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2 087 994

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Application

94038386/25, 1994-10-11

(22)

Actual filing date

1994-10-11

(45)

Published

1997-08-20

(72)

Inventor

Jugaj K.N.Tikhomirov V.V.Skutin A.A.Kuzin V.V.Sychev S.A.Karelin V.I.Seropjan G.M.

(73)

Holder

Omskij Gosudarstvennyj Universitet

METHOD FOR MEASURING CRITICAL CURRENT OF HIGH- TEMPERATURE SUPERCONDUCTING MATERIAL Y-BA-CU-O Russian patent published in 1997 - IPC

Abstract RU 2087994 C1

FIELD: superconducting materials. SUBSTANCE: method involves induction of ring current in sample and detection of critical current using current of exciting inductance coil. Ring current in sample is induced by arbitrary shape flat field of sine current of increasing amplitude at frequency of 340-360 kHz. Output sine signal from receiving coil flops down to level of zero potential region of maximal amplitude. Then amplitude of exciting sine current is increased until non-zero potential is detected in flop region. Value of critical current is judged by exciting current amplitude which has been detected in this moment. EFFECT: increased precision. 2 dwg

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RU 2 087 994 C1

Authors

Jugaj K.N.

Tikhomirov V.V.

Skutin A.A.

Kuzin V.V.

Sychev S.A.

Karelin V.I.

Seropjan G.M.

Dates

1997-08-20—Published

1994-10-11—Filed

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