Fractal dimension and scale coefficient of surface profiles are calculated using structure function method.
函数 法计算磨损表面轮廓的分形维数和尺度系数。
Dimensional theory is applied to analyze the different values of the scale coefficient in physical formulas, and the analytic methods are also offered.
从量纲理论来讨论物理公式中的比例系数取值不同的原因，并给出具体的分析方法。
Given a kind of Method of the fast PID control with changed scale coefficient for solving the problem of long calculated time with MCU in real-time control system.
针对单片机实时控制系统中pid控制运算时间过长的问题，提出了一种变比例系数快速PID调节法。
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