MAGNECTIC ACTUATOR

摘要

A magnetic actuator 21 has a static part 3 and a dynamic part 5 concentrically arranged therein. The static part 3 comprises two permanent magnets 7A and 7B and the dynamic part 5 comprises two further permanent magnets 9 and 11. The magnet 9 is oppositely oriented to the further magnets 7 A, 7B and 11. The magnets are tuned to each other in such a way that the gravity on the dynamic part is compensated by the magnetic force on the dynamic part. The static part 3 further includes a coil 15 with which an additional magnetic field can be generated by which the actuation force can be adapted.