623 Cバンドマイクロ波センサを用いた地中に生息する食害虫探査システム(G02-8 生物のバイオメカニズム,G02 バイオエンジニアリング)

概要

論文の詳細を見る
The report describes a C band microwave prospect system of plant vermin living in the soil. The system serves to detect the vermin without digging up the soil, and so display it by real time. Some problems arise, however, to detect the vermin using the microwave sensor because the microwave signal rapidly attenuates on traveling in the soil with rich moisture content. We measured S parameter (signal amplitude ratio) using vector network analyzer for "Akadama" soil and "Kanuma" soil with 0%, 10%, 20%, 30%, 40% and 50% moisture. It was showed that the attenuation constant α depends on the microwave frequency and it can detect weak vibration of mini-speaker embedded in the soil less than 40% moisture.
社団法人日本機械学会の論文
2006-09-15