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Interferometric Measurement of Magnetic Flux

IP.com Disclosure Number: IPCOM000050568D
Original Publication Date: 1982-Nov-01
Included in the Prior Art Database: 2005-Feb-10

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Chang, WH [+details]


This 3-junction Josephson interferometer is comprised of two superconducting loops which are slightly mismatched in their LI(o) product. This mismatch is about 5%. This slightly asymmetric interferometer is very sensitive to small magnetic fields, and the shift in its threshold curve, due to an input magnetic signal, is a measure of the flux in that signal.