Magnetic field shaping components for magnetic field measurement systems and methods for making and using
AssigneeHi LLC
InventorsRicardo Jiménez-Martínez, Jamu Alford, Michael Henninger
Life of this patent
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Abstract
A magnetic field measurement system includes at least one magnetometer; and at least one flux concentrator made of a high magnetic permeability material and configured to receive magnetic field signals from a source, to concentrate the magnetic field signals or reorient the magnetic field signals in a preselected direction, and to direct the concentrated or reoriented magnetic field signals toward at least one of the at least one magnetometer. In addition to, or as an alternative to, the flux concentrator, the system can include a passive shield made of the high magnetic permeability material. The system may also include active shielding.
Claims19
A magnetic field measurement system, comprising:
- a wearable article;
- at least one optically pumped magnetometer disposed on or in the wearable article;
- and
- at least one flux concentrator comprising a high magnetic permeability material and configured to receive magnetic field signals from a source, to concentrate the magnetic field signals or reorient the magnetic field signals in a preselected direction, and to direct the concentrated or reoriented magnetic field signals toward at least one of the at least one optically pumped magnetometer, wherein the at least one flux concentrator is disposed on or in the wearable article and configured, when the wearable article is worn, to be positioned between a wearer of the wearable article and the at least one optically pumped magnetometer.
A wearable magnetic field measurement system, comprising:
- a plurality of magnetometers arranged in an array;
- a passive shield comprising a high magnetic permeability material and disposed around the magnetometers and configured to reduce an ambient background magnetic field at the magnetometers, wherein the passive shield is shaped to fit over a body region upon which the magnetometers and passive shield are to be worn;
- and
- a magnetic field generator disposed around the magnetometers and configured to reduce an ambient background magnetic field at the magnetometers.
Dependencies are inferred from the claim text.