电火花线切割机恒张力控制系统的研究 关键词：电火花线切割加工；张力控制；磁粉制动器；闭环控制 [gap=918]Key words：WEDM；tension control；magnetic powder brake；closed lcop control
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The belt transmission is driven by DC motor, and loaded by magnetic powder brake in the experiment system, where an economic method was used to measure rotating speed and torque.
带传动由直流电机驱动,利用磁粉制动器进行加载。
参考来源 - 基于虚拟仪器的带传动性能参数实验系统的研究The content voltage circuit and circuit to drive magnetic powder brake are designed and debugged, a real-time control software based on VB6.0 has been written, the wire-feeding system is controlled automatically have realized.
设计并调试了控制系统的稳压电路、磁粉制动器的驱动电路，同时基于VB6.0编写了实时控制程序，实现了走丝系统的自动化控制。
参考来源 - 慢走丝线切割机床走丝系统的研究与开发·2,447,543篇论文数据，部分数据来源于NoteExpress
Unwinding and traction adopts magnetic powder brake to make material moving more stable.
放卷牵引采用磁粉制动器使走料更平稳。
Unwinding adopts magnetic powder brake, roll diameter calculated automatically by the PLC automatic tension control.
放卷采用磁粉制动器，由PLC自动计算卷径实现自动涨力控制。
Utilizing the linearity peculiarity of the exciting current of magnetic powder brake and brake moment, the closed loop control system is designed.
利用磁粉制动器的励磁电流与制动力矩成线性关系这一特性，设计了闭环张力控制系统。
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