Moisture sensing probe

Details Moisture sensing probe Moisture sensing probe

1999-02-22

2000-06-20

Oen, William

Measuring and testing

Moisture content or absorption characteristic of material

G01N 502, G01N 2556

Patent

active

060763965

ABSTRACT:
A probe for use in sensing moisture content of bulk grain or other granular material comprises a cylindrical tube, for example of plastics, having a tapering nose, and having adjacent said nose first and second electrical conductors wound helically around the tube so that the turns of one conductor are spaced from, and alternate with, the turns of the other conductor. The conductors are electrically insulated from one another by the plastics tube but are exposed on the surface of the tube, or project slightly from such surface, for direct electrical contact with the granular material. The conductors extend through respective apertures in the plastics tube and are connected within the tube to respective insulated conductors extending to electronic measuring circuitry within a handle of the probe.

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patent: 5442293 (1995-08-01), Lange

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