摘要
提出一种通过控制六面顶压机冷却水的冷却功率来提高金刚石合成块温度控制精度的方法,设计了精度达0.5%的三线制热电阻温度采集电路、脉冲型涡轮流量计的信号采集电路和步进电机驱动电路。在STM32平台上,实现了步进电机的加减速控制和高精度脉冲频率的测量。结合带死区的增量式PID控制算法,获得了良好的冷却功率控制效果。
A kind of cubic press cooling power control method was put forward to improve the precision of diamond＇ s temperature. Three-wire RTD temperature acquisition circuit with precision up to 0. 5%, impulse signal sampling circuit of turbine flow meter and stepping motor drive circuit were designed. Stepper motor deceleration motion and high-accuracy survey of pulse frequency were realized on the STM32 platform. By using the incremental dead zone PID algorithm, good control effect of constant power cooling was gained.
出处
《机床与液压》
北大核心
2017年第4期176-179,共4页
Machine Tool & Hydraulics
