Superconducting sensor for quench detection in a superconductor

Details Superconducting sensor for quench detection in a superconductor Superconducting sensor for quench detection in a superconductor

G - Physics

01

R

324/17, 324/45,

G01R 31/06 (2006.01) G01K 1/02 (2006.01) G01K 7/00 (2006.01) G01R 1/07 (2006.01) G01R 31/00 (2006.01) H02H 7/00 (2006.01)

Patent

CA 2024321

W.E. No. 54,966 ABSTRACT OF DISCLOSURE The present invention provides a straightforward sensor and method for quench detection in a superconducting coil, magnet or inductor. The superconducting sensor of the present invention consists of a probe having a twisted loop of superconducting wire in a protective sheath which is co-wound with the superconducting coil, and a readout device. A very small amount of energy is applied to the superconducting loop of wire in the probe by the readout device and its resistance is monitored by readout device. When joule heating occurs in the superconducting coil as a result of a portion becoming normal, the heat is transferred to a corresponding portion of the probe causing a portion of the superconducting wires therein to become normal. This causes the resistance in the superconducting wires to change and this change is detected or measured by the readout device which is magnetically coupled to the wires of the probe.

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