Overview
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Linear motors have been widely used for carrier devices and machine tools
due to their capability of high-speed performance, high acceleration and
deceleration, and accurate positioning.
To estimate the response time and the thrust force variation during the
positioning control, it is important to take into account the characteristics
of both a control circuit and a linear motor in the analysis.
This note presents the use of the JMAG-RT system and the circuit/control
simulator to obtain the response time and the thrust force variation of
a permanent magnet linear motor. |
Response Time/Thrust Force Variation
Figure 1 shows the position of moving part versus time. Figure 2 shows
the thrust force versus time.
In Figure 1, the time needed for the moving part to reach the reference
value can be viewed.
Since the RT motor model is created by taking into account the model geometry,
thrust force variation by the position of the moving part and slots can
be obtained. |
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