Magnetic field shaping components for magnetic field measurement systems and methods for making and using

R Jiménez-Martínez, J Alford, M Henninger - US Patent 10,983,177, 2021 - Google Patents
(57) 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 …

Magnetic field measurement system and method of using variable dynamic range optical magnetometers

J Alford, R Jiménez-Martinez - US Patent 10,976,386, 2021 - Google Patents
(57) ABSTRACT A magnetic field measurement system includes an array of magnetometers;
at least one magnetic field generator con figured to generate a compensation field across …

Compact optically pumped magnetometers with pump and probe configuration and systems and methods

H Mohseni, E Pratt, R Jiménez-Martínez… - US Patent …, 2022 - Google Patents
An optically pumped magnetometer includes a vapor cell; at least one light source
configured to produce a pump light beam and a probe light beam; a lens disposed between …

Integrated magnetometer arrays for magnetoencephalography (MEG) detection systems and methods

M Ledbetter, H Mohseni, J Alford, E Pratt… - US Patent …, 2022 - Google Patents
An array of optically pumped magnetometers includes a vapor cell arrangement having a
wafer defining one or more cavities and alkali metal atoms disposed in the cavities to …

Neural feedback loop filters for enhanced dynamic range magnetoencephalography (MEG) systems and methods

M Ledbetter, R Jiménez-Martinez, E Pratt… - US Patent …, 2021 - Google Patents
One embodiment is a magnetic field measurement system that includes at least one
magnetometer having a vapor cell, a light source to direct light through the vapor cell, and a …

Systems and methods with angled input beams for an optically pumped magnetometer

E Pratt - US Patent 11,131,729, 2021 - Google Patents
An optically pumped magnetometer device includes a first vapor cell having a light input
window; a first light source configured to produce a first light beam; a first prism optic …

Methods and systems for fast field zeroing for magnetoencephalography (MEG)

M Ledbetter - US Patent 11,747,413, 2023 - Google Patents
A method of operating an optically pumped magnetometer (OPM) includes directing a light
beam through a vapor cell of the OPM including a vapor of atoms; applying RF excitation to …

Systems and methods having an optical magnetometer array with beam splitters

H Mohseni - US Patent 10,996,293, 2021 - Google Patents
An array of optically pumped magnetometers includes an array of vapor cells; and an array
of beam splitters. The array of beam splitters is arranged into columns, including a first …

Detachable arrangement for on-scalp magnetoencephalography (MEG) calibration

Z Bednarke - US Patent 11,415,641, 2022 - Google Patents
A calibration arrangement of a magnetic field measurement device includes at least one
attachment point nub configured for attachment to the magnetic field measurement device; …

Interface configurations for a wearable sensor unit that includes one or more magnetometers

S Garber, J Alford, M Henninger, JK Gormley… - US Patent …, 2021 - Google Patents
An exemplary magnetic field measurement system includes a wearable sensor unit that
includes a magnetometer, a magnetic field generator configured to generate a …