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研究了脉冲电镀在微氰镀金，无氰镀金体系中脉冲频率、脉冲占空比对镀金层耐磨性的影响。
The effect of pulse frequency and pulse duration ratio on the abrasion resistance of gold coatings is investigated with pulse plating in cyanide free and trace cyanide baths.
在自行设计的动态误差实验系统中，同步采集标准信号（电机脉冲数）和测量信号（光栅脉冲数），实时比对分离出动态误差。
In a self-designed dynamic error experimental system, the standard signal (motor pulses) and the measured signal (grating pulses) were collected synchronously, and isolated the dynamic error.
结果表明，温度、平均电流密度、频率、逆向脉冲系数及占空比对镀层性能和微观形貌有较大影响。
The results showed that the temperature, average current density, frequency, reverse pulse coefficient and duty cycle had great impact on the microstructure of coatings.
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