Control Design of Pneumatic Ballistic Shockwave Therapy Handle
To address the issues of low control precision,short lifespan,and poor reliability in the pneumatic handpiece of the pressure ballistic shockwave therapy device,a control strategy based on PWM(Pulse Width Modulation)signal is proposed.The design solution incorporates the STM32F103 microcontroller,H-bridge driver circuit,and proportional solenoid valve.A theoretical model of the dynamic characteristics of the proportional solenoid valve is established,and the feasibility of the proposed solution is analyzed through simulation testing.The device exhibits faster response,reduces coil heating,decreases power consumption of the solenoid valve,and extends its lifespan.When applied to the pressure ballistic shock wave therapy device,it improves the stability of the handle operation and enhances the therapeutic effect.
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