基于PWM的新型理疗仪设计  

Design of new physiotherapy instrument based on PWM

作　　者：陈海军[1] 温志浩[1] 

机构地区：[1]广东食品药品职业学院医疗器械系,广州510520

出　　处：《现代仪器与医疗》2013年第4期12-14,共3页Modern Instruments & Medical Treatment

摘　　要：利用STM32作为主控芯片,设计1种新型中频电脉冲理疗仪,通过微秒级定时器设置实现高精度脉宽调制(PWM)功能,经过信号调理、功率放大以及输出控制得到所需要的治疗波形。实验结果表明,理疗仪工作稳定可靠,理疗强度可调幅度大,输出波形光滑、无毛刺、病人使用过程中无明显刺痛感。TM32 as the main chip,we design a novel electrical pulse physiotherapy instrument which realize pulse width modulation（PWM） by timer setting,then get the needed treatment waveform after signal conditioning,power amplifier,and output control.The experimental results show that,physiotherapy instrument is stable and reliable,physical strength large adjustable range,which can be suitable for the vast majority of the crowd;and the output waveform is smooth,without burr,there were no obvious pain,obvious physical therapy effect.

关 键 词：嵌入式 中频 理疗仪 PWM 

分 类 号：R318.6[医药卫生—生物医学工程]