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In-vacuum linear motor applications are often limited by the thermal (cooling) capacity. This makes optimization of the thermal resistance even more critical than in “atmospheric” applications. With the help of a FEM model, a prototype is discussed with a 50% reduction in thermal resistance.
In Iron Core Motors, there are two types of ripple – i.e. position dependent, current dependent parasitic forces. One is only marginally dependent on current (the detent force) and the other is linear with current. A technique is presented which accomplishes this, both in simulation and in measurement. The potential benefit for a parametrized Feed Forward system is illustrated.
Three ways to protect your linear motors from overheating
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Tecnotion introduces a new series of smaller QTR torque motors at the SPS IPC Drives 2017. A new 65 mm… Read more
How does a linear motor move over a curved track? A seemingly complicated question with straight forward… Read more