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System having unmodulated flux locked loop for measuring magnetic fields

United States Patent

August 15, 2006
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
A system (10) for measuring magnetic fields, wherein the system (10) comprises an unmodulated or direct-feedback flux locked loop (12) connected by first and second unbalanced RF coaxial transmission lines (16a, 16b) to a superconducting quantum interference device (14). The FLL (12) operates for the most part in a room-temperature or non-cryogenic environment, while the SQUID (14) operates in a cryogenic environment, with the first and second lines (16a, 16b) extending between these two operating environments.
Ganther, Jr.; Kenneth R. (Olathe, KS), Snapp; Lowell D. (Blue Springs, MO)
Honeywell Federal Manufacturing & Technologies, LLC (Kansas City, MO)
10/ 789,787
February 27, 2004
FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT PROGRAM The present invention was developed with support from the U.S. government under Contract No. DE-AC04-01AL66850 with the U.S. Department of Energy. Accordingly, the U.S. government has certain rights in the present invention.