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United States Department of Agriculture

Agricultural Research Service

Title: Unified Calibration Function for Nondestructive Determination of Moisture Content in Grain and Particulate Materials by Microwave Sensors

item Trabelsi, Samir - OICD
item Kraszewski, Andrzej
item Nelson, Stuart

Submitted to: International Scientific Radio Union
Publication Type: Abstract Only
Publication Acceptance Date: August 13, 1999
Publication Date: N/A

Technical Abstract: Moisture content of cereal grains and other granular materials can be sensed with appropriately designed microwave moisture meters. Such meters typically require a separate calibration for each different kind of grain or other granular material. The concept of a unified calibration function of the permittivity of the materials is discussed, which has been shown to provide suitable results with a single calibration for both wheat and corn and for both rape seed and oats in separate free-space measurements on these two pairs of commodities. A unified calibration function simplifies the development of practical microwave moisture meters for use with granular and particulate materials.

Last Modified: 4/22/2015
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