System and method for producing repeating spatial forces

• US 7,808,349 B2
• Filed: 05/08/2009
• Issued: 10/05/2010
• Est. Priority Date: 04/04/2008
• Status: Expired due to Fees

• Current Assignee: Correlated Magnetics Research, LLC
• Original Assignee: Cedar Ridge Research LLC
• Inventors: Fullerton, Larry W., Roberts, Mark D.
• Primary Examiner(s): Barrera, Ramon M
• Application Number:
  US12/463,104
• Publication Number:
  US 20090251264A1
• Time in Patent Office: 515 Days
• Field of Search: 335/285, 335302-306, 243/03, 310/90.5
• US Class Current: 335/306
• CPC Class Codes: H01F 41/02 for manufacturing cores, coils, or magnets H01F41/14 takes precedence; for dynamo-electric machines H02K15/00
• CPC Class Codes: H01F 7/0278 for generating uniform fields, focusing, deflecting electrically charged particles for magnetic separation by Lorentz force B03C1/023; specially adapted for NMR applications G01R33/383
• CPC Class Codes: H01F 7/0284 using a trimmable or adjustable magnetic circuit, e.g. for a symmetric dipole or quadrupole magnetic field
• CPC Class Codes: H01L 27/0266 using field effect transistors as protective elements
• CPC Class Codes: H01P 11/00 Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
• CPC Class Codes: Y10T 24/32 having magnetic fastener
• CPC Class Codes: Y10T 29/49016 Antenna or wave energy "plumbing" making
• CPC Class Codes: Y10T 29/4902 Electromagnet, transformer or inductor
• CPC Class Codes: Y10T 29/49073 by assembling coil and core
• CPC Class Codes: Y10T 29/49075 including permanent magnet or core
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 29/49904 Assembling a subassembly, then assembling with a second subassembly
• CPC Class Codes: Y10T 29/53091 for work-holder for assembly or disassembly
• CPC Class Codes: Y10T 29/5313 Means to assemble electrical device
• CPC Class Codes: Y10T 29/53265 with work-holder for assembly

Abstract

An improved field emission system and method is provided that involves field emission structures having electric or magnetic field sources. The magnitudes, polarities, and positions of the magnetic or electric field sources are configured to have desirable correlation properties, which may be in accordance with a code. The correlation properties correspond to a desired spatial force function where spatial forces between field emission structures correspond to relative alignment, separation distance, and the spatial force function.

Claims

1. A method for producing spatial forces, said method comprising the steps of:

defining a first field emission structure, said first field emission structure including a first plurality of field emission sources having positions, polarities, and field strengths in accordance with a desired spatial force function;

defining at least one second field emission structure, said at least one second field emission structure including a second plurality of field emission sources having positions, polarities, and field strengths in accordance with said desired spatial force function;

associating said first field emission structure with a first object;

associating at least one of said second field emission structures with a second object; and

moving at least one of said first object or said second object such that said first magnetic field structure successively engages with each of said at least one of said second field emission structures to produce repeating spatial forces, said spatial force function being in accordance with a first code and a second code, said first code corresponding to a code modulo of said first plurality of field sources and said second code corresponding to a code modulo of said second plurality of field emission sources, said first code and said second code defining a peak spatial force corresponding to substantial alignment of said code modulo of said first plurality of field emission sources with said code modulo of said second plurality of field emission sources, said first code and said second code also defining a plurality of off peak spatial forces corresponding to a plurality of different misalignments of said code modulo of said first plurality of field emission sources and said code modulo of said second plurality of field emission sources, said plurality of off peak spatial forces having a largest off peak spatial force, said largest off peak spatial force being less than half of said peak spatial force.

2. The method of claim 1, wherein said first code is complementary to said second code and said desired spatial force function has a peak attractive force.

3. The method of claim 1, wherein said first code is anti-complementary to said second code and said desired spatial force function has a peak repelling force.

4. The method of claim 1, wherein said at least one second field emission structure corresponds to a repeating code modulo of said second code.

5. The method of claim 1, wherein said at least one second field emission structure corresponds to a repeating code modulo of said second code used to define said at least one of said second field emission structures.

6. The method of claim 1, wherein said second code used to define said at least one second field emission structure is one of a one-dimensional code, a two-dimensional code, a three-dimensional code, or a four-dimensional code.

7. The method of claim 6, wherein said second code comprises at least one of a Barker code, a Gold code, a Kasami sequence, a hyperbolic congruential code, a quadratic congruential code, a linear congruential code, a Welch-Costas array code, a Golomb-Costas array code, a pseudorandom code, a chaotic code, an Optimal Golomb Ruler code, a deterministic code, or a designed code.

8. The method of claim 6, wherein said at least one second field emission structure corresponds to a single code modulo of said second code and said at least one second magnetic field structure comprises a plurality of second magnetic field structures.

9. The method of claim 6, wherein said at least one second field emission structure comprises a plurality of code modulos of said second code.

10. The method of claim 6, wherein said at least one second field emission structure comprises a plurality of code modulos of a said second code corresponding to said desired spatial force function.

11. The method of claim 6, wherein each of the second code modulo of said plurality of code modulos to the last code modulo of said plurality of code modulos succeeds a previous code modulo of said plurality of code modulos and a first code modulo of said plurality of code modulos success said last code modulo of said plurality of code modulos.

12. The method of claim 1, wherein at least one of said first field emission structure and said at least one second field emission structure comprises one of a permanent magnet, an electromagnet, an electret, a magnetized ferromagnetic material, a portion of a magnetized ferromagnetic material, a magnetized antiferromagnetic material, a portion of a magnetized antiferromagnetic material, a soft magnetic material, or a superconductive magnetic material.

13. The method of claim 1, wherein at least one of said first object or said second object comprises one of a disc, a wheel, a cylinder, a sphere, a conveyor belt, or a tracked structure.

14. A system for producing spatial forces, comprising:

a first field emission structure including a first plurality of field emission sources having positions, polarities, and field strengths in accordance with a desired spatial force function;

at least one second field emission structure, each second field emission structure of said at least one second field emission structure including a second plurality of field emission sources having positions, polarities, and field strengths in accordance with said desired spatial force function;

a first object associated with said first field emission structure; and

a second object associated with said at least one second field emission structures, said second object being moved such that said first magnetic field structure successively engages with each of said at least one second field emission structures to produce repeating spatial forces, said spatial force function being in accordance with a first code and a second code, said first code corresponding to a code modulo of said first plurality of field sources and said second code corresponding to a code modulo of said second plurality of field emission sources, said first code and said second code defining a peak spatial force corresponding to substantial alignment of said code modulo of said first plurality of field emission sources with said code modulo of said second plurality of field emission sources, said first code and said second code also defining a plurality of off peak spatial forces corresponding to a plurality of different misalignments of said code modulo of said first plurality of field emission sources and said code modulo of said second plurality of field emission sources, said plurality of off peak spatial forces having a largest off peak spatial force, said largest off peak spatial force being less than half of said peak spatial force.

15. The method of claim 14, wherein said first code is complementary to said second code and said desired spatial force function has a peak attractive force.

16. The method of claim 14, wherein said first code is anti-complementary to said second code and said desired spatial force function has a peak repelling force.

17. The method of claim 14, wherein said at least one second field emission structure corresponds to a repeating code modulo of said second code.

18. The method of claim 14, wherein said at least one second field emission structure corresponds to a repeating code modulo of a code used to define said at least one second field emission structure.

19. The method of claim 14, wherein a said second code used to define said at least one second field emission structure is one of a one-dimensional code, a two-dimensional code, a three-dimensional code, or a four-dimensional code.

20. The method of claim 19, wherein said second code comprises at least one of a Barker code, a Gold code, a Kasami sequence, a hyperbolic congruential code, a quadratic congruential code, a linear congruential code, a Welch-Costas array code, a Golomb-Costas array code, a pseudorandom code, a chaotic code, an Optimal Golomb Ruler code, a deterministic code, or a designed code.

21. The method of claim 19, wherein said at least one second field emission structure corresponds to a single code modulo of said second code and said at least one of said second magnetic field structures comprises a plurality of said second magnetic field structures.

22. The method of claim 19, wherein said at least one second field emission structure comprises a plurality of code modulos of said second code.

23. The method of claim 19, wherein said at least one second field emission structure comprises a plurality of code modulos of a said second code corresponding to said desired spatial force function.

24. The method of claim 19, wherein each of a second code modulo of said plurality of code modulos to a last code modulo of said plurality of code modulos succeeds a previous code modulo of said plurality of code modulos and a first code modulo of said plurality of code modulos succeeds said last code modulo of said plurality of code modulos.

25. The method of claim 14, wherein at least one of said first field emission structure and said at least one second field emission structure comprises one of a permanent magnet, an electromagnet, an electret, a magnetized ferromagnetic material, a portion of a magnetized ferromagnetic material, a magnetized antiferromagnetic material, a portion of a magnetized antiferromagnetic material, a soft magnetic material, or a superconductive magnetic material.

26. The method of claim 14, wherein at least one of said first object or said second object comprises one of a disc, a wheel, a cylinder, a sphere, a conveyor belt, or a tracked structure.