Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Distributive type parameters
Patent
1991-11-07
1993-08-24
Wieder, Kenneth A.
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Distributive type parameters
324 716, 324719, 324633, 324644, 324636, G01R 2732
Patent
active
052392694
ABSTRACT:
Apparatus and method for determining and imaging superconductor surface resistance. The apparatus comprises modified Gaussian confocal resonator structure with the sample remote from the radiating mirror. Surface resistance is determined by analyzing and imaging reflected microwaves; imaging reveals anomalies due to surface impurities, non-stoichiometry, and the like, in the surface of the superconductor.
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Hietala Vincent M.
Hohenwarter Gert K. G.
Martens Jon S.
Cone Gregory A.
Libman George H.
Solis Jose M.
The United States of America as represented by the United States
Wieder Kenneth A.
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