Apparatus for measuring weak static magnetic field using superconduction strips and a SQUID magnetometer
First Claim
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1. An apparatus for measuring a weak static magnetic field, including a superconducting quantum interference device (SQUID) and a pick-up coil magnetically coupled thereto, said apparatus comprising:
- an array of superconducting strips which are arranged in a plane and separated by narrow slits, andmeans for moving said array in a direction parallel to the plane and at a small distance from the pick-up coil.
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Abstract
A magnetic field measurement system including a pick-up coil is not moved but fixed. Strips of superconducting material are arranged in a plane with narrow slits between the strips. The strips are moved very near the pick-up coil along the plane. From output variations of a SQUID magnetometer during the movement, a magnitude of a static field perpendicular to the plane of the strips is obtained.
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Citations
6 Claims
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1. An apparatus for measuring a weak static magnetic field, including a superconducting quantum interference device (SQUID) and a pick-up coil magnetically coupled thereto, said apparatus comprising:
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an array of superconducting strips which are arranged in a plane and separated by narrow slits, and means for moving said array in a direction parallel to the plane and at a small distance from the pick-up coil. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification