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Title: Apparatus for characterizing conductivity of superconducting materials

Abstract

Apparatus and method for noncontact, radio-frequency shielding current characterization of materials. Self- or mutual inductance changes in one or more inductive elements, respectively, occur when materials capable of supporting shielding currents are placed in proximity thereto, or undergo change in resistivity while in place. Such changes can be observed by incorporating the inductor(s) in a resonant circuit and determining the frequency of oscillation or by measuring the voltage induced on a coupled inductive element. The present invention is useful for determining the critical temperature and superconducting transition width for superconducting samples.

Inventors:
 [1]
  1. (Los Alamos, NM)
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM
OSTI Identifier:
869057
Patent Number(s):
5268646
Assignee:
University of California Patent, Trademark & Copyright Office (Alameda, CA) LANL
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; characterizing; conductivity; superconducting; materials; method; noncontact; radio-frequency; shielding; current; characterization; self-; mutual; inductance; changes; inductive; elements; respectively; occur; capable; supporting; currents; placed; proximity; thereto; undergo; change; resistivity; observed; incorporating; inductor; resonant; circuit; determining; frequency; oscillation; measuring; voltage; induced; coupled; element; useful; critical; temperature; transition; width; samples; materials capable; resonant circuit; conducting material; critical temperature; superconducting material; superconducting materials; inductive element; shielding currents; voltage induced; mutual inductance; superconducting transition; radio-frequency shielding; shielding current; characterizing conductivity; coupled inductive; inductive elements; inductance changes; superconducting sample; current characterization; /324/

Citation Formats

Doss, James D. Apparatus for characterizing conductivity of superconducting materials. United States: N. p., 1993. Web.
Doss, James D. Apparatus for characterizing conductivity of superconducting materials. United States.
Doss, James D. Fri . "Apparatus for characterizing conductivity of superconducting materials". United States. https://www.osti.gov/servlets/purl/869057.
@article{osti_869057,
title = {Apparatus for characterizing conductivity of superconducting materials},
author = {Doss, James D.},
abstractNote = {Apparatus and method for noncontact, radio-frequency shielding current characterization of materials. Self- or mutual inductance changes in one or more inductive elements, respectively, occur when materials capable of supporting shielding currents are placed in proximity thereto, or undergo change in resistivity while in place. Such changes can be observed by incorporating the inductor(s) in a resonant circuit and determining the frequency of oscillation or by measuring the voltage induced on a coupled inductive element. The present invention is useful for determining the critical temperature and superconducting transition width for superconducting samples.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}

Patent:

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