Self-monitoring superconducting tape via integrated optical fibers

Patent metadata

Field	Value
Publication number	US-10892397-B2
Application number	US-201615382046-A
Country	US
Kind code	B2
Filing date	Dec 16, 2016
Priority date	Dec 17, 2015
Publication date	Jan 12, 2021
Grant date	Jan 12, 2021

Abstract

Disclosed are systems and methods for a self-monitoring conducting system that can respond to temperature, strain, and/or radiation changes via the use of optical fibers. The self-monitoring conducting system comprises a conducting component integrated with one or more optical fibers. The temperature, strain, and/or radiation changes can be sensed or detected via optical interrogation of the one or more optical fibers.

First claim

The invention claimed is:

1. A high-temperature superconductor (HTS) laminate structure, comprising:
an HTS-based insert extending from a first end to a second end;
one or more optical fibers coupled to the HTS-based insert and extending along a length of the HTS-based insert from the first end to the second end of the HTS-based insert for the HTS laminate structure;
an encapsulate surrounding the HTS-based insert and the one or more optical fibers, wherein the encapsulate is in contact with the HTS-based insert and the one or more optical fibers, wherein the encapsulate comprises a metal stabilizer; and
an optical distributed sensor interrogator coupled to the one or more optical fibers of the HTS laminate structure to receive an optical signal that is Rayleigh backscattered from the one or more optical fibers along the length of the HTS-based insert for the HTS laminate structure.

2. The HTS laminate structure of claim 1 , wherein the metal stabilizer is laminated to a top and to a bottom of the HTS-based insert via solder fillets.

3. The HTS laminate structure of claim 2 , wherein the one or more optical fibers are embedded within the encapsulate via the solder fillets.

4. The HTS laminate structure of claim 3 , wherein the metal stabilizer is bonded to the HTS-based insert via electroplating.

5. The HTS laminate structure of claim 1 , wherein the one or more optical fibers comprise a distributed sensor configured to monitor a state of the HTS laminate structure along the length of the HTS laminate structure.

6. The HTS laminate structure of claim 5 , wherein the one or more optical fibers are used to detect a normal zone.

7. The HTS laminate structure of claim 6 , wherein the normal zone is detected based at least in part on Rayleigh scattering.

8. The HTS laminate structure of claim 1 , wherein the optical distributed sensor interrogator comprises a light source, a detector, and an anti-reflective termination, the light source being coupled to the one or more optical fibers at an end, the detector coupled to the one or more optical fibers at the same end, and the anti-reflective termination coupled to another end of the one or more optical fibers.

9. The HTS laminate structure of claim 1 , wherein the HTS-based insert comprises at least one of rare earth barium copper oxide (REBCO) superconducting material or bismuth strontium calcium copper oxide (BSCCO) superconducting material.

10. The HTS laminate structure of claim 1 , wherein the one or more optical fibers are embedded within the encapsulate via solder.

11. The HTS laminate structure of claim 1 , wherein the one or more optical fibers are coated with a coating compatible with the metal stabilizer.

12. The HTS laminate structure of claim 1 , wherein the one or more optical fibers are in contact with the HTS-based insert.

13. The HTS laminate structure of claim 1 , further comprising an insulating wrap that encapsulates the metal stabilizer.

14. The HTS laminate structure of claim 1 , wherein the one or more optical fibers are uncoated.

Assignees

• Univ North Carolina State

Inventors

• Schwartz Justin
• Scurti Federico
• Rogers Samuel
• Chan Wan Kan

Classifications

• G01D5/35361 Primary

  using elastic backscattering to detect the measured quantity, e.g. using Rayleigh backscattering · CPC title

• G01D5/35374

  Particular layout of the fiber · CPC title

• H01F6/02

  Quenching; Protection arrangements during quenching {(protection circuits H02H7/001)} · CPC title

• H05H7/00

  Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00 · CPC title

• H01B7/324

  comprising temperature sensing means · CPC title