大和乡2相步进电机DBO75-2透气塞
运行频率(或连续频率) 是指频率连续上升时,电动机能不失步运行的极限频率.它的值也与负载的大小有关.很显然,在同样负载情况下,连续频率(f.)的值高于响应频率或起动频率的值.步进电机作为伺服电动机或驱动电动机,它的主要技术指标包括:步距,输出转矩,起动0率,运行频率,精度以及效率等.
由于步进电机用在数字程序控制系统内,这种系统的工作速度,取决于电动机的控制频率,用每秒脉冲数(或每秒步数)来衡量,所以步进电机的频率指标常常特别重要.至于主要要求起动频率还是运行频率指标,则要看系统的具体情况而定,有的系统经常带着固定的负载,要求恒定的工作速度,不允许工作速度有变化,例如“作孔机”(纸带穿孔机)就是这样,步进电机应用于这种系统时,主要要求负载情况下起动频率指标,运行频率指标在这里就没有什么意义,相反在另外一些系统内,工作的速度可以并且要求有变化,例如数控机床就是这样,在这种情况下主要就是运行指标了。
最近二十年来,步进电机有很大的发展,各项性能指标有了很大的提高,而其中主要的频率指标的提高,这一方面从改善电动机元件本身的结构、设计和工艺来达到,同时也从驱动器的改进来获得。目前小步距步进电机的启动频率大约可以达到2000~5000步/秒,运行频率可以到达16000步/秒,而在驱动器采用所谓“细分”线路时,运行频率可以达到160000/秒或更高一些。
大和乡2相步进电机DBO75-2透气塞
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大和乡2相步进电机DBO75-2透气塞
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大和乡2相步进电机DBO75-2透气塞
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大和乡2相步进电机DBO75-2透气塞
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