用MATLAB编写了数据转化程序，完成了变曲率零件从型值点的曲率半径到机床控制坐标的转换。
The data transform program has been compiled with MATLAB, which sequentially finishes transformation of part curvature radius into control coordinate of machine tool.
逆变控制采用SPWM方式，由数字PID调节器实现输出电压瞬时值反馈，并采用有效值调节实现稳压。
SPWM method is adopted to control the inverter model. Digital PID adjuster is used to realize voltage loop and the value modulation is used to maintain the value of output voltage.
开发了变极性TIG焊电源的微机控制系统，通过调节输出电流的正负半波时间、幅值获得不对称方波。
The controlling system of the variable polarity power source for TIG welding by microprocessor-80C552 is developed with flexible setting time and scope of the DCEP and DCEN.
开发了变极性TIG焊电源的微机控制系统，通过调节输出电流的正负半波时间、幅值获得不对称方波。
The controlling system of the variable polarity power source for TIG welding by microprocessor-80C552 is developed with flexible setting time and scope of the DCEP and DCEN.
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