Magnetic structure production
Magnetic structure production may relate, by way of example but not limitation, to methods, systems, etc. for producing magnetic structures by printing magnetic pixels (aka maxels) into a magnetizable material. Disclosed herein is production of magnetic structures having, for example: maxels of varying shapes, maxels with different positioning, individual maxels with different properties, maxel patterns having different magnetic field characteristics, combinations thereof, and so forth. In certain example implementations disclosed herein, a second maxel may be printed such that it partially overwrites a first maxel to produce a magnetic structure having overlapping maxels. In certain example implementations disclosed herein, a magnetic printer may include a print head comprising multiple parts and having various properties. In certain example implementations disclosed herein, various techniques for using a magnetic printer may be employed to produce different magnetic structures. Furthermore, description of additional magnet-related technology and example implementations thereof is included herein.
1. An apparatus for printing maxels into a magnetizable material, the apparatus comprising:
a magnetic print head comprising a flat metal conductor having a plurality of layers forming an inductor coil and a hole extending through the plurality of layers, said magnetic print head configured to generate a magnetizing field having a high magnetic flux density in and near said hole and a low magnetic flux density elsewhere when a current is applied to said magnetic print head;
a first circuitry that causes at least one of a magnetizable material and the magnetic print head to move to position said hole of said magnetic print head adjacent to a first location at a surface of said magnetizable material where a maxel is to be printed; and
a second circuitry that interacts with said magnetic print head to print a first maxel at the first location at the surface of said magnetizable material, the first printed maxel being associated with a first polarity and a second polarity, wherein the first polarity associated with the first printed maxel is substantially exposed at the surface of said magnetizable material but the second polarity associated with the first printed maxel is not substantially exposed at the surface of said magnetizable material.
2. The apparatus of claim 1 , wherein the magnetic print head further comprises a magnetic material that at least partially fills said hole.
3. The apparatus of claim 1 , wherein the magnetic print head comprises a plurality of metal layers.
4. The apparatus of claim 1 , further comprising:
a sacrificial material sufficiently close to said magnetizable material to absorb at least a portion of the magnetizing field used to produce the first printed maxel.
5. The apparatus of claim 1 , further comprising:
a sacrificial material sufficiently close to said magnetizable material to affect at least a portion of the magnetizing field used to produce the first printed maxel.
6. The apparatus of claim 5 , wherein the sacrificial material includes one or more printed maxels.
7. The apparatus of claim 1 , further comprising:
a control system configured to control said first circuitry and said second circuitry.
8. The apparatus of claim 7 , wherein said control system is further configured to establish a coordinate system for said magnetizable material.
9. The apparatus of claim 1 , wherein said magnetic print head is configured to magnetize in a direction that is perpendicular to the surface of said magnetizable material.
10. The apparatus of claim 1 , wherein said magnetic print head is configured to magnetize in a direction that is not perpendicular to the surface of said magnetizable material.
11. The apparatus of claim 1 , further comprising:
a sensor configured to measure a magnetic field characteristic.
12. The apparatus of claim 11 , wherein said sensor is a field sensor.
13. The apparatus of claim 1 , further comprising:
a computer.
14. The apparatus of claim 13 , further comprising:
software for designing a magnetic pattern.
15. The apparatus of claim 14 , wherein said software is further configured to define coordinates of said first location on the surface of said magnetizable material.
16. The apparatus of claim 14 , wherein said software is further configured to define the first polarity and the second polarity of said first maxel.
17. The apparatus of claim 14 , wherein said software is further configured to define an amount of current applied to said magnetic print head.
18. The apparatus of claim 14 , wherein said software is further configured to define at least one of a size or a shape of said first maxel.
19. The apparatus of claim 13 , further comprising:
software for controlling the printing of a plurality of maxels into said magnetizable material to produce a magnetic pattern.
20. The apparatus of claim 19 , wherein said software is further configured to define locations, polarities, and field amplitudes of said plurality of maxels.