FIELD: measuring devices.
SUBSTANCE: control and measuring device has the first (201) and second (202) conductive elements and a current detector (205). The first conductive element contains a high-temperature superconductor, HTSC, and is intended to be connected to a current source (203) and introduced into a cryogenic system. The second conductive element contains a HTSC and is connected in parallel with the first conductive element through the first and second joints (204). The current detector is configured to detect the current in the second conductive element. When the HTSC in each of the first and second conductive elements is in a superconducting state, the resistance RT of the first conductive element between the first and second joints is less than the sum RB of the resistance of the second conductive element between the first and second joints and the resistances of the first and second joints, RT <RB.
EFFECT: invention reduces superconductivity disorders.
30 cl, 9 dwg
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