| 摘要 |
A positioning system for providing a controlled relative movement between two members along at least a first axis including a first cylindrical member, such as a magnetic platen, having an energy configuration formed from ridges of magnetic material to provide a magnetic energy configuration, and with the energy configurations corresponding to the first coordinate axis and with a second member, such as a head disposed for movement relative to the first member along the first coordinate axis and with the second member including electromagnetic means, and with the electromagnetic means selectively energizable for providing forces between the second member and the first member in cooperation with the energy configuration of the first member to provide movement of the second member along the coordinate axis.
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