Methods and systems for magnetic shielded transmitter system
View Patent ↗In one aspect, a quadratic ferrite cube, wherein the quadratic ferrite cube comprises a hollow interior portion, wherein quadratic ferrite cube comprises a geometric shape that exhibits a same magnetic performance in an X direction, a Y direction, and a Z direction; a plurality of copper windings placed on an external portion of the quadratic ferrite cube; and a control and driving circuitry located inside the hollow interior portion, wherein the quadratic ferrite cube is used to generate a X, Y, Z magnetic field, and wherein the quadratic ferrite cube is used as a shielded room for a control and driving circuitry by generating the X, Y Z magnetic field in a range 20 KHz to 50 KHz for a magnetic based position system.
1 . A magnetic shielded transmitter system, comprising:
a quadratic ferrite cube, wherein the quadratic ferrite cube comprises a hollow interior portion, wherein quadratic ferrite cube comprises a geometric shape that exhibits a same magnetic performance in an X direction, a Y direction, and a Z direction;
a plurality of copper windings placed on an external portion of the quadratic ferrite cube; and
a control and driving circuitry located inside the hollow interior portion,
wherein the quadratic ferrite cube is used to generate a X, Y, Z magnetic field,
wherein the quadratic ferrite cube is used as a shielded room for a control and driving circuitry by generating the X, Y Z magnetic field in a range 20 KHz to 50 KHz for a magnetic based position system, and
wherein a tile comprises a dimension measurement of 100 m*100 m*5.8 m[m3],and wherein each tile is measured to find μrel=600.
2 . The magnetic shielded transmitter system of claim 1 , wherein the plurality of copper windings are wound around the external surface of the quadratic ferrite cube.
3 . The magnetic shielded transmitter system of claim 2 further comprising:
an internal conductive chassis within the quadratic ferrite cube.
4 . The magnetic shielded transmitter system of claim 3 , wherein the hollow portion comprises a reduced magnetic field strength for safe placement of the control and driving circuitry.
5 . The magnetic shielded transmitter system of claim 4 , wherein the reduced magnetic field is configured for placement of a conductive shield with the hollow interior portion.
6 . The magnetic shielded transmitter system of claim 4 , wherein the conductive shield is used for fixing any ferrite elements and for fixing the control and driving circuitry.
7 . The magnetic shielded transmitter system of claim 5 ,
wherein a placement of a conductive chassis inside the quadratic ferrite cube reduce a residual magnetic field, and
wherein the quadratic ferrite cube is configured for a main part of the magnetic flux flow occurs in the ferrite.
8 . The magnetic shielded transmitter system of claim 7 , wherein the quadratic ferrite cube comprises six ( 6 ) tiles of the same size on each side, and wherein the. For example, the ferrite tiles can be fastened to a wood side of the quadratic ferrite cube by a glue adhesive.
9 . The magnetic shielded transmitter system of claim 8 , wherein the six tiles can be used to dampen high frequency waves in a radio anechoic chamber.
10 . The magnetic shielded transmitter system of claim 9 , wherein ferrite thickness is 3 mm.
11 . The magnetic shielded transmitter system of claim 10 , wherein structure is wound with twenty-three (23) windings d=1.4 m[m] stiff copper wire.
12 . The magnetic shielded transmitter system of claim 11 , wherein an inductance is measured to be L=220 μ[H].
13 . The magnetic shielded transmitter system of claim 12 , wherein a 200 n[F], high Q capacitor is connected in series to form a resonance.
14 . The magnetic shielded transmitter system of claim 13 , wherein power generator coupled with the stiff copper wire is adjusted such that the voltage across the 23 windings is 152 [V].
15 . The magnetic shielded transmitter system of claim 14 , wherein from this, the voltage across one winding of the stiff copper wire determined as 6.6 [V] corresponding to
d
Φ
dt
=
6.6
[
V
]
.
16 . The magnetic shielded transmitter system of claim 15 , wherein a placement of a conductive chassis is open for conducting a heat transfer from the driving electronics to the surface via the ferrite.
17 . The magnetic shielded transmitter system of claim 16 , wherein magnetic shielded transmitter system a solution with only one box instead of two boxes.
18 . The magnetic shielded transmitter system of claim 1 , wherein a ferrite thickness is 5.8 mm.