Sawyer motor

A Sawyer motor or planar motor is a type of linear electric motor with a forcer capable of moving in two dimensions, riding on a stator which is a large flat—or nearly flat—plate.[1] Sawyer motors have been used in positioning stages and pen plotters.

This class of motors is named for Bruce Sawyer, who invented it in 1968.[2][3]

The US-patent was submitted 1966 and granted 1968.[4]

References

  1. ↑ "ME EN 7960 – Precision Machine Design – Alternative Linear Motion Systems" (PDF). p. 13. Retrieved 2012-04-13.
  2. ↑ Tom Lauwers; Zack Edmondson & Ralph Hollis (2005). "Free-Roaming Planar Motors". Microdynamic Systems Laboratory, Carnegie Mellon University. Retrieved 2012-04-13.
  3. ↑ W. E. Hinds and B. Nocito. Theory and Application of Step Motors, chapter 15: The Sawyer Linear Motor, pp. 327–340. St. Paul, West Publishing Co., 1974
  4. ↑ http://www.google.com/patents/US3376578

See also


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