초록 ▼

A stray field electrode (1) includes a base material (2) and a conductive filler material (3). The base material is preferably an insulating material, such as a silicone elastomer film. The conductive filler material is preferably a metal, such as silver particles dispersed in the silicone elastomer

A stray field electrode (1) includes a base material (2) and a conductive filler material (3). The base material is preferably an insulating material, such as a silicone elastomer film. The conductive filler material is preferably a metal, such as silver particles dispersed in the silicone elastomer film. A set of stray field electrodes (16, 17, 18) may be used to determine the presence of water in a material (8), such as electrical generator insulation (14), by comparing a phase angle for the electric field (19, 20) between the electrodes with a predetermined phase angle for a dry material (8).

대표청구항 ▼

[ What is claimed is:] [1.]1. An electrode comprising:a pair of discrete electrodes, each one of the electrodes being disposable on a solid insulating material and comprisinga base material; anda conductive filler material comprising a plurality of discrete conductive particles dispersed throughout

[ What is claimed is:] [1.]1. An electrode comprising:a pair of discrete electrodes, each one of the electrodes being disposable on a solid insulating material and comprisinga base material; anda conductive filler material comprising a plurality of discrete conductive particles dispersed throughout the base material; anda phase analyzer which receives a signal from the electrodes, wherein the phase analyzer measures a phase angle of an electric field between the electrodes.