Force magnetometer for reel-to-reel assessment of superconducting tapes

Abstract

An apparatus is provided for reel-to-reel assessment of superconducting tapes (for example, REBCO CC tape) at low temperatures (for example, less than or equal to 65K). For example, the apparatus may be a force magnetometer. The apparatus may include one or more reels and pulleys used to move the superconducting tape into and out of a cryostat. The apparatus may also include a permanent magnet or electromagnet provided at a low temperature proximate to the tape. The magnet induces screening currents in the tape. The apparatus may also include an electric motor used to drive movement of the tape relative to the magnet. A tension meter may be provided to measure a tension of the tape. Alternatively, a current provided to the motor may also be measured. The apparatus may be used to measure the critical current at various positions on the superconducting tape at the low temperatures.

Dependencies are inferred from the claim text.