基于DSP的磁振热系统的研究与实现

Research and implementation of magnetic fields-vibration-heating system based on DSP

低频脉冲磁场、振动、发热三种物理因子对生物体具有积极作用,因而磁振热系统受到广泛关注。利用数字信号处理器DSP作为系统控制核心,产生频率、占空比、幅度均可调节的脉冲波,经电流驱动电路驱动输出头,产生脉冲磁场、振动和发热。系统产生的三种物理因子的参数均可调节,并可以组合使用。实验测试结果表明,该系统操作方便,性能稳定,参数达到预期要求,为进一步临床应用奠定基础。

More and more attentions focus on the pulsed magnetic fields- vibration- heating system, because of its positive effects on the organism. This paper proposes a system using DSP as main controller, which generates low frequency pulse wave. All of the frequency, duty ratio and amplitude can adjust. The pulse wave is used to drive the treatment component through current driving circuit, generating pulsed magnetic fields, vibration and heating. The parameters of three physical factors can be activated according as expected combination. Experiment results show that this system has the advantages of convenient operation and stable perfor-mance, the parameters achieve the desired effect, and it lays the foundation of further clinical trials.