Compact Heading Error Free Scalar (CHEFS) Magnetometer

Physical Sciences Inc. (PSI) has been awarded a research program from the U.S. Air Force to develop a novel quantum magnetometer based on an atomic vapor capable of producing accurate readings of the total magnetic field (scalar magnitude) while operating in any orientation with respect to Earth’s magnetic field.

All other atomic magnetometer approaches suffer from dead zones and heading error requiring duplicate sensors and algorithmic corrections for use in Department of Defense (DoD) applications. PSI’s Compact Heading Error Free Scalar (CHEFS) magnetometer leverages the inherent accuracy of atomic transitions in a warm vapor while adopting a quantum sensor architecture to produce orientation-independent magnetic measurements, using similar components with demonstrated compatibility with low size, weight, and power (SWaP) operation.
PSI’s CHEFS magnetometer provides a unique measurement of the total (scalar) magnetic field in an orientation independent manner with high accuracy. This has use in the oil and gas industry that regularly performs magnetic and other geophysical surveys for exploration. In addition, the CHEFS can contribute to environmental and geoscience in the study of the earth’s magnetic field and space weather phenomena.

For more information, contact:

Dr. Joel Hensley
Vice President, Photonics Enterprise
Physical Sciences Inc.
(978) 689-0003