Magnetic support system
AssigneeTechnische Universiteit Delft
InventorsGerard Johannes Pieter Nijsse, Josephus Wilhelmus Spronck
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Abstract
There is described a support system enabling supporting an object such as a platform (1) free from vibration, in that bearing elements (50) have a stiffness (k) which at a working point (z0) equals zero. A bearing element (50) comprises two magnectic couplings (51, 52) provided by permanent magnets (61, 63). One coupling (51) has a positive stiffness (k51), and the other coupling has a negative stiffness (k52); in the working point, the absolute values of those stiffnesses are equally great. Alternatively, electrostatic couplings are used.
Claims11
A support system for supporting, substantially free from vibration, an object relative to a fixed world, comprising means for exerting a magnetic or electromagnetic or electrostatic pulling force (F1) on the object, and means for exerting a magnetic or electromagnetic or electrostatic pressure force (F2) on the object, wherein the two forces (F1, F2) have stiffnesses (k51, k52), respectively, of mutually opposite signs, such that in a working point (z0), the total force (FTOT=F1+F2) has a total stiffness (kTOT) which is substantially equal to zero.
Dependencies are inferred from the claim text.