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[第2讲]步进电机的工作原理1-步进控制系统的应用: [第2讲]步进电机的工作原理1-步进控制系统的应用。步进电机的工作原理实际上是电磁铁的作用原理。当某相定子励磁后，它吸引转子，转子的齿与该定子磁极上的齿对齐，转子转动一个角度，换一相得电时，转子又转动一个角度。如此每相不停地轮流通电，转子不停地转动。学习更多内容

2009/11/24
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试听[第1讲]步进电机的结构-步进控制系统的应用: [第1讲]步进电机的结构-步进控制系统的应用。本讲主要介绍了步进控制系统的组成：控制器、步进驱动器、步进电机和驱动台，步进电机的种类、步进电机的结构等内容。学习更多内容

2009/11/24
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自动风筝Sky_liner: 放飞风筝需要娴熟的技能，Festo公司凭借其“空中自动化风筝”首次证实运用机电学原理可以实现风筝全程自动化控制。这是其在运用流动气流核心技术上的新发展。 “空中自动风筝”包含两个分别用机电控制器操纵的双线风筝。运用伺服电机和人造风，这两个风筝就可以实现室内自动化操作。各风筝线通过快速开关阀连接到Festo公司生产的DMSP射流臂，它可以缩短风筝线的长度。如果风筝断线，通过射流臂收缩风筝线就可以使其平稳飞行。It takes a fair amount of skill to fly a kite. With its Sky_liner project, Festo has become the first company to demonstrate that fully automated control can be achieved with the aid of mechatronics, thus linking a new development to its core competency of automation using moving air. Sky_liner consists of two two-line kites, each of which is controlled using a mechatronic control unit. The two kites are operated automatically indoors, using servo motors and artificial wind. Each line is connected via fast-switching valves to a fluidic muscle DMSP from Festo, which shortens the line and counterbalances the kite by contracting when the kite breaks away. It takes a fair amount of skill to fly a kite. With its Sky_liner project, Festo has become the first company to demonstrate that fully automated control can be achieved with the aid of mechatronics, thus linking a new development to its core competency of automation using moving air. Sky_liner consists of two two-line kites, each of which is controlled using a mechatronic control unit. The two kites are operated automatically indoors, using servo motors and artificial wind. Each line is connected via fast-switching valves to a fluidic muscle DMSP from Festo, which shortens the line and counterbalances the kite by contracting when the kite breaks away.