Kelvin guard-ring capacitor

Kelvin guard-ring capacitor

[′kel·vən ′gärd ‚riŋ kə‚pas·əd·ər]

(electricity)

A capacitor with parallel circular plates, one of which has a guard ring separated from the plate by a narrow gap; it is used as a standard, whose capacitance can be accurately calculated from its dimensions.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.