Method And System For Limiting Interference In Magnetometer Fields
First Claim
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1. A device for use in generating a magnetic field, comprising:
- a first transmission magnetometer configured to transmit an external magnetic field; and
a generator configured to vary a characteristic of the external magnetic field, wherein the characteristic is varied over time.
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Abstract
Magnetometer systems, and associated methods, are provided including a first magnetometer adapted to generate an external magnetic field having a characteristic that is varied over time, and a second magnetometer adapted to receive the magnetic field and generate at least one magnetometer signal representing a change in the magnetic field. In one embodiment, the magnetic field characteristic includes the frequency of the generated magnetic field. In another embodiment, the magnetic field characteristic includes the frequency period of the magnetic field.
75 Citations
35 Claims
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1. A device for use in generating a magnetic field, comprising:
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a first transmission magnetometer configured to transmit an external magnetic field; and a generator configured to vary a characteristic of the external magnetic field, wherein the characteristic is varied over time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A magnetometer system, comprising:
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a first magnetometer configured to generate an external magnetic field, the magnetic field having a characteristic that is varied over time; and a second magnetometer configured to receive and monitor the magnetic field, the second magnetometer being further configured to generate at least one magnetometer signal representing a change in the magnetic field. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. A method for limiting the effects of magnetic field interference on signals representing measured changes of a magnetic field, the method comprising:
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obtaining a magnetometer system having first and second magnetometers; generating an external magnetic field with the first magnetometer; receiving and monitoring the magnetic field with the second magnetometer; generating a magnetometer signal with the second magnetometer, wherein said signal represents a change in the magnetic field; and varying a characteristic of the magnetic field over time. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35)
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Specification