Electricity: measuring and testing – Magnetic – Magnetometers
Reexamination Certificate
2006-08-15
2006-08-15
Lefkowitz, Edward (Department: 2862)
Electricity: measuring and testing
Magnetic
Magnetometers
C324S225000
Reexamination Certificate
active
07091717
ABSTRACT:
A SQUID (Superconducting QUantum Interference Device) sensor using an auxiliary sensor, includes a SQUID sensing unit having a SQUID and a first feedback coil for creating a magnetic field at a periphery of the SQUID; an auxiliary sensor having a lower magnetic sensitivity and a higher operation range than the SQUID sensing unit; and a sensor reading unit for operating the SQUID sensing unit and the auxiliary sensor to read out a signal of the SQUID and at the same time, supplying the SQUID sensing unit with an offset magnetic field through the first feedback coil.
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Lee Heon Joo
Lee Seung Min
Oh Byung Du
Birch & Stewart Kolasch & Birch, LLP
Lefkowitz Edward
LG Electronics Inc.
Whittington Kenneth J.
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