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Gas magnetometer

United States Patent

9,329,152
May 3, 2016
View the Complete Patent at the US Patent & Trademark Office
Measurement of a precessional rate of a gas, such as an alkali gas, in a magnetic field is made by promoting a non-uniform precession of the gas in which substantially no net magnetic field affects the gas during a majority of the precession cycle. This allows sensitive gases that would be subject to spin-exchange collision de-phasing to be effectively used for extremely sensitive measurements in the presence of an environmental magnetic field such as the Earth's magnetic field.
Walker; Thad Gilbert (Madison, WI), Lancor; Brian Robert (Madison, WI), Wyllie; Robert (Silver Spring, MD)
Wisconsin Alumni Research Foundation (Madison, WI)
13/ 436,183
March 30, 2012
This invention was made under HD057965 awarded by the National Institutes of Health and DE-FC02-03ER46093 awarded by the U.S. Department of Energy. The government has certain rights in the invention.