MICROWAVE MOISTURE METER.

Kozo Okada, Kensuke Nakamichi, Yukio Miyai, Junichi Takahashi, Takeshi Kojo, Satoshi Yoshioka

研究成果: ジャーナルへの寄稿学術論文査読

抄録

Conventional moisture meters for grains need a pair of antennae for transmitting and receiving microwaves. The grains are measured while they pass a narrow gap between the antennae. The flow of grain is not always smooth, resulting in low measurement accuracy. Furthermore, the gap is often clogged. In a newly developed device, the grains are measured while they are moving on a plate which includes a built-in microwave transmission line. The grains can flow on the plate without any obstacle, thus resulting in a high accuracy of lower than plus or minus 0. 7% (with unhulled rice having 12 to 22% moisture content). The microwave circuit is made of hybrid integrated circuits, making possible simple construction compactness, high reliability and accuracy. The frequency used is 10. 5 GHz.

本文言語英語
ページ(範囲)520-525
ページ数6
ジャーナルNatl Tech Rep Matsushita Electr Ind
24
3
出版ステータス出版済み - 1978

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