A direct current superconducting quantum interference device gradiometer with a digital signal processor controlled flux‐locked loop and comparison with a conventional analog feedback scheme
1996 ◽
Vol 67
(1)
◽
pp. 222-229
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2002 ◽
Vol 73
(11)
◽
pp. 4010-4013
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2001 ◽
Vol 72
(4)
◽
pp. 2203-2206
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1993 ◽
Vol 64
(2)
◽
pp. 583-584
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1994 ◽
Vol 65
(9)
◽
pp. 3005-3011
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1996 ◽
Vol 67
(8)
◽
pp. 2890-2893
◽
1996 ◽
Vol 35
(Part 2, No. 4B)
◽
pp. L486-L488
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