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Ground Penetrating Radar (GPR)

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<strong>Ground</strong> <strong>Penetrating</strong> <strong>Radar</strong> (<strong>GPR</strong>) IET-<strong>Radar</strong> 2013<br />

同 軸 管 法 による 誘 電 率 測 定<br />

TDR<br />

Time Domain<br />

Reflectrometer<br />

(a) 周 波 数 特 性<br />

(b) 水 分 率<br />

•Easy to use<br />

•Good for In-Situ<br />

measurement<br />

•Not applicable to hard<br />

material<br />

•Only near surface<br />

information<br />

2013/4/7 <strong>GPR</strong> 67<br />

2013/4/7<br />

<strong>GPR</strong><br />

68<br />

TDR equipment and a probe<br />

Dielectric Properties of Water<br />

Microwave<br />

Oven<br />

2.45GHz<br />

<br />

S<br />

<br />

<br />

<br />

' j"<br />

1<br />

j<br />

Debye-Model<br />

2013/4/7 69<br />

2013/4/7 70<br />

Observation of Dynamic Behavior of<br />

<strong>Ground</strong> water level by <strong>GPR</strong><br />

Static State<br />

Production State<br />

ポンプ 小 屋 の 前 での 地 中 レーダ 計 測<br />

(モンゴル・ウランバートル 市 )<br />

71<br />

72<br />

Motoyuki Sato (Tohoku University, Japan) 12

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