Claims
- 1. A magnetic switch for recording the change in position of a magnetic field, comprising:
- a first object on which is positioned a source of magnetic force for creating a magnetic field;
- a second object on which is positioned at least one type II superconducting medium which exhibits a permanent magnetic component after exposure to a magnetic field,
- such that relative motion between the first object and the second object causes the magnetic field to induce a residual magnetization in the superconducting medium; and
- means for measuring the residual magnetization induced in the superconducting medium.
- 2. The magnetic switch of claim 1, wherein the type II superconducting medium further comprises a planar type II superconducting medium.
- 3. The magnetic switch of claim 2, wherein the source of magnetic force further comprises a source of magnetic force for creating a magnetic field in a direction orthogonal to the surface of the superconducting medium.
- 4. The magnetic switch of claim 2, wherein the source of magnetic force further comprises a source of magnetic force for creating a magnetic field in a direction parallel to the surface of the superconducting medium.
- 5. A device for sensing the direction of a magnetic field, comprising:
- a first type II superconducting medium adapted to exhibit a permanent magnetic component after exposure to a magnetic field having a first direction;
- a second type II superconducting medium adapted to exhibit a permanent magnetic component after exposure to a magnetic field having a second direction orthogonal to the first direction;
- a third type II superconducting medium adapted to exhibit a permanent magnetic component after exposure to a magnetic field having a third direction orthogonal to the first and second directions; and
- means for measuring the direction of any permanent magnetic component induced in the first, second, or third superconducting medium.
- 6. The device of claim 5, wherein the first, second, and third media each further comprises a planar type II superconducting medium such that the first medium is perpendicular to the second medium and the third medium is perpendicular to the first and second media.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of application Ser. No. 303,708, filed Jan. 27, 1989.
US Referenced Citations (4)
Foreign Referenced Citations (1)
Number |
Date |
Country |
247963 |
Oct 1988 |
JPX |
Continuation in Parts (1)
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Number |
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Parent |
303708 |
Jan 1989 |
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