same resonant frequency, The power, frequency, phase control. Experimental results show that the system has excellent stability. The selection of a suitable ultrasonic transducer for treatment, the system can not only provide support for warm and other ancillary therapy, but also as a high intensity focused ultrasound treatment of the drive system.