On-line Moisture Content Measurement of Wheat

✍ Scribed by P.A. Berbert; B.C. Stenning

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 298 KB
• Volume: 65
• Category: Article
• ISSN: 0021-8634
• DOI: 10.1006/jaer.1996.0102

✦ Synopsis

A method has been developed which allows continuous measurement of the moisture content of a stream of hard winter wheat to an accuracy acceptable for normal grain drying operations . A test rig was designed and constructed to allow measurements to be made , on-line , of grain flowing through a sensing device . All sets of experiments were conducted at room temperature (19 -24 Њ C) , where the relative humidity varied from 50% to 65% . The dielectric properties were measured using wheat samples with bulk densities ranging from 625 to 891 kg / m 3 . A series of simultaneous measurements of capacitance and conductance at 0 и 5 MHz on varieties Slejpner , Mercia , and Hereward , varying in moisture content from 11 и 5 -21 и 5% , w . b ., revealed that the function [( » Ј Ϫ