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US 4,278,934 AGranted
Electrode assembly for a moisture meter
AssigneeSumitomo Electric Industries, Ltd.
InventorsSusumu Ihara, Yoshinobu Kashiuchi, Isamu Jinguji
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Abstract
An improved electrode assembly for a moisture meter of the electrostatic capacity type. The electrodes include a high-voltage electrode and a plurality of ground electrodes. The high-voltage electrode is insulated or electrostatically shielded at the base thereof in order to ensure high accuracy of the moisture meter.
Claims2
An electrode assembly for an electrostatic moisture meter of the electrostatic capacity type for determining the moisture content of powdery or granular material, said assembly comprising:
- a primary insulator;
- at least one secondary insulator mounted on the base of at least one high-voltage electrode in the form of a rod, said at least one secondary insulator and at least one high-voltage electrode mounted in said primary insulator and extending outwardly therefrom;
- a plurality of ground electrodes in the form of rods, said ground electrodes being mounted in said primary insulator at locations spaced around said at least one high-voltage electrode, and said ground electrodes being longer than said at least one high-voltage electrode;
- and
- an electrostatic shield mounted on said at least one secondary insulator and extending through said primary insulator for preventing an appreciable increase in electrostatic capacitance between said at least one high-voltage electrode and said ground electrode.
2 more elements
Dependencies are inferred from the claim text.