DENSITY-INDEPENDENT MICROWAVE MEASUREMENT OF MOISTURE-CONTENT IN STATIC AND FLOWING GRAIN

被引：0
|
作者：
MCLENDON, BD [1 ]
BRANCH, BG [1 ]
THOMPSON, SA [1 ]
KRASZEWSKI, A [1 ]
NELSON, SO [1 ]
机构：
[1] USDA ARS,RICHARD B RUSSELL AGR RES CTR,ATHENS,GA 30613
来源：
TRANSACTIONS OF THE ASAE | 1993年 / 36卷 / 03期
关键词：
GRAIN; MOISTURE CONTENT; MICROWAVES; NMR;
D O I：
暂无
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Conventional techniques for the determination of moisture content in grain often use small static samples to represent several tons of material. A more desirable alternative would be a method which utilizes continuous dynamic moisture measurement of the grain. The potential for making density-independent moisture content measurements in both static and flowing grain using microwave frequencies was evaluated in tests with soft red winter wheat over moisture contents from 11% to 19% (w.b.). Moisture measurements were predicted within +/-0.7% for the static samples and within +/-1.2% for wheat in a dynamic solid-flow condition. For suspended flow (aerated sample of grain) scatter became more apparent and the system accuracy decreased.
引用
收藏
页码：827 / 835
页数：9
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