Magnetic device
A magnetic device includes at least one stator and at least one translator. The translator is moveable in relation to the stator in a translator moving direction. The translator moves in a direction oriented towards the stator. The at least one stator and the translator are arranged along an axis. The magnetic device includes a control device, the control device includes a device for controlling a distance r≧0 (r being equal to or greater than 0) between the translator and the stator in relation to the force generated between the stator and the translator when the magnetic device is in operation. The translator is movable in relation to the stator in the translator moving direction along a linear translator movement axis. The at least one stator and the translator are oriented along the translator moving axis.
1. A magnetic device comprising at least one stator and at least one translator, said translator being movable in relation to said stator in a translator moving direction, said translator moving direction being oriented towards said stator, said at least one stator and said translator being arranged along an axis, wherein said magnetic device comprises a control device, said control device comprising a device for controlling a distance r>0 between the translator and the stator in relation to the force generated between the stator and the translator when said magnetic device is in operation, r being equal to or greater than 0, said translator being movable in relation to said stator in the translator moving direction along a linear translator movement axis, said at least one stator and said translator being oriented along said translator moving axis, wherein the minimum distance r is defined by a controlling unit based on the force created between the stator and the translator, so that a force acting on the translator at a Position X t of the translator is a maximum force, the force acting on the translator being defined by the following relation:
F
translator
(
X
t
)
=
μ
0
4
π
{
{
q
s
1
a
(
X
t
)
q
tb
(
X
t
)
(
X
t
+
L
s
+
L
t
2
)
2
+
q
s
1
a
(
X
t
)
q
tb
(
X
t
)
(
X
t
-
L
s
+
L
t
2
)
2
}
-
{
+
q
s
1
a
(
X
t
)
q
tb
(
X
t
)
(
X
t
+
L
t
-
L
s
2
)
2
+
q
s
1
a
(
X
t
)
q
sb
(
X
t
)
(
X
t
+
L
t
-
L
s
2
)
2
}
}
wherein
q s1a (X t ) and q s1b (X t ) are the magnetic pole strengths of the stators,
q ta (X t ) and q tb (X t ) are the magnetic pole strengths of the translator,
X
t
∈
]
L
s
+
L
t
2
;
δ
+
L
s
+
L
t
2
[
is the translator's position X t ,
L s is the length of the stators,
L t is the length of the translator.
2. The magnetic device according to claim 1 , wherein individual stator magnets at the stator and/or individual translator magnets at the translator are arranged along a line describing a polygon around a polygon axis which is oriented in parallel to the translator's moving direction.
3. The magnetic device according to claim 1 , wherein the translator is mounted movably in relation to the stator by means of at least one guiding unit, a guiding axle of the guiding unit intersecting the stator, in an area between two adjacent individual stator magnets, and the translator, in an area between two adjacent individual translator magnets.
4. The magnetic device according to claim 1 , wherein the translator's movement in relation to the stator is an oscillating movement.
5. The magnetic device according to claim 1 , wherein the stator is a permanent magnet, while the translator is an electromagnet.
6. The magnetic device according claim 1 , wherein the stator is an electromagnet, while the translator is a permanent magnet.
7. The magnetic device according to claim 1 , wherein the stator and the translator are permanent magnets or electromagnets.
8. The magnetic device according to claim 1 , wherein the control device comprises a spacer element which may be positioned between the stator and the translator.
9. The magnetic device according to claim 1 , wherein the control device comprises a system exercising a mechanical constraint on the translator's movement.
10. The magnetic device according to claim 1 , wherein the control device comprises a distance measuring device and/or time measuring device, by means of which the polarization of the stator and/or the translator and/or the field strength of the stator and/or the translator may be changed depending on the position of the translator in relation to the stator and/or depending on a period of time.
11. The magnetic device according to claim 1 , wherein a volume extending between the stator and the translator, when the translator is situated at the furthest distance d from the stator, is a vacuum.